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Crankcase sealer

  • Thread starter Thread starter Hap Call
  • Start date Start date
H

Hap Call

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I'm about to put my cases back together. In the past, I've used Gasgacinch, but times change and better products may be out there...what are you guys using to seal your cases when you assemble the two case halves?

Hap
 
Re: Crankcase sealer

Hap Call said:
I'm about to put my cases back together. In the past, I've used Gasgacinch, but times change and better products may be out there...what are you guys using to seal your cases when you assemble the two case halves?

Hap
Click to expand...

Yamaha Bond #3 or #4(I'm not sure about the number), but I think it is #4. I'll check when I get home this afternoon. Good stuff BTW.
 
Yamabond is made by ThreeBond. Their #1104 is the same as Yamabond 4, in case your local dealer doesn't carry it under the name Yamabond.
 
Yamabond can seal anything, best gasket maker/sealer I have come accross, my TT's right side cover doesnt even have a gasket in it, just yamabond and it hasn't leaked in four years.
 
I went to the Yamaha dealer to find the Yamabond 4 and they had only Yamabond 5 and Yamabond 6A...what is the difference between the various Yamabonds? The guy behind the counter was clueless and all the mechanics had gone home for the day.

Hap
 
6S is a silcone sealant for engine enviroments, would be good for the end plugs on the cam cover and also the cam cover it's self.
6B is for exhaust pipes.
 
None of the three local Yamaha dealers have the Yamabond 4 and I can't find a ThreeBond dealer around here. :evil: It will be a week before the Beaumont dealer gets some in. :evil:


Hap
 
Crankcase sealer

Hap,

Eventhough you don't have a Threebond dealer around maybe the mail order (Parts Unlimited or Dennis Kirk) could find you some Threebond 1211 silicone liquid gasket.

It's white so use sparingly on black engine cases or actually anything. A thin uniform layer is best and careful not to squish it into the engine and clog up oil galleries. You probably already know that. I've sealed three engine cases with it. The best gasket sealer I ever used. It's also easy to remove and can be used on clutch cover gaskets and the like. I've reused torn gaskets with oil residue and smeared a thin coat over the gaskets with great success. Carter
 
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