Can anyone tell me, do I use the inner and outer gaskets like I've seen on eBay, or do I just use sealer? I have 4 of these transmissions and none of them have gaskets. If I should use gaskets, then with sealer or no sealer on the gaskets?
Dave- I've only worked on unit motors, but I don't think the PU gearbox is mechanically much different. I've put them together both ways, and can't really say that one is preferable. I always thought that the extra end float, "slop", whatever you want to call it, when gaskets were used would affect the way it works, but haven't found that to be true. I use gaskets now because its less messy than 3bond. Mike
No gaskets needed. You can machine a groove for an "o" ring for the shifter shaft, though, if you don't already have it. Somehow Triumph expected the rubber square sectioned do-dad on the kick start shaft to seal it there, but that was wishful thinking. A proper lipped seal can be used there with a little ingenuity. Also, you can install a later and longer mainshaft bushing so that the leaks that normally come out of there while the bike is sitting on the side stand will drain into the primary. Even with all that you can expect a drop oil gearbox oil here and there as normal. Bill
Bikes 1974 Commando 1985 Honda Nighthawk 650 1957 Thunderbird/T110 "Flying Tiger" Antique Fans: Loads of Emersons (Two six wingers) plus gyros and orbiters.