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[GMCnet] My 2nd blown engine [message #184279] Thu, 13 September 2012 10:47 Go to next message
RicksGMC is currently offline  RicksGMC   United States
Messages: 145
Registered: May 2012
Karma: 0
Senior Member
Sooo, we bought our GMC in May and had barely driven it.
While going down the highway the oil pressure dropped to zero and it started to rattle and clatter. we had it towed to our local AAMCO because they had a big enough bay and were able to work on it (we had recently had them replace the leaking radiator and the carb).
They dropped the oil pan and found it had thrown a main bearings and found lots of sludge and metal filings. We were able to get a completely rebuilt 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the engine started to make chattering noise and the oil pressure dropped. We made it into a truck stop and had it towed from there.
It appears that it has suffered the same failure (WTF?) we are now waiting for it to get towed from Lacrosse WI back to AAMCO where it be repaired under warranty (hopefully!).

I'm somewhat mechanical but I'm still trying to wrap my head around the workings of this beast, as for my wife: I have averted the divorce by admitting the GMC is my fault and my problem :-I and she now says she will 'consider' riding in it with me again "some day" (that's progress!).

Rick

Rick&Tammy Drummond
Prior Lake MN
'74 (re)Painted Desert
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Rick Rick&Tammy Drummond Prior Lake MN '74 (re)Painted Desert
Re: [GMCnet] My 2nd blown engine [message #184281 is a reply to message #184279] Thu, 13 September 2012 10:51 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
awwww mannnn

I am so sorry,
DickP makes the bes engines, (i think)
pricey but they last
gene


On Thu, Sep 13, 2012 at 8:47 AM, Rick <randts.gmc@gmail.com> wrote:

> Sooo, we bought our GMC in May and had barely driven it.
> While going down the highway the oil pressure dropped to zero and it
> started to rattle and clatter. we had it towed to our local AAMCO because
> they had a big enough bay and were able to work on it (we had recently had
> them replace the leaking radiator and the carb).
> They dropped the oil pan and found it had thrown a main bearings and found
> lots of sludge and metal filings. We were able to get a completely rebuilt
> 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
> Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the
> engine started to make chattering noise and the oil pressure dropped. We
> made it into a truck stop and had it towed from there.
> It appears that it has suffered the same failure (WTF?) we are now waiting
> for it to get towed from Lacrosse WI back to AAMCO where it be repaired
> under warranty (hopefully!).
>
> I'm somewhat mechanical but I'm still trying to wrap my head around the
> workings of this beast, as for my wife: I have averted the divorce by
> admitting the GMC is my fault and my problem :-I and she now says she will
> 'consider' riding in it with me again "some day" (that's progress!).
>
> Rick
>
> Rick&Tammy Drummond
> Prior Lake MN
> '74 (re)Painted Desert
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] My 2nd blown engine [message #184282 is a reply to message #184281] Thu, 13 September 2012 11:04 Go to previous messageGo to next message
Dennis S is currently offline  Dennis S   United States
Messages: 3046
Registered: November 2005
Karma: 2
Senior Member
Here is the website for Dick Paterson, whom Gene mentions...

http://www.paterson-gmc.com/

Call him -- he is always willing to help.

Dennis

Mr ERFisher wrote on Thu, 13 September 2012 10:51

awwww mannnn

I am so sorry,
DickP makes the bes engines, (i think)
pricey but they last
gene


On Thu, Sep 13, 2012 at 8:47 AM, Rick <randts.gmc@gmail.com> wrote:

> Sooo, we bought our GMC in May and had barely driven it.
> While going down the highway the oil pressure dropped to zero and it
> started to rattle and clatter. we had it towed to our local AAMCO because
> they had a big enough bay and were able to work on it (we had recently had
> them replace the leaking radiator and the carb).
> They dropped the oil pan and found it had thrown a main bearings and found
> lots of sludge and metal filings. We were able to get a completely rebuilt
> 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
> Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the
> engine started to make chattering noise and the oil pressure dropped. We
> made it into a truck stop and had it towed from there.
> It appears that it has suffered the same failure (WTF?) we are now waiting
> for it to get towed from Lacrosse WI back to AAMCO where it be repaired
> under warranty (hopefully!).
>
> I'm somewhat mechanical but I'm still trying to wrap my head around the
> workings of this beast, as for my wife: I have averted the divorce by
> admitting the GMC is my fault and my problem :-I and she now says she will
> 'consider' riding in it with me again "some day" (that's progress!).
>
> Rick
>
> Rick&Tammy Drummond
> Prior Lake MN
> '74 (re)Painted Desert
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________





