When splitting engine cases for access to gearbox if there is a gasket between the jointing surfaces or is it only a sealant that is used?

[TURBO200R4]

The stuff triumph used on my cases is tan and hard as a rock, anyone know what that stuff is?

Just my opinion
I would think that hard would be bad because when aluminum heats and cools it will expand and contract i think u need something that will give and will not break the sealing surface.
I will be watching yours for longjevity

 

[Kevin frazier]

Just my opinion
I would think that hard would be bad because when aluminum heats and cools it will expand and contract i think u need something that will give and will not break the sealing surface.
I will be watching yours for longjevity

that is the factory stuff, i havent split the case, i was wondering what it is the stuff triumph uses at factory. But its super hard, ill shoot a picture, fixing to put clutch back together now.

 

[TURBO200R4]

It just might be some good stuff

 

[Kevin frazier]

Just my opinion
I would think that hard would be bad because when aluminum heats and cools it will expand and contract i think u need something that will give and will not break the sealing surface.
I will be watching yours for longjevity

Its actually not that hard but it dont just peel off, id like to find out what they use for when i do have to split case its good stuff

 

[Gerald]

The stuff triumph used on my cases is tan and hard as a rock, anyone know what that stuff is?

Manual calls for Threebond, I purchased from Amazon, Threebond 1207B, description is: silicone type liquid gasket

 

[TURBO200R4]

Manual calls for Threebond, I purchased from Amazon, Threebond 1207B, description is: silicone type liquid gasket

The fwd trans have cases that bolt together i might give it a try also on 4x4 transfer cases.

 

[Gerald]

The fwd trans have cases that bolt together i might give it a try also on 4x4 transfer cases.

Seems to hold up well and is what I used, but permatex silicone has also proven well and bigger tubes { caulk gun sizes }

 

[Kevin frazier]

Manual calls for Threebond, I purchased from Amazon, Threebond 1207B, description is: silicone type liquid gasket

Considering i sleep with the manual i should have looked but havent needed that section yet

 

[warp9.9]

Ive used ,3bond, then honda bond, last time was permatex black. If it the gasket area like the rear of the engine and torsional cover I use hylamar just incase I need to save the gasket. But would also use the same black permatex.

 

[TURBO200R4]

Ive used ,3bond, then honda bond, last time was permatex black. If it the gasket area like the rear of the engine and torsional cover I use hylamar just incase I need to save the gasket. But would also use the same black permatex.

Sometimes i use a combo like the 3m yellow on the water pump then gasket then black rtv so when u pull the pump u do not have to spend 30 minutes cleanjng the block area.