Heads/cam are on and the car runs fine. However, when I hit the throttle, oil shoots out of the dipstick. My intake manifold bolt holes had to be drilled out to fit on the heads. However, they ended up having to be drilled quite a bit and I don't think the intake manifold ports are seated against the head ports at the bottom of the port.

Here are my thoughts - if the heads are milled (not sure how much they were milled...I e-mailed Lloyd) enough to cause the intake manifold not to fit, the intake manifold needs to be milled (I presume). Given this and the fact that my intake manifold wasn't milled, the ports on the intake/head aren't fully seated against one another...leaving a gap for the incoming air to leak through, pressurizing the lifter valley/crankcase, in turn causing the oil to shoot out the top of the dipstick.

If there is something else I'm not thinking of that could cause this, let me know.

The only other thing I can think of would be a PCV issue, but I replaced the PCV valve and still have the problem.

Any suggestions are welcomed.

 

have you checked your pcv system to see if its functioning properly?

 

Yes, and it's working.

 

I don't think that would pressurize anything...unless it was forced induction (which it isn't). The manifold has lower pressure (vacuum) and thus would lower the crankcase pressure if anything, but I doubt that has anything to do with your problem. I think the manifold is fine.

As for the oil shooting out the dipstick, I guess I'm out of ideas. TTT, hopefully someone else knows.

 

Yea, that would cause a vacuum leak, and make the engine run like crap. Its probably bad pcv system, or your engine is dusted. How did the cylinders look when you had the heads off? How many miles on engine?

 

Well with 1500 miles the rings should be well seated and most likely not a blowby problem. Have you done a leakdown test?

Steve

 

Yes, has 1500 miles on it. I didn't have this problem before swapping the new heads/cam on.

 

Breather on the valve covers might help?

It definalty should not be blowing out out of there. You should be able to pull the dip stick on a running engine and not make a mess.

How much higher is the compression on the new heads?

If you had blow by, and then raised the CR, your going to have worse blow by, which could cause that.

It still shouldnt blow oil out though. If the oil is splashed around that violently in there, I would be concerned with if the oil is getting to where it should be.

 

Not sure why a breather in place of the PCV tube would help. From what I've read, it's best to have a closed PCV system.

Upon some more reading, I think I may have over-filled the Canton pan. We put nearly 7 quarts in it, and from what I've been reading, the consensus for its capacity seems to be 6 quarts.

I've been messing w/the PCV system, and while doing so, the oil coming from the dipstick is much less. I'm wondering if I'm getting closer to the 6 quarts as more oil continues to splash up and out the tube.

 

OoOo.

I thought it may have had too much oil in it. I seen that happen once when I worked at grease monkeys.

I suggested the breather that way you can eliminate the PCV system as a problem. I have read the same as you though that it is betterto have a closed system.

I just never thought to post it. I figured if you had a 396 and all that, you were probably **** about your car like everyone else on here and positively put the correct amount in it.

Too much oil could for sure do that though. Or at least 5 qt's in a Geo Metro did lol.

 

Well, I am pretty **** about stuff like that. I ran 6.5 qts in the car before the heads/cam swap without any problem. My buddy filled it up while I was working on other stuff. I told him to put 6.5 qts in, but he ended up putting about 6.8 qts in. I'll change the oil today and fill it with less oil and see if that fixes this. Thanks.

 

O ok. Good luck with things. Hope that fixes your problem.

 

Does Lloyd mill the intke once the heads are milled to make sure that they sit properly?

Once the heads are milled, they would sit lower than they would stock, so now the unmilled intake would sit a bit higher, and this would cause a seating problem, right?

Just trying to see if thats the case, cause I am about ready to send my heads to Lloyd.

 

My LE2 heads were milled, and the intake fit perfect.

 

The heads I got from Lloyd had been milled before. Lloyd milled them .010" and I'm sure they were milled at least that much before. If your LEX heads haven't been milled, you should be fine.