Rear Main Housing to Block Gasket?

[DeNoZZo]

Does anyone know what I should use to seal the Rear Main housing to the block? I asked around at the dealerships service depts. and they pretty much had no clue. I have heard of people using RTV, can anyone testify?

 

[xI Dsmman Ix]

If you use RTV, you better make sure it hardens before everything goes back together.

 

[doubleclutch99]

how about the right gasket. the one that looks like a horse shoe. just a thought

 

[19Eclipse90]

Yes, use RTV. Be sure to keep oil away as long as required for the RTV cure. The Mitsubishi sealant is MD970389 if you want to get it from the dealer, but any equivalent is fine.

how about the right gasket. the one that looks like a horse shoe. just a thought

Oddly enough, neither the FSM nor CAPS show a gasket for it. The strange differences between 1Gs and 2Gs.

 

[doubleclutch99]

i guess thats what i get for assuming. mine came with the conversion gasket set for the lower end. but then again mine is a 1g. with that in mind use carb cleaner to clean the surface and apply a thin layer of rtv and let dry thoroughly.

 

[turbosax2]

6 bolts use a gasket (MD183243). 7 bolts use RTV.

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[19Eclipse90]

Good info, Eric. Thanks for posting that!

 

[DeNoZZo]

What type of RTV should I get?

 

[ktgurl87]

we actually have a "transfer case, transmission, etc." RTV back in commercial where i work. i would look for something like that. it's like super resistant to tranny fluids and oils

 

[Colt4G63 also]

I've had that gasket fail before. It cracked and slid out a little. Bad for the clutch.

The instuructions in the Felpro gasket set specifically call for a brush tack type of sealer. I used a product called "Hi-Tack" that's red and comes in a can with a brush. It's probably the best thing you can use on that little paper gasket. It's super sticky, and when it cures it will never delaminate from the metal like RTV does.

 

[19Eclipse90]

The seal should never come into contact with any fluid other than engine oil and, again, there is no gasket.

I would use black or grey. I used black for my oil pan and it works great, so there isn't any reason it won't work for the rear oil seal cover.