Home » Public Forums » GMCnet » Intake Badness
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| Re: [GMCnet] Intake Badness [message #133194 is a reply to message #133193] |
Sun, 03 July 2011 12:45   |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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looks normal,
wait till you see the oil pump
http://goo.gl/gmT2J
gene
On Sun, Jul 3, 2011 at 10:41 AM, Chris Choffat <cchoffataz@yahoo.com> wrote:
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> Just a few pics of what my Valley looks like after the Intake was
> removed...
>
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> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39705&title=intake-day-21-21-21&cat=3625
> --
> -Chr$: Perpetual SmartAss
> 77 Ex-Kingsley 455, Power Drive, 3:21 FD, Quadra bag. The Engineer's
> Motorhome
> Scottsdale, AZ
>
> Photosite: Chrisc "It has Begun"
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
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Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: Intake Badness [message #133196 is a reply to message #133193] |
Sun, 03 July 2011 13:10 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Yeah, I was expecting that, Oddly enough, when I pulled the pan, my pump wasn't too crusty. I took care of all of that when I did the front of the motor and pan gasket when the tranny was out.
The camshaft does show a wee-bit of wear, but for 115K, not as much as I thought it would.
I'm contemplating the Alum intake, but the cost....
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Intake Badness [message #133202 is a reply to message #133193] |
Sun, 03 July 2011 13:53 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Chris,
I have not yet undertaken this job, though I have the gaskets and plates in my garage. Do you have a picture of valley with the turkey tray removed? I see the closeups of the pushrods and lifters and that's just ugly. I wonder how much worse it would be if you had a blocked muffler?
How tough is the intake removal? Do you drain the coolant and remove the A/C brackets? I've got to get to this one. A strong vacuum cleaner and a 5-in-1 should get rid of much of the gunk.
Larry Davick
The Mystery Machine
Sent from my iPad
On Jul 3, 2011, at 10:41 AM, Chris Choffat <cchoffataz@yahoo.com> wrote:
>
>
> Just a few pics of what my Valley looks like after the Intake was removed...
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39705&title=intake-day-21-21-21&cat=3625
> --
> -Chr$: Perpetual SmartAss
> 77 Ex-Kingsley 455, Power Drive, 3:21 FD, Quadra bag. The Engineer's Motorhome
> Scottsdale, AZ
>
> Photosite: Chrisc "It has Begun"
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: Intake Badness [message #133231 is a reply to message #133193] |
Sun, 03 July 2011 19:53 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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yeah, this sucker is cracked...
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Intake Badness [message #133241 is a reply to message #133240] |
Sun, 03 July 2011 21:14 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Len,
You don't need 6" for the Edelbrock, only about 4". And you'll hate
it every time you climb over it or attempt to clean the front floor or
open the hatch.
And be sure to block its crossover; do NOT use the iron plugs (as they
require for their warranty):
http://www.gmcmhphotos.com/photos/showgallery.php?cat=3057
JLBMTMHO-E (Just a Little Bit More Than My Honest Opinion - Experience)
Ken H.
On Sun, Jul 3, 2011 at 9:50 PM, Phil Swanson wrote:
>
> Go get an Edelbrock, block the heat riser and put a small Mondello valley splash guard in and raise the floor about 6 inches with a small console and you are set. You will pick up some HP as well.
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: Intake Badness [message #133254 is a reply to message #133196] |
Mon, 04 July 2011 02:34 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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| Chr$ wrote on Sun, 03 July 2011 11:10 |
I'm contemplating the Alum intake, but the cost....
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I have a Rockwell aluminum which has no crossover. I love it, as it is easy to put on and lift off.
Now, I say on and off, because a friend (who is no bozo) and I put it on. We were _very_ careful; checking with a light, etc. for fit. We used studs so the manifold would set correctly. We used the "recommended" gaskets and block off plates.
It leaked. Sucked 8 quarts in 500 miles.
At this time I realized the the Rockwell ports are not as thick as the iron. I am talking about the machined mating faces on the ports. The leak was caused by the gasket drifting low and not being between the two faces on #6. The holes in the gasket, on the guide studs, will let it fall low.
I pulled it off and used the "other" suggested gaskets and block off plates. I put the gasket on the intake with RTV, so I knew it was centered on the thinner lips.
It may or may not have been leaking. I was not using oil. I say this because my engine was on its last legs and so it came off and is now on the new engine. When we pulled it off, no one was very impressed. This gasket was actually cut a bit by the squeeze.
I had the new engine done by one of the shops and the new gasket of choice was the turkey tray and RTV. No blockoff plates. No oil leaks. No sign of sucking oil or vacuum leaks. Engine running well.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
[Updated on: Mon, 04 July 2011 02:36] Report message to a moderator |
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| Re: Intake Badness [message #133295 is a reply to message #133193] |
Mon, 04 July 2011 12:32 |
GeorgeRud
Messages: 1380
Registered: February 2007
Location: Chicago, IL
Karma: 0
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If an intake is cracked, does filling the crossover repair it to a point that it is still serviceable?
Has anyone tried using the engine block filler that was discussed on the GMCnet a while ago? It seemed like a good and easy way to solve the problem when used with the block off gaskets.
