Glueing base gasket to cylinder

[Gumpster]

The hollow dowels are in place. They were when I tried to fit the cylinders the first time. The mistake was the base gasket was placed on the upper crankcase instead of being secured to the base of the cylinders. I plan to secure it to the cylinder base this time. This will reduce the exposure of the gasket to pistons and supporting wood blocks during installation. I'm sure it can be done either way but this way will be safer for me..

The gasgacinch product is only available by ordering it so permatex high tack gasket sealant will be substituted sparingly and the GREEN rubber bands just for added insurance..
i will ill document with photos and share results regardless of the outcome.

Anyone planning this job soon (Eddypeck), I highly recommend taking some extra time to clean the inner cylinder studs through the cylinder cooling fins prior to disassembly. When I pulled the cylinder, bunches of crud dropped into the crankcase. I was separating the crankcase halves on mine anyway to repair some threads but it turns into a much bigger project.

[Nessism]

The gasket needs to go on the side with the hollow dowel's otherwise the gasket can get damaged when the two parts come together. I've alway put the dowels and gasket on the crankcase.

[Fjbj40]

I always put it on the crankcase also, as Nessism says, the dowels hold it in place, never used glue.

[Gumpster]

Thanks for the response. My problem wasn't with keeping the gasket positioned but rather keeping it (the base gasket) damage free during piston installation.

[Gumpster]

Thanks for the response. My problem wasn't with keeping the gasket positioned but rather keeping it (the base gasket) damage free during piston installation. Even if no gasket sealant is used, I would still hold the gasket up on the cylinder out of harms way with rubber bands around the base of the cylinders until the Pistons are successfully inserted. It just makes sense to me to isolate a delicate gasket from potential exposure to damage. It's the same philosophy as using a fender cover or taping off adjacent painted surfaces when installing components.. Just trying to be cautious this go around and do no want to order a third gasket. Shipping is kinda slow this time of year also..

[jsandidge]

I've never done this, but I soon will be. It sure seems the gasket will be more out of harms way with it laying on top of the crankcase, not suspended under the bottom of the cylinders.

[Gumpster]

Received my new base gasket. Didn't want it to end up like this one.20171207_190428.jpg
Placed it on some wax paper upside down and coated it with gasket sealant.

[Gumpster]

Wax paper20171207_122437.jpg

[Gumpster]

I secured the gasket to the bottom of the cylinder and fit rubber bands as a safety. 20171207_135530.jpg

[Gumpster]

20171207_132009.jpg
Used wooden blocks to keep pistons square with the bore and made some ring compressors with a plastic Zaxbys cup and tie wraps. I'm sure any fast food cup will work. Made it super easy and the gasket was never in jeopardy.

[Gumpster]

It's all back together and time to reinstall. 20171209_185031.jpg
They, where did that guy come from?

[jsandidge]

That looked pretty easy!

[eddypeck]

So, I've just done this and was very nervous after reading the comments here, but I wasn't convinced with fixing the gasket to the base of the cylinder to fitted it to the deck of the crank case, cut out some cardboard to protect it, made some wooden blocks to support the pistons as spec'ed in the Clymer manual and I have to say it was all very straight forward.

[rapidray]

YIKES!!!! From what I can see in that picture those pistons are trashed!!!
Ray.

[wymple]

I dunno. The scarring I see may be no danger to the cylinder walls, & sealing oil & compression are done above the skirts. Depends on whether the lines on the skirts are presenting a danger to the cylinders or not. I've seen them polished down to a non-intrusive state.