Dennis S
73 Painted Desert 230
Memphis TN Metro

[Updated on: Thu, 13 September 2012 11:05]

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Re: [GMCnet] My 2nd blown engine [message #184283 is a reply to message #184279] Thu, 13 September 2012 11:10 Go to previous messageGo to next message
Gary Worobec is currently offline  Gary Worobec   United States
Messages: 867
Registered: May 2005
Karma: -1
Senior Member
Rick, you are close enough to Canada that you might want to consider
speaking with Dick Paterson about a new motor. He is in Ontario. This is a
case of how many times do you want to cry. Personally I like the "cry once"
scenario. You are going to pay (and cry) a bit more for one of Dick's
engines but you will only cry once. You could also speak to Jim Bounds in
Florida. Using a properly developed GMC MH motor from either of these two
will make it a one and done proposition.

Thanks

Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA


----- Original Message -----
From: "Rick" <randts.gmc@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, September 13, 2012 8:47 AM
Subject: [GMCnet] My 2nd blown engine


> Sooo, we bought our GMC in May and had barely driven it.
> While going down the highway the oil pressure dropped to zero and it
> started to rattle and clatter. we had it towed to our local AAMCO because
> they had a big enough bay and were able to work on it (we had recently had
> them replace the leaking radiator and the carb).
> They dropped the oil pan and found it had thrown a main bearings and found
> lots of sludge and metal filings. We were able to get a completely rebuilt
> 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
> Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the
> engine started to make chattering noise and the oil pressure dropped. We
> made it into a truck stop and had it towed from there.
> It appears that it has suffered the same failure (WTF?) we are now waiting
> for it to get towed from Lacrosse WI back to AAMCO where it be repaired
> under warranty (hopefully!).
>
> I'm somewhat mechanical but I'm still trying to wrap my head around the
> workings of this beast, as for my wife: I have averted the divorce by
> admitting the GMC is my fault and my problem :-I and she now says she will
> 'consider' riding in it with me again "some day" (that's progress!).
>
> Rick
>
> Rick&Tammy Drummond
> Prior Lake MN
> '74 (re)Painted Desert
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] My 2nd blown engine [message #184285 is a reply to message #184279] Thu, 13 September 2012 11:21 Go to previous messageGo to next message
Jim Galbavy is currently offline  Jim Galbavy   United States
Messages: 1443
Registered: August 2007
Karma: 7
Senior Member
Rick,

I didn't know AAMCO knew anything about motors. Is the engine they supplied a motor set up for a motorhome or a car(all 455s are not the same)? A motorhome engine is a high torque / low rpm animal not like a car engine which is a low torque / high rpm beast. What standard is it built to.

Three good choices for a GMC motorhome motor are JimK @ Applied, JimB @ the COOP or Dick Paterson.

jim galbavy
'73 x-CL ANNIE
Lake Mary, FL
Re: [GMCnet] My 2nd blown engine [message #184288 is a reply to message #184285] Thu, 13 September 2012 11:35 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
Rick,
Call me as I can discuss your problemand possibly shed some light .
(800)75

On Thu, Sep 13, 2012 at 9:21 AM, Jim Galbavy <j.galbavy@att.net> wrote:

