Re: HEMI: Intake to Heads Oil Leak
[Re: B G Racing]
#1420317
04/17/13 01:37 PM
04/17/13 01:37 PM
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Joined: Apr 2006
Posts: 3,675 Akron, Ohio U.S.A.
roadhazard
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master
Joined: Apr 2006
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Akron, Ohio U.S.A.
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Quote:
Greg,(Superformance) make .030 and.060 gaskets.
Thanks Bob
Everything is listed in our new catalog. Click the link in my signature
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Re: HEMI: Intake to Heads Oil Leak
[Re: roadhazard]
#1420318
04/17/13 03:25 PM
04/17/13 03:25 PM
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Joined: Mar 2006
Posts: 9,910 Eighty Four, PA
B G Racing
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
Quote:
Greg,(Superformance) make .030 and.060 gaskets.
Thanks Bob
No thanks needed,thank you for some great gaskets and great customer service.
Everything is listed in our new catalog. Click the link in my signature
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Re: HEMI: Intake to Heads Oil Leak
[Re: B G Racing]
#1420319
04/17/13 10:24 PM
04/17/13 10:24 PM
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Joined: Apr 2006
Posts: 3,675 Akron, Ohio U.S.A.
roadhazard
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master
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
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Quote:
Quote:
Quote:
Greg,(Superformance) make .030 and.060 gaskets.
Thanks Bob
No thanks needed,thank you for some great gaskets and great customer service.
Everything is listed in our new catalog. Click the link in my signature
Hey Bob, if we didn't offer a great product with competitive prices and great service we'd just be considered a government entity
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420322
04/19/13 10:41 AM
04/19/13 10:41 AM
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Joined: Apr 2005
Posts: 1,509 TN
SCATPACK 1
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Dom What heads are you using? Is it possible to use a valley tray that would seperate the intake and lifter galley.
Old Geezer Racing
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420324
04/19/13 10:54 AM
04/19/13 10:54 AM
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Joined: Mar 2006
Posts: 9,910 Eighty Four, PA
B G Racing
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Quote:
still leaking....when i take the carbs out I can feel "oily gasoline" on the intake to heads joint, and puddling on the intake valves that remain closed....its not just gasoline.
I would look for another issue,it could be a valve, ring or piston problem.If you want to check the gasket seal you can spray a libral amont of light oil(WD-40) in the intake and make plates to cover the carb holes and put an air valve in one,remove all the pushrods to make sure all valves are closed and carefully charge the intake(it only takes a few pounds of air for this).You can view the underside of the intake with a borescope ,mirror or other means for a fine mist if the gaskets leak.This sound like a lot of effort,but it will determine if that or something else is the issue.We had a Hemi that put oil in the intake and it turned out that it had one piston that had detonated and hurt the ring lands and rings.Another thought you might try is put a borescope in each sparkplug hole and check the condition of each piston. I'am throwing out suggestions since everything you have tried so far hasn't solved your problem.
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420325
04/19/13 12:14 PM
04/19/13 12:14 PM
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Joined: Jan 2003
Posts: 13,492 Marion, South Carolina [><]
an8sec70cuda
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Did you put thread sealer on the inner row of head studs that thread into the bottom of the intake ports?
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: HEMI: Intake to Heads Oil Leak
[Re: an8sec70cuda]
#1420326
04/19/13 12:57 PM
04/19/13 12:57 PM
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Joined: Apr 2005
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Run it through a couple of heat/cool cycles and re torque or tighten the intake bolts again. then run it again and se if it is still doing it. When you pull the intake and look at the gaskets, do they look oily anywhere on the gaskets? Problem may not be the gaskets if you have tried all of this.
Old Geezer Racing
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420327
04/19/13 01:55 PM
04/19/13 01:55 PM
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Joined: Mar 2006
Posts: 2,686 Mt. Eden Ky.
Hemi Allstate
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I had the same problem and symptoms on a Hemi with those same MP heads. I finally pulled the valve spring off an intake valve and was able to move the valve side ways .004" .005". The guides were way too loose. These were a new set of heads too. I would think that Modern would catch this on your engine though as that is who fixed mine. Once the guides were repaired all was good. I have been told the factory guides are oversize and soft.
1996 Ram 1500 Sport 1968 road runner 1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420329
04/19/13 06:33 PM
04/19/13 06:33 PM
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Joined: Jun 2009
Posts: 1,212 QLD Australia
Keith Black®
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If you're pulling the heads anyway , get Tim to machine the intake side for O-rings. He's just done my heads I'll post pictures later.
-------------------------------- Darren Beale Keith Black Racing Engines®
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420331
04/23/13 03:28 AM
04/23/13 03:28 AM
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Joined: Jun 2009
Posts: 1,212 QLD Australia
Keith Black®
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yep I understand Dom. here's some pictures anyway I figured it would be worthwhile as some of the members on here indicated similar problems to what you're having. hope it works on my build
-------------------------------- Darren Beale Keith Black Racing Engines®
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Re: HEMI: Intake to Heads Oil Leak
[Re: domingo]
#1420334
04/24/13 09:24 AM
04/24/13 09:24 AM
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Joined: Mar 2006
Posts: 9,910 Eighty Four, PA
B G Racing
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Quote:
those look great.
I suspect it might be sucking some from the threads on the inner valley bolts. Like Chip suggested Im gonna use some thread sealer in there....
Im also gonna use some penetrating locktite sealer on the pushrod sleeves.
and when the heads are out check vave guide clearance and valve seals...
Another thing to check is crankcase ventilation,if it's not vented enough or has high crankcase pressure, the crankcase pressure along with cylinder draw can push and pull oil into intakes,bolt threads and other areas that wouldn't normally see oil.
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