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RS98GSX
07-12-2012, 12:24 PM
Hey guys.

If you read this thread http://www.mitsustyle.com/forums/showthread.php?t=31677&highlight=idle
Then you know what happened.... Anyway I got a Mitsu MLS 4 layer head gasket from MAP. My question is proper ways to seal it. I know all about decking both head and block, but some guys say to clean and lap the block. I also head some guys using copper spray, or using oil to seal, how does that work? What should I do.

Kracka
07-12-2012, 12:28 PM
Install it against a clean and dry surface.

RS98GSX
07-12-2012, 12:48 PM
ok so no need to machine or deck the head and block. Just make sure both sides are clean and dry?

Kracka
07-12-2012, 01:03 PM
If they're out, it's a good idea to have them checked/machined to ensure they're flat.

asshanson
07-12-2012, 01:04 PM
If your head warped when you blew the previous headgasket you should probably get it machined flat, or at least make sure it's flat with a good straight edge. Probably don't need to machine the block.

RS98GSX
07-12-2012, 01:39 PM
The head is completly level. I checked it with a straight edge and a feeler gauge. And just the head is out from when I melted my valve.

Goat Blower
07-12-2012, 05:20 PM
I put on a little copper spray, just for good measure, but yeah, clean surfaces and proper torque procedure.

RS98GSX
07-13-2012, 03:21 PM
Thanks guys