| [GMCnet] Removing Valve cover/ oil pan baffles [message #328615] |
Fri, 26 January 2018 00:39  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
|
Senior Member |
|
|
I'm not happy about not being able to say that the backside of these baffles are 100% PERFECTLY clean for the rebuild of this 403. This 403 oil pan has some rust on the inside. I've just never run into this before. If there is contamination inside the baffles. There's just no way to get it out using normal block cleaning methods. So has anyone removed these baffles for cleaning? Then reinstall. As I've said. I get real anal over cleanliness on engine assembly. When I assemble an engine. My shop that I keep our GMC in. I turn on it's air filtration system 12 hours before assembly. Then do all assembly with paper coveralls, and on white paper. I've never lost a bottom end of any race engines/ driver I've built. This cleanliness just pays off. Bob Dnahugh
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328642 is a reply to message #328615] |
Sat, 27 January 2018 09:59  |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
|
Senior Member |
|
|
Probably spot-welded together...don't know that you will be successful at separating them intact. Reassembly could also result in weld spatter in places you can't get to afterward. Maybe a long dip in diesel fuel and ATF will clean stuff out of those areas (won't do a thing for rust), but if you are really going for the cleanest parts it would make sense to put on some brand-new aftermarket covers, possibly in chrome.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
[Updated on: Sat, 27 January 2018 10:00] Report message to a moderator |
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328646 is a reply to message #328645] |
Sat, 27 January 2018 12:01 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
|
Senior Member |
|
|
I concur with Ken Henderson. Most of the time, aftermarket valve covers do
not come with breathers or baffles, just holes that don't fit OEM grommets
very well.
As for the oil pan windage shields, the only way I have used is to
grind or drill out the spot welds, clean religiously, then either spot
weld or button weld them back in with a wire feeder. Don't leave them out.
The factory would not have put them there without good reason.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Jan 27, 2018 9:41 AM, "Ken Henderson" wrote:
> I've never found aftermarket covers with baffles.
>
>
> Ken H.
>
> On Jan 27, 2018 10:59 AM, "Terry" wrote:
>
> ...If you are really going for the cleanest parts it would make sense to
> put on some brand-new aftermarket covers, possibly in chrome.
> ...
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328647 is a reply to message #328646] |
Sat, 27 January 2018 12:06 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
|
Senior Member |
|
|
The more recent ones do have a small baffles and it seems to be effective,
but not as good as origional.
On Sat, Jan 27, 2018 at 10:01 AM, James Hupy wrote:
> I concur with Ken Henderson. Most of the time, aftermarket valve covers do
> not come with breathers or baffles, just holes that don't fit OEM grommets
> very well.
> As for the oil pan windage shields, the only way I have used is to
> grind or drill out the spot welds, clean religiously, then either spot
> weld or button weld them back in with a wire feeder. Don't leave them out.
> The factory would not have put them there without good reason.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
> On Jan 27, 2018 9:41 AM, "Ken Henderson" wrote:
>
>> I've never found aftermarket covers with baffles.
>>
>>
>> Ken H.
>>
>> On Jan 27, 2018 10:59 AM, "Terry" wrote:
>>
>> ...If you are really going for the cleanest parts it would make sense to
>> put on some brand-new aftermarket covers, possibly in chrome.
>> ...
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328694 is a reply to message #328669] |
Mon, 29 January 2018 18:59 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Put a nozzle in your hi-pressure that shoots out a single straight stream and blast the hell out of the area between the pan and the
baffle.
Direct the flow from the "outside" towards the slot and see what comes out.
http://www.gmcmhphotos.com/photos/mechanical/p58370-oil-sump-pan-pickup.html
Then direct the flow the other way.
I reckon that any contamination that doesn't come out with the high pressure blast won't come out while the engine is running.
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bob Dunahugh
Sent: Monday, January 29, 2018 4:39 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Removing Valve cover/ oil pan baffles
The majority of oil pans that I've dealt with over a lot of years have been quit clean. This has been due to the turbulence
created by the rotating mass. The build up of material on the very bottom comes out well with solvents. Lots of lead build up from
the days of leaded fuels. Pans with rust inside, or pans from engines that had heavy crankshaft damage. They've been unusable to
me. BUT. Now I need to figure out how to get this oil pan acceptable to use. (As this nice 403 came out of a running 78 Olds wagon.