George Rudawsky
Chicago, IL
75 Palm Beach
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| Re: Intake Badness [message #133329 is a reply to message #133295] |
Mon, 04 July 2011 18:56 |
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jaholland
Messages: 565
Registered: June 2010
Location: Sweet Home Alebamy
Karma: 0
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| GeorgeRud wrote on Mon, 04 July 2011 12:32 |
If an intake is cracked, does filling the crossover repair it to a point that it is still serviceable?
Has anyone tried using the engine block filler that was discussed on the GMCnet a while ago?
It seemed like a good and easy way to solve the problem when used with the block off gaskets.
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George;
When I Broke Off The Thermostat Housing Bolts On The Edelbrock Performer Aluminum Intake
On My '78 Eleganza II And Had To Pull The Intake. I Found It Was Cracked In 5 Places ~
The Machine Shop Welded The Cracks And Filled The Exaust Grossover With Aluminun ~
They Did A Real Good Job ~ The Intake Manifold Fit Snug With The Mr Gasket #404 Intake Gasket ~
The Engine Runs Extremely Smooth And Quiet With No Vacuum Leaks, Intake Leaks Or Exaust Leaks ~
I Am Well Pleased With The IMPROVED Performance And Gas Mileage ~
~ Joe ~
{ Scroll Down To See The Fill job }
https://www.facebook.com/media/set/?set=a.1697369155175.2087795.1266255830&l=259797f926
/_]*[__][] *[__|] ~ * '73 TZE063V101887 "
"
O----------OO--]* ~ '78 TZE168V100234 "
"
" Joe & Lavelle " "
"
'sweet home alebamy'
[Updated on: Mon, 04 July 2011 23:20] Report message to a moderator |
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| Re: Intake Badness [message #133334 is a reply to message #133193] |
Mon, 04 July 2011 20:33 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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It's all the issues I've read about the rockwell intake. Poor fit, problems with the Fuel Injection bosses interfering with the carb linkages, which gaskets to use, port size mismatch, yadda yadda, that has me on the fence for this very expensive part. I don't want to buy it and have to screw around with it several times, or watch my oil consumption like a hawk.
Has anyone tried welding the cracks in the OEM intake?
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: Intake Badness [message #133377 is a reply to message #133295] |
Tue, 05 July 2011 08:59 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| GeorgeRud wrote on Mon, 04 July 2011 12:32 |
If an intake is cracked, does filling the crossover repair it to a point that it is still serviceable?
Has anyone tried using the engine block filler that was discussed on the GMCnet a while ago? It seemed like a good and easy way to solve the problem when used with the block off gaskets.
|
The answer to question #1 is YES and that is what we use to do before Gary's aluminum manifold became available. Now Gary's manifold eliminates the crossover completely and resolves the problem. There are probably 100 of them out there installed and working very well. Jim K., Cinnabar, other GM suppliers, and Gary have sold many of them. It is an excellent solution to a old problem.
I remember Ken H. doing a demonstration filling a manifold with hot metal at one of the Eastern states rallies quite a few year back. At one of the Ohio work rallies we had another demo filling the manifold with a cold fill. Larry Weidner took his to a local foundry and had his filled by heating the entire manifold. Jim Bounds use to fill them at his shop frequently. All of these worked but the Rockwell aluminum manifold made these procedures a thing of the past.
Ken H. did try the plugs in the exhaust ports and reported after a few years that they loosen up and did not work. I had my manifold off several years ago and it was not cracked so I all I did was to install the blocking plates. So I have no first hand experience in pouring the manifold on my own coach.
I do not know of anyone that has used the engine block filler yet. Even if they did, you would have to wait for a couple of years and many thousand miles to see how it worked.
If I had a cracked intake manifold I would buy the Gary Rockwell manifold and install it. If I had a good manifold I would install the crossover blocking plates NOW.
Ken
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Intake Badness [message #133385 is a reply to message #133193] |
Tue, 05 July 2011 10:35 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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I've read that some of the poured solutions "disappear" after a while. (Melt and burn away, presumably)
If there are 100 Rockwell manifolds out there, then the NRE should be paid off and we should be able to get these things a bit cheaper now, wouldn't you think? That's $65K worth of revenue. Not bad return on a hobby if I understand the origins correctly.
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: Intake Badness [message #133389 is a reply to message #133385] |
Tue, 05 July 2011 11:32 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| Chr$ wrote on Tue, 05 July 2011 11:35 |
I've read that some of the poured solutions "disappear" after a while. (Melt and burn away, presumably)
If there are 100 Rockwell manifolds out there, then the NRE should be paid off and we should be able to get these things a bit cheaper now, wouldn't you think? That's $65K worth of revenue. Not bad return on a hobby if I understand the origins correctly.
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Chr$,
I know what you are thinking, but you are wrong. When you look at the complete spread sheet, I bet the only one that has made money on this are the casting and the machining house. But at these volumes, there is not that can be done to reduce the cost.
Personally, I think the price is not out of line for a prototype volume part. Time was I bought a lot of parts this way and you would not believe the tooling/casting/machining costs.
If somebody will buy the beer, I will reveal actual the cost of the prototype parts in lots of about 100.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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