For all your gasket related questions.

[thatkid]

[ragedigital]

Just so everyone is clear.... if you have a gasket, paper or whatever, no additional sealant is required. This is especially true for a head gasket.

The only time you use any type of gasket sealant is when there is no replacement gasket and when it is in an area of low pressure and low heat.

For instance, there is no oil pan gasket for my 05 GSXR600. I used Permatex gasket maker for that gasket.

[thatkid]

Defiantly never on a Head Gasket, if i ever use sealant on a gasket it's Blue Hylomar (non setting easy break) best in the world IMO.

Sometimes there's no studs or collars to hold a gasket in place the gasket will fall, or if im replacing a sump gasket (car/auto engine in situ) so the gasket don't fall back on my head if that's the case, i nip the bolts/nuts leave things to settle 30 mins before applying the correct torque setting.

Never used it on a bike engine though no need.

EDIT

More importantly if you ever use any sealant with or without a gasket, where it could come into contact with the oil!! (valve cover, sump/oil pan e.t.c.) use the sealant sparingly!!!! you may see the sealant squeeze out, its also squeezing into your engine it will eventually find it's way to the oil strainer restricting the oil supply!!!!

[haunter]

I've used some red permatex before in conjunction with a head gasket

but only near a few places where head/block meet that are prone to leaks on certain motors

[yamaha_george]

Hmm,
whilst all that chatter is duely noted...........

Can some one kindly explain why Yamaha would give their service outlets "yamabond"

[ragedigital]

Can some one kindly explain why Yamaha would give their service outlets "yamabond"

"Yamabond" is primarily used for sealing the engine cases back together.

[yamaha_george]

Can some one kindly explain why Yamaha would give their service outlets "yamabond"

"Yamabond" is primarily used for sealing the engine cases back together.

Oh you mean like gasket goop /permabond / silicon sealant / Gorilla Snot ?

[reelrazor]

Can some one kindly explain why Yamaha would give their service outlets "yamabond"

Yamabond is anaerobic (cures without oxygen/air). It is used when any thickness of composite/metal gasket would be too much.

The seal made by yamabond is for matched metal surfaces-like engine case parting lines and such.

[yamaha_george]

Can some one kindly explain why Yamaha would give their service outlets "yamabond"

Yamabond is anaerobic (cures without oxygen/air). It is used when any thickness of composite/metal gasket would be too much.

The seal made by yamabond is for matched metal surfaces-like engine case parting lines and such.

The exception being clutch & mag gaskets on Yamaha bikes as we were taught by the factory engineers over the years .

[thatkid]

Never heard of Yamabond before Googled it, and im guessing its an instant gasket/gasket maker, where no gasket was previously used/installed from manufacture. I.E. upper lower crank casing's, not to use as a gasket sealer?