Another Oil Pan thread.

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Matt01
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Another Oil Pan thread.

Post by Matt01 » Tue Nov 01, 2016 9:45 pm

So now I've installed my new clutch kit, rear main seal, oil pan gasket, and it still leaks oil from the rear. Its the second Fel Pro gasket I've used on the oil pan, and they both seem to leak.

I guess the next step is to just silicone both sides of the gasket all around and see what happens?
I wish they made metal formed gaskets for it.. Which gasket is best?

Im sick of it leaking oil from there.

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Re: Another Oil Pan thread.

Post by merkurdriver » Tue Nov 01, 2016 11:41 pm

Sure its not the rear main seal leaking and running down?
The rear main seal seems to be a lot more prone to leakage when replaced vs. oil pan gasket.
I've seen more than one 2.3T engine come back from a full rebuild at the machine shop and have a leak out the rear main seal...

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Re: Another Oil Pan thread.

Post by Ed Lijewski » Wed Nov 02, 2016 7:04 am

Oil pressure light switches leak too.

YMMV ;)
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Re: Another Oil Pan thread.

Post by Ed Lijewski » Wed Nov 02, 2016 7:05 am

He said he replaced the rear main seal.
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Re: Another Oil Pan thread.

Post by my8950 » Wed Nov 02, 2016 4:28 pm

If you cant see where its coming from specifically, go to your parts store and get the oil dye.
Then you need a black light and it will glow.
Pretty cool, helpful when trying to find leaks.

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Re: Another Oil Pan thread.

Post by Matt01 » Wed Nov 02, 2016 7:53 pm

Well basically I did change the rear main, I cleaned it all up real well when I changed it, I can see that the oil is coming from above the arch from the crank its running down the pan side of the aluminum piece, not the inside. I pulled off the plasic clutch cable cover and looked inside and all of that looks dry too.

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Re: Another Oil Pan thread.

Post by merkurdriver » Wed Nov 02, 2016 8:25 pm

Ed Lijewski wrote:He said he replaced the rear main seal.
I've seen lots of leaks after replacing the rear main seal. Fresh builds from the machine shop with a new rear main and leaks...leaks...leaks...

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Re: Another Oil Pan thread.

Post by my8950 » Wed Nov 02, 2016 8:52 pm

I haven't done a rear main on these engines, but I know I had a leak on my 302 after rebuilding. I was totally bummed.
The block I used is older and has a 2 piece rear main, after researching, I found that many people have the same issue.
They end up RTV'ing the crap out of it, I did this and it worked out well.
I'm not sure if you can do the same on a one piece rear main though, but some RTV cant hurt.

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Re: Another Oil Pan thread.

Post by merk23literturbo » Thu Nov 03, 2016 9:23 am

You have to remove the rear main cap and RTV the corner/edge where the block and cap meet. That will leak every time if it doesn't have sealer. This step is outlined in the shop manual.
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Re: Another Oil Pan thread.

Post by merkurdriver » Thu Nov 03, 2016 10:36 pm

merk23literturbo wrote:You have to remove the rear main cap and RTV the corner/edge where the block and cap meet. That will leak every time if it doesn't have sealer. This step is outlined in the shop manual.
( x 2 )

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Re: Another Oil Pan thread.

Post by Matt01 » Fri Nov 04, 2016 2:05 pm

merk23literturbo wrote:You have to remove the rear main cap and RTV the corner/edge where the block and cap meet. That will leak every time if it doesn't have sealer. This step is outlined in the shop manual.
i think thats only for the early models.

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Re: Another Oil Pan thread.

Post by merk23literturbo » Fri Nov 04, 2016 6:36 pm

i think thats only for the early models.
I don't think so, It's in a late 88 shop manual.There is no difference between the blocks except the one vs three piece oil seal.
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Re: Another Oil Pan thread.

Post by Matt01 » Sat Nov 05, 2016 11:21 am

Ill post up some pictures later, looking at the pictures, I think i see what you mean now, there IS a joint there between the block and the loop around the crank.

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Re: Another Oil Pan thread.

Post by Matt01 » Sat Nov 05, 2016 7:44 pm

i can see the line where the 2 attach, was not aware of that
Image

anyway here is the "new" gasket we made
Image

and heres the problem we found
Image

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Re: Another Oil Pan thread.

Post by Mike McCreight » Sat Nov 05, 2016 8:16 pm

That never happens when you dry-fit a gasket.
What a mess. I think I heard your "DOH!" all the way from Montreal.
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