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Print in friendly format Send this term to a friend  Sheet Molded Compound
Also known as SMC.

This is the stuff that all C4 Corvettes are made of.

It’s similar to fiberglass, but much more durable.

The only issu...
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Re: Do I have to RTV the corners of the oil pan?

Subject: Re: Do I have to RTV the corners of the oil pan?
by SpectatorRacing on 2009/9/29 19:13:57

Quote:

CentralCoaster wrote:
Ok, maybe I'm just slow...

With the pan sitting on the garage floor... are you able to reach up there, even using a mirror and apply some RTV to those front corners on the block itself? Seems accessible from the photo, use your fingers.

Are you then able to get the pan+gasket installed and tightened down before the RTV sets up?

If you can't slide the pan in with the gasket on it without it getting knocked off, can you stick the gasket onto the block with this and then slide the pan in place?



Nope you're not slow. Those are good questions, all of which I've thought through. My original plan was to test fit the pan, then pull it out, RTV the gasket and the block, then slide the pan back into place before the RTV sets. Game over.

What I found was that it was extremely difficult to get the pan in at all. I was about to give up after about 30 minutes of trying when I got lucky and it slid into place. I did not want to take it out again because I'm afraid I won't find that magic spot again where it aligns and goes into place.

So I slid the gasket up there with the pan roughly in place, supported between the front crossmember and the bellhousing. Getting the gasket in was the tricky part, as I couldn't get the thick front radius of the gasket between the pan and the block - same main cap bolt is in the way. As I mentioned in the OP, this was where most of the fanangling took place. Eventually I got it in what seems to be the right location and loosely stuck in two bolts to hold it until I decided the next steps. If I tried to stick the gasket to the block it would most definately be knocked off when the pan was forced up there.

I can (and will) RTV the back corners, they're easy to get to. The fronts are not. I may be able to put some goo on my finger and apply, but it will be haphazard at best. I can't see in there at all, so it would be strickly by feel. I would rather have none at all than some in the wrong place that keeps it from sealing properly.

Pulling the motor up about 4 inches would probably give me enough room to do this easily, but I don't have a cherry picker. Starting from scratch, I would rent or borrow one and lift the motor. But at this point it's close enough to finish without.
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