Sealing crankcase halves

[Mark71gtx]

I am about to split my first crankcase soon to replace bearings. My question is, when using the case gasket, do you put any type of sealant on it, or leave it dry? Does it matter by manufacturer or model, or is it pretty much the same thing with all saws? If it matters it will be a Stihl 650, soon to be a 660.

 

[Gunn]

I Dirko my gasket but it's not required. I just like the added insurance it'll seal up so I don't have to split the saw to replace the gasket.

 

[Frank bierce]

From what I have seen, it is fine either way...a little bit of sealer for added peace of mind I guess.

 

[beaglebriar]

Sealant along with the gasket will keep it leak free. I'm considering splitting my 562 because it leaks bar oil like a sieve and it drives me crazy.

 

[jacob j.]

Some saws like the 084 have long runs in the case where the gasket is thin and frequently fails (like just under the muffler). So adding some sealant there is a good idea.

 

[three feathers]

Three Bond 1194