>
>
> Rick,
>
> I didn't know AAMCO knew anything about motors. Is the engine they
> supplied a motor set up for a motorhome or a car(all 455s are not the
> same)? A motorhome engine is a high torque / low rpm animal not like a car
> engine which is a low torque / high rpm beast. What standard is it built
> to.
>
> Three good choices for a GMC motorhome motor are JimK @ Applied, JimB @
> the COOP or Dick Paterson.
>
> jim galbavy
> '73 x-CL ANNIE
> Lake Mary, FL
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] My 2nd blown engine [message #184300 is a reply to message #184279] Thu, 13 September 2012 12:38 Go to previous messageGo to next message
roy1 is currently offline  roy1   United States
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
Senior Member
RicksGMC wrote on Thu, 13 September 2012 08:47

Sooo, we bought our GMC in May and had barely driven it.
While going down the highway the oil pressure dropped to zero and it started to rattle and clatter. we had it towed to our local AAMCO because they had a big enough bay and were able to work on it (we had recently had them replace the leaking radiator and the carb).
They dropped the oil pan and found it had thrown a main bearings and found lots of sludge and metal filings. We were able to get a completely rebuilt 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the engine started to make chattering noise and the oil pressure dropped. We made it into a truck stop and had it towed from there.
It appears that it has suffered the same failure (WTF?) we are now waiting for it to get towed from Lacrosse WI back to AAMCO where it be repaired under warranty (hopefully!).

I'm somewhat mechanical but I'm still trying to wrap my head around the workings of this beast, as for my wife: I have averted the divorce by admitting the GMC is my fault and my problem :-I and she now says she will 'consider' riding in it with me again "some day" (that's progress!).

Rick

Rick&Tammy Drummond
Prior Lake MN
'74 (re)Painted Desert
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If the engine was a quality rebuild and that is a big if. The folks that replaced it absolutely needed to flush the external oil lines and use a new external oil cooler or you will wipe out the replacement engine in short order. Just blowing the cooler out with brake fluid doesn't get it.


Roy Keen Minden,NV 76 X Glenbrook
Re: [GMCnet] My 2nd blown engine [message #184301 is a reply to message #184279] Thu, 13 September 2012 12:35 Go to previous messageGo to next message
Terry Taylor is currently offline  Terry Taylor   United States
Messages: 113
Registered: October 2004
Location: San Lorenzo, CA
Karma: 0
Senior Member
If the radiator was not removed and the oil cooler professionally
cleaned, then there could have been (probably were) metal particles
left in the oil cooler and that is VERY probably the cause of the
second engine failure. Have seen that happen many times.


> I'm somewhat mechanical but I'm still trying to wrap my head around the workings of this beast, as for my wife: I have averted the divorce by admitting the GMC is my fault and my problem :-I and she now says she will 'consider' riding in it with me again "some day" (that's progress!).
>
> Rick
>


--
Terry Taylor
74 ex-Eleganza SE
San Lorenzo. CA

Merchanise Web Site: http://www.dldesignstore.com
Duct tape is like the force.....
It has a light side and a dark side and
It holds the galaxy together.
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Re: [GMCnet] My 2nd blown engine [message #184306 is a reply to message #184279] Thu, 13 September 2012 12:57 Go to previous messageGo to next message
Ray Erspamer is currently offline  Ray Erspamer   United States
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma: -3
Senior Member
WOW, that SUCKS !!! Keep us posted on what you find out Rick ! So sorry to
hear this news !

Ray


Ray & Lisa
78 Royale "Great Lakes Eagle"
Center Kitchen TZE368V101144
Wauwatosa, Wisconsin 53226
Email: 78GMC-Royale@att.net
414-745-3188
Web Site: http://ray-lisa.page.tl/




________________________________
From: Rick <randts.gmc@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Thu, September 13, 2012 10:47:39 AM
Subject: [GMCnet] My 2nd blown engine

Sooo, we bought our GMC in May and had barely driven it.
While going down the highway the oil pressure dropped to zero and it started to
rattle and clatter. we had it towed to our local AAMCO because they had a big
enough bay and were able to work on it (we had recently had them replace the
leaking radiator and the carb).
They dropped the oil pan and found it had thrown a main bearings and found lots
of sludge and metal filings. We were able to get a completely rebuilt 455
(balanced, blueprinted,...), they installed it and it ran beautifully!
Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the
engine started to make chattering noise and the oil pressure dropped. We made it
into a truck stop and had it towed from there.
It appears that it has suffered the same failure (WTF?) we are now waiting for
it to get towed from Lacrosse WI back to AAMCO where it be repaired under
warranty (hopefully!).

