Base gasket preparation?

[d2w]

Folks,

Should the base gasket (0.50mm used between the cylinder and the cases) be applied:
1) Dry?
2) Oiled?
3) Greased (with, say, Bel-Ray High Temp Assembly Lube)?
4) Something else?

Thanks.

Dale

[Dave]

I've used all four over the years (#4 being anti-sieze). Sealing has never been an issue with any method, but #4 gives the best results when it's time for disassembly.

[grsha]

cooper coat works real well and easy to take off on next rebuild.

[Treesmacker]

Dry for me!

[JTT]

Hylomar for me...but I run only the .15 gasket

[GMP]

Hylomar for me...

Thats exactly what I use, works good.

[PEB]

Is it safe to just run the .15 gasket? My head is stock with plenty of extra squish, seems like the thin gasget could take up some slack. It seems that I have 3-4 of them from old gasket kits. Any thoughts?


Paul B

[JTT]

Originally Posted by PEB

Is it safe to just run the .15 gasket?

I've run mine this way for 2 yrs now with no problem. Still excessive squish but better. I'd definitely suggest a good sealer though as there's little "seal" in that .15 gasket.

Just for interest, we used to run racing 80 and 125 MXers with no base gasket, only Hylomar.