The pans been laying around. ) I need to pull the baffle. Clean. Then braze back in. The lack of extreme cleaning is the reason for
rebuilt engine failure. Bob Dunahugh
I'm not happy about not being able to say that the backside of these baffles are 100% PERFECTLY clean for the rebuild of this
403. This 403 oil pan has some rust on the inside. I've just never run into this before. If there is contamination inside the
baffles. There's just no way to get it out using normal block cleaning methods. So has anyone removed these baffles for cleaning?
Then reinstall. As I've said. I get real anal over cleanliness on engine assembly. When I assemble an engine. My shop that I keep
our GMC in. I turn on it's air filtration system 12 hours before assembly. Then do all assembly with paper coveralls, and on white
paper. I've never lost a bottom end of any race engines/ driver I've built. This cleanliness just pays off. Bob Dnahugh
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328697 is a reply to message #328694] |
Mon, 29 January 2018 21:00 |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
|
Senior Member |
|
|
USAussie wrote on Mon, 29 January 2018 18:59Put a nozzle in your hi-pressure that shoots out a single straight stream and blast the hell out of the area between the pan and the
baffle.
Direct the flow from the "outside" towards the slot and see what comes out.
http://www.gmcmhphotos.com/photos/mechanical/p58370-oil-sump-pan-pickup.html
Then direct the flow the other way.
I reckon that any contamination that doesn't come out with the high pressure blast won't come out while the engine is running.
Regards,
Rob M.
The Pedantic Mechanic
My pressure washer allows for the use of soap with the pressurized water... as do most high pressure washers. Why not add a little soap to the mix. Would help cut the oil under the baffles. Then shut off the soap and rinse with just water. Might work even better if you could take water right out of the hot water heater. Hot water and soap, and a hot water rinse (which evaporates quicker with no rusting) might really work! Maybe then blow dry with compressed air. Good idea Rob. I'm gonna remember this one.
Just what I think....
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
[Updated on: Mon, 29 January 2018 21:04] Report message to a moderator |
|
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328701 is a reply to message #328697] |
Mon, 29 January 2018 21:32 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
|
Senior Member |
|
|
Take the valve covers to your nearest carwash place. Start with concentrated soap, let soak for a few minutes, then run the high pressure (with soap) wash, then high pressure rinse. Repeat as necessary. Finish with the "spotless" mineral-free final rinse. Let dry in the sun. Reinstall.
D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Larry
Sent: Monday, January 29, 2018 21:00
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Removing Valve cover/ oil pan baffles
USAussie wrote on Mon, 29 January 2018 18:59
> Put a nozzle in your hi-pressure that shoots out a single straight stream and blast the hell out of the area between the pan and the
> baffle.
>
> Direct the flow from the "outside" towards the slot and see what comes out.
>
> https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.gmcmhphotos.com%2Fphotos%2Fmechanical%2Fp58370-oil-sump-pan-pickup.html&data= 02%7C01%7C%7Cc1239998af4742c07d2108d5678daff6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636528780594331886&sdata=Xi2gWBIT8jyvJv4dUOqeEOtc8M5xqV eSYUTj6GJ7%2BmA%3D&reserved=0
>
> Then direct the flow the other way.
>
> I reckon that any contamination that doesn't come out with the high pressure blast won't come out while the engine is running.
>
> Regards,
> Rob M.
> The Pedantic Mechanic
My pressure washer allows for the use of soap with the pressurized water... as do most high pressure washers. Why not add a little soap to the mix.
Would help cut the oil under the baffles. the shut off the soap and rinse with just water. Might work even better if you could take water right out
of the hot water heater. Hot water and soap, and a hot water rinse (which evaporates quicker with no rusting) might really work!
Just what I think....
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flist.gmcnet.org%2Fmailman%2Flistinfo%2Fgmclist_list.gmcnet.org&data=02%7C01%7C%7C c1239998af4742c07d2108d5678daff6%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636528780594331886&sdata=fdJBRzxyT%2Fqj2T6ibR4UIyvZQcYma3dEFacPf%2F7 mrm8%3D&reserved=0
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
| Re: [GMCnet] Removing Valve cover/ oil pan baffles [message #328719 is a reply to message #328698] |
Tue, 30 January 2018 19:37 |
palerider
Messages: 35
Registered: September 2013
Location: Kingsland , Texas
Karma: 1
|
Member |
|
|
|
Bob, I de-grease with a good carb cleaner, hot water, seal the covers,(or pan) pour enough apple cider vinegar to flood, slosh , let sit, slosh. The metal will be brand new. I've did this many times om old pans and covers .....Tom
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
