new heads and now oil leak....ventilation question - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
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Old 06-26-2012, 04:55 PM
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oil leak

When you pull the valve cover check underneath the breather cap that is where the baffle should be. It is a metal shield to keep oil from splashing up to the breather cap. Check out Summit racing for some baffled grommets if not baffled. http://www.summitracing.com/parts/MOR-68775/

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Old 06-27-2012, 09:40 AM
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Well I pulled the passenger valve cover and verified there is a baffle. I did notice some excess oil on the back side, so I am hoping maybe the gasket just wasn't sealed correctly. As mentioned these are the reusable rubber kind, and are kind of a PITA to put on, as you have to stretch them a bit. I got it back together and cleaned it up, but couldn't do a test run. I am hoping this was the issue, otherwise I may start leaning towards the rear main =(

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Old 06-27-2012, 09:42 AM
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Quote:
Originally Posted by cdminter59
When you pull the valve cover check underneath the breather cap that is where the baffle should be. It is a metal shield to keep oil from splashing up to the breather cap. Check out Summit racing for some baffled grommets if not baffled. http://www.summitracing.com/parts/MOR-68775/

Should the grmmet for the PCV valve be baffled? I believe it's just a normal grommet that is in there currently.
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Old 06-27-2012, 09:51 AM
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Quote:
Originally Posted by SoCa06Z
Should the grmmet for the PCV valve be baffled? I believe it's just a normal grommet that is in there currently.
As long as there is a baffle in the valve cover where the PVC valve goes you are fine.
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Old 07-02-2012, 04:20 PM
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re-installing the passenger valve cover seemed to help. There is still a leak somewhere, but not nearly as bad. I am kinda suspecting the rear main since there is oil on the starter
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Old 07-02-2012, 05:52 PM
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Those valve covers are not bottoming out on the intake are they? Were they on the motor before?
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Old 07-06-2012, 01:35 PM
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Well I replaced the breather and the oil plug and it seemed to fix the issue. There is still a small drip that I need to find, but this was the bulk of the problem. I think the breather was actually OK, but the plug was the culprit.
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Old 07-06-2012, 09:44 PM
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Had oil and coolant leaking on buddy's 350 engine after swapping from smogger to vortecs. Finally found it to be the block dowel pegs that position heads was sticking up too high and w/ head torqued it caused the leaks. Had to remove that head, grind/ hacksaw down some and reinstalled w/ another new gasket and problem fixed.
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