TR2/3/3A TR3 Generator Mounting Bolt Size

[Hatman]

Anyone know the size and length of the two generator mounting bolts for a 1959 TR3 (<60001)?

Thanks in advance.


Mark

 

[Geo Hahn]

Hopefully you'll get an answer from someone who knows (I don't off hand) but thought I would mention that at least in the case of the front bolt, I don't think a hardware store bolt of the correct thread and length is quite enough -- I recall that bolt has a shank on it to prevent the threads from chewing up the generator front plate. Using a full-thread bolt may seem to work but can be a problem (literally) down the road.

 

[Tinkerman]

Call TRF, they can tell you. I agree with Geo, you won't find them locally. I bit the bullet and bought them from one of the big three.

Tinkerman

 

[TR3driver]

I recall that bolt has a shank on it to prevent the threads from chewing up the generator front plate. Using a full-thread bolt may seem to work but can be a problem (literally) down the road.

Same thing is true of the rear bolt; the part that contacts the generator needs to be a smooth shank. However at the rear, you can just use a bolt that is long enough to have the right length shank. Original part numbers were 59115 (front), 113094 (rear). TRF seems to have suitable substitutes listed.

 

[vivdownunder]

And carefully check the thread inside the generator front pedestal mount, as they chop out, and if so, a new bolt doesn't hold for long.

Use new spring washers on both bolts, as there's a lot of vibration there, and if the rear bolt comes loose, the generator backplate often snaps.

Viv.

 

[Hatman]

Thanks for the advice, guys!