Damn Oil leaks under intake manifold (pics)

5054 Views 19 Replies 16 Participants Last post by Skywalker, Feb 10, 2006

Siccished

Discussion Starter · Feb 4, 2006

I have the SAME leak on both of my mr2's (3sgte's).
The only thing i can think of is the big rubber hose/ smaller vaccume lines have oil in em and are spewing it out OR my valve cover is leaking out oil and its dripping through the small open area that the intake manifold has in it.

Im SURE others have had the same leak, so i wanna hear if anybody has found a remedy to this problem.

Picture the car jacked up and ur lying on ur back and looking past the rear crossmember. (block is at top)

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Dedicated-Matt

· #2 · Feb 4, 2006

VALVE COVER!!! Get a new gasket and allen style bolts from twos R us

Siccished

Discussion Starter · #3 · Feb 4, 2006

1fastsol said:
VALVE COVER!!! Get a new gasket and allen style bolts from twos R us

Ill be getting hex bolts and tightening them down with a closed end wrench. i dont like allen wrenches..

thx for the reply

Byron

· #4 · Feb 4, 2006

Is there oil on the bottom of the distributor? The distributor shaft seal will leak oil there also.

Siccished

Discussion Starter · #5 · Feb 4, 2006

Byron said:
Is there oil on the bottom of the distributor? The distributor shaft seal will leak oil there also.

1 car has a leak and the other doesnt ;-)

mk1boam_edt

· #6 · Feb 4, 2006

i have that leak too, i believe its the dist oring.

motoman

· #7 · Feb 4, 2006

-pix don't work
-I just recently changed my valve cover gaskets and oil distributor o-rings. I'm curious to see the pix where your leaks coming from

junglist

· #8 · Feb 5, 2006

ok if its not the distributor o ring or valve cover gasket, chances are, its the middle stud that holds on the intake manifold...this goes straight through to an oil return passage in the cylinder head..you need to take the stud out, and use teflon tape or gasket sealer on the stud when you put it back in.

RWDforlife

· #9 · Feb 5, 2006

1fastsol said:
VALVE COVER!!! Get a new gasket and allen style bolts from twos R us

whats the website to twos R us to get the allen style bolts? anyone?

Turbo beast

· #10 · Feb 5, 2006

www.twosrus.com

Kurdain

· #11 · Feb 5, 2006

Is there any trick to get to the rear valve cover bolts without pulling throttle body? I hope there is because I am sure thats where my leaks are coming from and I just put in a new alternator that oil destroyed....

motoman

· #12 · Feb 6, 2006

Even after replacing the valve cover bolts, I had the same leak as Siccished.
-Strangely enough, when I replaced my distributor o-rings w/ the k-box kit; my oil leak was gone under there.
-I'm only guessing the the oil was creeping down and around (aided by wind currents through the engine bay, at highway speeds) and under my intake manifold.
-Replacing the k-box kit was easier than the horror stories most people post about. (surprisingly)

dsw20t

· #13 · Feb 6, 2006

Kurdain said:
Is there any trick to get to the rear valve cover bolts without pulling throttle body? I hope there is because I am sure thats where my leaks are coming from and I just put in a new alternator that oil destroyed....

I'm not sure if anyone has a trick, but I did have to loosen the Throttle body out...though I don't recall having to disconnect every pieces. I simply pulled out what I needed to reach whatever bolt I was going for. In sum, no tricks.

Pro-Fab

· #14 · Feb 9, 2006

Just remove tyou r throttle body its not that hard and it takes 5 minutes.

Siccished

Discussion Starter · #15 · Feb 9, 2006

Ok guys,

Valve cover bolts/screws/allen bolts/fasteners ALWAYS get loose after being ran for a few cycles. I want to put the lowest grade loctite on the valve cover bolts to prevent the damn things from going loose. If anything i just want to the rear bolts from coming loose & having to be retorqued.

What color/grade loctite should i use?

[email protected]

· #16 · Feb 9, 2006

Blue comes off easily but holds well.

Hsun Chen

· #17 · Feb 9, 2006

Justin311 said:
Blue comes off easily but holds well.

But no Loctite will work on oily threads, so you'll need to clean them out first if you want it to hold. Loctite even makes a cleaner/activator specifically for this purpose - it's called Kleen-N-Prime.

bufferdan

· #18 · Feb 9, 2006

I have the same oil leak...put a new valve cover gasket and twosrus allen bolts and still have the same leak. I guess its my dizzy seal...oh well, i just leave it cause its not bad.

anthonyonions

· #19 · Feb 9, 2006

man, mine was real bad... never knew were it came from though...

Its been a right messy job tryin to clean the parts up!

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Skywalker

· #20 · Feb 10, 2006

Big plastic box. Brush, and 3 litres of petrol. That'll clean an engine :thumbup

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