Oil in heads.......?????
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On The Tree
Joined: Feb 2005
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From: Arnold, MO
Oil in heads.......????? 
I have got a good idea of whats wrong but alot of you guys have much more knowledge than me.First off the car would idle fine, but would not take any load what so ever. The motor was built wrong. It was supposed to be 11:1 but is somewhere south of 9:1, it was supposed to be NA with the possibility of spray. He used Diamond -8.6 cc dished pistons when I wanted flat tops w/valve reliefs. He used TRW rings on my diamond pistons, and he also used the Eagle 6.100 rods instead of the 6.125, gaskets are .054 felpro's, and the heads are TEA 5.3's milled .010. Motor only has 1,7xx miles since rebuild.
I pulled the heads off yesterday, and granted the PCV didn't look like it was in good shape, the heads were coated with oil, especially on the intake side, I mean covered, the intake also had a good amount of oil. The car never let out any white or blue smoke from the exhaust.
How bad is this, and what can I do to fix it. I don't have a high pressure pump, just an SLP Heavy Duty oil pump
Last edited by Blue Falcon; May 26, 2005 at 11:15 AM.
Thread Starter
On The Tree
Joined: Feb 2005
Posts: 100
Likes: 0
From: Arnold, MO
Valve stem seals looked good, I had them checked. Would PCV cause that much oil, there was alot.
Also, tons of people run with breathers instead of a PCV, correct? What kind of filters are you guys using for this?
Also, tons of people run with breathers instead of a PCV, correct? What kind of filters are you guys using for this?
Was the oil in the intake runners or in the combustion chambers? If it was in the intake runners then its likely coming in from the intake. The PCV is a good candidate there.
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If you have excessive crankcase pressure then you have a lot of blow by on those pistons. Either they didn't seat correctly, the rings have too much gap, or busted ring lands. Most likely it on of the first two. Try a leakdown test.
PCV and large ring gaps. You said he set you up for N2O right? Larger ring gaps are needed for N2O but they will blow by a tad more than stock rings. If you street drive a lot run the PCV with a catch can and put a breather in place of the oil cap. Disconnect and plug the fresh air PCV hoses and ports. Fresh air will now be drawn in from the breather on the oil cap.