I'm somewhat mechanical but I'm still trying to wrap my head around the workings
of this beast, as for my wife: I have averted the divorce by admitting the GMC
is my fault and my problem :-I and she now says she will 'consider' riding in it
with me again "some day" (that's progress!).

Rick

Rick&Tammy Drummond
Prior Lake MN
'74 (re)Painted Desert
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Ray Erspamer 78 GMC Royale Center Kitchen 403, 3.70 Final Drive Holley Sniper Quadrajet EFI System, Holley Hyperspark Ignition System 414-484-9431
Re: [GMCnet] My 2nd blown engine [message #184326 is a reply to message #184300] Thu, 13 September 2012 15:29 Go to previous messageGo to next message
RicksGMC is currently offline  RicksGMC   United States
Messages: 145
Registered: May 2012
Karma: 0
Senior Member
My suspicion is the external cooler also, I'll make sure it's all replaced this time if not by them then by me.

I'm a firm believer that the term "I know just enough to be dangerous" applies to me, unfortunately on the GMC I know less than that..... Guess that means I'm really in trouble!


> Rick&Tammy Drummond
> Prior Lake MN
> '74 (re)Painted Desert

On Sep 13, 2012, at 12:38 PM, roy@gmcnet.org wrote:

>
>
> RicksGMC wrote on Thu, 13 September 2012 08:47
>> Sooo, we bought our GMC in May and had barely driven it.
>> While going down the highway the oil pressure dropped to zero and it started to rattle and clatter. we had it towed to our local AAMCO because they had a big enough bay and were able to work on it (we had recently had them replace the leaking radiator and the carb).
>> They dropped the oil pan and found it had thrown a main bearings and found lots of sludge and metal filings. We were able to get a completely rebuilt 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
>> Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the engine started to make chattering noise and the oil pressure dropped. We made it into a truck stop and had it towed from there.
>> It appears that it has suffered the same failure (WTF?) we are now waiting for it to get towed from Lacrosse WI back to AAMCO where it be repaired under warranty (hopefully!).
>>
>> I'm somewhat mechanical but I'm still trying to wrap my head around the workings of this beast, as for my wife: I have averted the divorce by admitting the GMC is my fault and my problem :-I and she now says she will 'consider' riding in it with me again "some day" (that's progress!).
>>
>> Rick
>>
>> Rick&Tammy Drummond
>> Prior Lake MN
>> '74 (re)Painted Desert
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> If the engine was a quality rebuild and that is a big if. The folks that replaced it absolutely needed to flush the external oil lines and use a new external oil cooler or you will wipe out the replacement engine in short order. Just blowing the cooler out with brake fluid doesn't get it.
> --
> Roy Keen
> Minden,NV
> 76 X Glenbrook
> _______________________________________________
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Rick Rick&Tammy Drummond Prior Lake MN '74 (re)Painted Desert
Re: [GMCnet] My 2nd blown engine [message #184328 is a reply to message #184326] Thu, 13 September 2012 15:43 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Rick, I feel your pain. I got 6000 miles and one year on mine. I was fortunate in that I bought it from Jim K. He is a warranty type guy, probably the king of warranties. Make sure you ask them what they did to clean the coolers. I refused to use the cooler in the aluminum radiator with the second engine and Jim K. sent me a nice external one. 3500 miles and rolling.
Life can be good again, just double check everything and take nothing for granted.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] My 2nd blown engine [message #184338 is a reply to message #184279] Thu, 13 September 2012 16:25 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
I have never heard of a Dick Paterson Engine self destructing.
I would strongly suggest that you look to Dick if you are in the market for a rebuilt Olds 455 or 403 engine.

http://www.paterson-gmc.com/





Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] My 2nd blown engine [message #184393 is a reply to message #184279] Thu, 13 September 2012 21:45 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Rick,

Sorry to hear of your bad luck, I see you note that the engine you got from AAMCO was balanced and blueprinted. If you don't mind it
would be of interest to everybody that frequents this forum to know how much you had to pay for that engine. Just the engine itself,
not the installation.

