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#458992 10/16/12 10:46 am
Joined: Sep 2012
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Hi All,

Is there a particular sealant that works well on Goldie crank cases?

My first choice is Wellseal or maybe use Wurth Grey Silicon, which i have used on many other projects with great success.

Before i put the crank cases together i am going to put some sealant on 2 of the studs for the sump plate. These are the ones that have their holes drilled / tapped alway through the casing and apparently oil can can find it's way down their threads.

I am also going Loctite and seal in the 4 head studs (new Pearson s/s ones).

Any other tips before the cases go together will be welcome.

Regards

Mike.


Mike.



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I've had good results using "Yamabond". It's been a while but I think Yamaha dealers still carry it.


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all the japanese sealants work great for a non gasketed surface(or three bond) just make sure you use the non hardening agent. loctite has a red sealer(518?) which works good also but i have been using japanese sealants since the early 70's and have a hard time changing now....
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Last edited by joe a.; 10/16/12 3:28 pm.
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Loctite 510 works well for me.
Silicone sealant like Permatex is ok. too, but make sure to apply any silcone sealant in a very thin layer.


Peter.
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Take your pick.. BSA cases are pretty good and do not easily leak... so what ever you use will likely do a nice job. FYI, the SRM guys use clear silicone adhesive, kind of like aquarium sealant... it is almost invisible should you get a small dab where you do not want it..

OK, here is a tip with the Pearson crank... you want to make sure the long bolts are in the "up" position when you put the cases all together.. The Pearson crank is a bit wider than stock, and the bottom of the long bolts will bind up on the crank if you are not careful.. and then those nice new long bolts will be slightly bent and want to bind after that.

I took some round aluminum and machined a groove..then use a zip tie to keep the spacers from falling off...

Have fun..!

Ron

Last edited by Ron - in California; 10/17/12 2:07 am.

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