case sealer?

[dmfisher71]

ok i have worked on several banshee top ends.. but i split my first set of cases yesterday to change crank seals and check crank.... i knew there was no actual gasket for the cases but what is thebest type of sealer to put on the cases... and any tips to get a better seal would be greatly appreciated....thanks

[sheerider11]

A good cleaning and some RTV. You can use 3 bond, yamabond, I heard some one used hondabond too. Don't use tools to clean the cases. A decent bead is all you need. Not to much, it can get all over the moving parts.

[jasons]

1211 or yamabond 4, hondabond, Threebond 1194

[Coupelx]

i know some guys like to use rtv. and while thats all fine and dandy, remember that rtv is not fuel resistant. just some food for thought.

[BANSHEE HP]

Permatex 513 anarobic imo it is easier to apply and remove from cases, and doesn't start to harden up until the cases are put together.

[RadarRacing]

I like permatex 1104 as well.

[bansheesandrider]

i know some guys like to use rtv. and while thats all fine and dandy, remember that rtv is not fuel resistant. just some food for thought.

X2, you should not use RTV to seal your cases as the fuel will attack it and eventually you will have an air leak. I use Yamabond 4, but you can use sealers by Threebond, permatex, or even Hondabond, which I think is the same as Yamabond but in a Honda package.

[dmfisher71]

thanks for all the info guys... i will probably use the threebond as i will not step foot into my local yamaha shop..for personal reasons...lol...thats a story in its self

[registered user]

i tried that honda bond4 one time and threw the tube away. runny, messy, stringy crap. seems like the tube says not to use on gasket less applications. either way, good luck if you use it. i hate the shit. been using ultra balck permatex for a long time and it works great for me

[spurdy]

X2, you should not use RTV to seal your cases as the fuel will attack it and eventually you will have an air leak. I use Yamabond 4, but you can use sealers by Threebond, permatex, or even Hondabond, which I think is the same as Yamabond but in a Honda package.

 

 

X3 never use RTV in an application where it will be in contact with a fuel mixture. I like Yamabond myself. I also won't go to the local shop here. But there are more places than that to get it. Order it online or from a site sponsor.

 

SP

[ticktock]

Only thing I would add to the above is Permatex Aviation Form a Gasket. It is designed to work in oil and gas applications. I have used this many times in dealing snowmobile cases and the banshees. Stuff is great! Pick it up at any Napa for 5 bucks.

 

Hope that helps

[tsharktim]

Not sure how true it is because I have never used it but I heard RTV is too thick and will not let the bearings seat properly

[spurdy]

Not sure how true it is because I have never used it but I heard RTV is too thick and will not let the bearings seat properly

 

 

That makes absolutely no difference if the RTV deteriorates from the fuel and causes an air leak. The seating arrangement of your bearsings means nothing at that point. However, regardless of how thick RTV is pressure will thin it out.

 

Epic fail non the less.

 

SP

[BigRed350x]

i know some guys like to use rtv. and while thats all fine and dandy, remember that rtv is not fuel resistant. just some food for thought.

 

Some types are, you just have to read the package...

[tsharktim]

That makes absolutely no difference if the RTV deteriorates from the fuel and causes an air leak. The seating arrangement of your bearsings means nothing at that point. However, regardless of how thick RTV is pressure will thin it out.

 

Epic fail non the less.

 

SP

 

 

True... I missed the original point. i actually just helped a friend split a case were they used a reg rtv that caused an air leak on the right cyl. Ive used the Hondabond, little easier to use than yamis