The reason I mention that is that what makes an engine run better / longer is quality of the parts and ATTENTION TO DETAIL. I
GA-RON-TEE that there is NO WAY IN HELL that a business that charges say $2500 for an engine can or will do as good a job as someone
that charges $5000!

How's that for demonstrating an acute grasp on the obvious!

By the way I bought a Dick Paterson Stage II engine from a gentleman in Canada that had gone through a fire. When I got it to
Houston I found that water had gotten into the cylinders so I had to disassemble it. I have been building engines since I was 18 and
as I removed each part I noted more and more things done 110% correctly to assure that the engine would run well and stay together.
I have been around here for about 5 years now and have heard about a fair few engines that blew that have been built by others but
NEVER one that Dick built!

As the saying goes - YOU GET WHAT YOU PAY FOR!

Dick will be attending the Amana Colonies GMCMI Convention, I see it's about 280 miles from Prior Lake, MN to Amana, IA C'mon down
and meet Dick and the rest of the "gang." We'll shout you a beer to commiserate your misfortune!

Regards,
Rob M.

-----Original Message-----
From: Rick

Sooo, we bought our GMC in May and had barely driven it.
While going down the highway the oil pressure dropped to zero and it started to rattle and clatter. we had it towed to our local
AAMCO because they had a big enough bay and were able to work on it (we had recently had them replace the leaking radiator and the
carb).
They dropped the oil pan and found it had thrown a main bearings and found lots of sludge and metal filings. We were able to get a
completely rebuilt 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the engine started to make chattering noise and the oil
pressure dropped. We made it into a truck stop and had it towed from there.
It appears that it has suffered the same failure (WTF?) we are now waiting for it to get towed from Lacrosse WI back to AAMCO where
it be repaired under warranty (hopefully!).

I'm somewhat mechanical but I'm still trying to wrap my head around the workings of this beast, as for my wife: I have averted the
divorce by admitting the GMC is my fault and my problem :-I and she now says she will 'consider' riding in it with me again "some
day" (that's progress!).

Rick


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] My 2nd blown engine [message #184421 is a reply to message #184279] Fri, 14 September 2012 07:50 Go to previous messageGo to next message
Steven Ferguson is currently offline  Steven Ferguson   United States
Messages: 3447
Registered: May 2006
Karma: 0
Senior Member
Sounds like the installers may have failed to properly flush the oil cooler
and associated lines. Failure to do this usually results in all the crap
from the previous failure being introduced into the new engine as soon as
it is started.

On Thu, Sep 13, 2012 at 8:47 AM, Rick <randts.gmc@gmail.com> wrote:

> Sooo, we bought our GMC in May and had barely driven it.
> While going down the highway the oil pressure dropped to zero and it
> started to rattle and clatter. we had it towed to our local AAMCO because
> they had a big enough bay and were able to work on it (we had recently had
> them replace the leaking radiator and the carb).
> They dropped the oil pan and found it had thrown a main bearings and found
> lots of sludge and metal filings. We were able to get a completely rebuilt
> 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
> Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the
> engine started to make chattering noise and the oil pressure dropped. We
> made it into a truck stop and had it towed from there.
> It appears that it has suffered the same failure (WTF?) we are now waiting
> for it to get towed from Lacrosse WI back to AAMCO where it be repaired
> under warranty (hopefully!).
>
> I'm somewhat mechanical but I'm still trying to wrap my head around the
> workings of this beast, as for my wife: I have averted the divorce by
> admitting the GMC is my fault and my problem :-I and she now says she will
> 'consider' riding in it with me again "some day" (that's progress!).
>
> Rick
>
> Rick&Tammy Drummond
> Prior Lake MN
> '74 (re)Painted Desert
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
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Re: [GMCnet] My 2nd blown engine [message #184422 is a reply to message #184421] Fri, 14 September 2012 08:27 Go to previous messageGo to next message
GMC_LES is currently offline  GMC_LES   United States
Messages: 569
Registered: October 2009
Location: Montreal
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Senior Member
Wasn't the engine oil cooler issue beat to death a while back? It s my understanding that the oil flows from the pump through the cooler first, then the oil filter, and then back to the engine. It was discussed here at the same time that most oil filters will go into bypass until the oil warms up. It was also mentioned by several that it is almost impossible to sucessfully flush a cooler with out special equipment. With all that info in hand it is obvious that even the best efforts could go wrong. Look at Ken's and Dan's experiences.

I agree that debris in the cooler should be dealt with, but I can't help but question the oil change recommendations of many shops for their rebuilt engines. Many are still of the opinion that it is ok to run the start up oil for several hundred or even thousands of mules before doing a change.

Les Burt
Montreal



On 2012-09-14, at 8:50 AM, Steven Ferguson <botiemad11@gmail.com> wrote:

> Sounds like the installers may have failed to properly flush the oil cooler
> and associated lines. Failure to do this usually results in all the crap
> from the previous failure being introduced into the new engine as soon as
> it is started.
>
> On Thu, Sep 13, 2012 at 8:47 AM, Rick <randts.gmc@gmail.com> wrote:
>
>> Sooo, we bought our GMC in May and had barely driven it.
>> While going down the highway the oil pressure dropped to zero and it
>> started to rattle and clatter. we had it towed to our local AAMCO because
>> they had a big enough bay and were able to work on it (we had recently had
>> them replace the leaking radiator and the carb).
>> They dropped the oil pan and found it had thrown a main bearings and found
>> lots of sludge and metal filings. We were able to get a completely rebuilt
>> 455 (balanced, blueprinted,...), they installed it and it ran beautifully!
>> Took it for a day drive to WI 3 weeks ago and got maybe 100 miles when the
>> engine started to make chattering noise and the oil pressure dropped. We
>> made it into a truck stop and had it towed from there.
>> It appears that it has suffered the same failure (WTF?) we are now waiting
>> for it to get towed from Lacrosse WI back to AAMCO where it be repaired
>> under warranty (hopefully!).
>>
>> I'm somewhat mechanical but I'm still trying to wrap my head around the
>> workings of this beast, as for my wife: I have averted the divorce by
>> admitting the GMC is my fault and my problem :-I and she now says she will
>> 'consider' riding in it with me again "some day" (that's progress!).
>>
>> Rick
>>
>> Rick&Tammy Drummond
>> Prior Lake MN
>> '74 (re)Painted Desert
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>>
>
>
>
> --
> Fathom the hypocrisy of a nation where every citizen must prove they have
> health insurance......but not everyone has to prove they're a citizen.
> Steve Ferguson
> Sierra Vista, AZ
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Les Burt Montreal 1975 Eleganza 26ft A work in Progress
Re: [GMCnet] My 2nd blown engine [message #184423 is a reply to message #184422] Fri, 14 September 2012 08:53 Go to previous messageGo to next message
GMC_LES is currently offline  GMC_LES   United States
Messages: 569
Registered: October 2009
Location: Montreal
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Senior Member
I accidentally hit send before I was finished. DOH!!!

So to pick up where I ended off in the oil change issue . . .

I feel that the initial cam break in should be done with a light oil (5w30 or even lighter) and the oil & filter dumped immediately afterwards. This reduces the risk of the filter going into bypass and it removes most of the break in debris while it is still in suspension. It would also catch any debris that dislodges from the cooler. The engine isn't under any heavy loads at this point so the cushion of thicker oil isn't as important provided the engine was put together with enough assembly lube.

In response to Rob's comment on the cost of a rebuilt engine.

In general you are correct but there are many engine builders that are as detailed in their work as the big pros but don't have the overhead of a big shop to cover. Therefore they can offer a better product for less $$ than the pros.

The question then becomes: does that happen? Not very often as it is human to ask market price for a product regardless of how much it actually cost to produce that product.

So can you REALLY base the quality of an engine on the price you pay?

Les Burt
Montreal



On 2012-09-14, at 9:27 AM, Les Burt <gmc.les@gmail.com> wrote:

> Wasn't the engine oil cooler issue beat to death a while back? It s my understanding that the oil flows from the pump through the cooler first, then the oil filter, and then back to the engine. It was discussed here at the same time that most oil filters will go into bypass until the oil warms up. It was also mentioned by several that it is almost impossible to sucessfully flush a cooler with out special equipment. With all that info in hand it is obvious that even the best efforts could go wrong. Look at Ken's and Dan's experiences.
>
> I agree that debris in the cooler should be dealt with, but I can't help but question the oil change recommendations of many shops for their rebuilt engines. Many are still of the opinion that it is ok to run the start up oil for several hundred or even thousands of mules before doing a change.
>
> Les Burt
> Montreal
>
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Les Burt Montreal 1975 Eleganza 26ft A work in Progress
Re: [GMCnet] My 2nd blown engine [message #184504 is a reply to message #184279] Fri, 14 September 2012 19:27 Go to previous messageGo to next message
George Beckman is currently offline  George Beckman   United States
Messages: 1085
Registered: October 2008
Location: Colfax, CA
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Senior Member
RicksGMC wrote on Thu, 13 September 2012 08:47



It appears that it has suffered the same failure (WTF?) we are now waiting for it to get towed from Lacrosse WI back to AAMCO where it be repaired under warranty (hopefully!).

Rick



First, I am really sorry to hear of the second engine failure in so few miles. Really discouraging.

If you come to Amana, have your wife talk to my wife, Ruth.

Let's just suppose a fellow

1. Added Spark Control to his fuel injection
2. And the fellow couldn't find a source for the wire plug that goes to the module
3. And the fellow decided to make his own.
4. And between Barstow and Needles the fellow's wife decides she will try driving
5. And the little home made plug comes loose
6. And the coach backfires so hard it blows a hole in the back of a muffler so big a small child could put his hand in it
7. And then the coach stopped

The fellow's wife might be upset and say she is never driving again.

The good news is that after a year or so, she is driving again and has passed the "Ladies let's drive that coach." class at Du Quoin.

Better days are ahead.


'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
Re: [GMCnet] My 2nd blown engine [message #184901 is a reply to message #184504] Mon, 17 September 2012 21:16 Go to previous message
RicksGMC is currently offline  RicksGMC   United States
Messages: 145
Registered: May 2012
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Thanks George glad to know I'm not alone!
I read your post to my wife and got a laugh and a smile (progress!).

Rick

Prior Lake MN
'74 re-Painted Desert

On Sep 14, 2012, at 7:27 PM, George Beckman <gbeckman@pggp.com> wrote:

>
>
> RicksGMC wrote on Thu, 13 September 2012 08:47
>> It appears that it has suffered the same failure (WTF?) we are now waiting for it to get towed from Lacrosse WI back to AAMCO where it be repaired under warranty (hopefully!).
>>
>> Rick
>
> First, I am really sorry to hear of the second engine failure in so few miles. Really discouraging.
>
> If you come to Amana, have your wife talk to my wife, Ruth.
>
> Let's just suppose a fellow
>
> 1. Added Spark Control to his fuel injection
> 2. And the fellow couldn't find a source for the wire plug that goes to the module
> 3. And the fellow decided to make his own.
> 4. And between Barstow and Needles the fellow's wife decides she will try driving
> 5. And the little home made plug comes loose
> 6. And the coach backfires so hard it blows a hole in the back of a muffler so big a small child could put his hand in it
> 7. And then the coach stopped
>
> The fellow's wife might be upset and say she is never driving again.
>
> The good news is that after a year or so, she is driving again and has passed the "Ladies let's drive that coach." class at Du Quoin.
>
> Better days are ahead.
>
> --
> '74 Eleganza, SE, Howell + EBL
> Best Wishes,
> George
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Rick Rick&Tammy Drummond Prior Lake MN '74 (re)Painted Desert
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