1986 G3/G1 Rebuild questions/progress

[85.G3]

So I have all my parts from Plowmans to get this back to as new or better. First question, do I need a primary clutch puller to change the crank seals?

[smallblock450sl]

Originally Posted by 85.G3

So I have all my parts from Plowmans to get this back to as new or better. First question, do I need a primary clutch puller to change the crank seals?

Yes, very rarley does the primary fixed sheave come of the crank without the puller. On the flywheel side a 3 way puller will work. Make shure to "mark" the ignition timing plate so you can reinstall it correctly.

[abieex]

I used a 1/16" dril bit to make a mark on the plate and the case.

[85.G3]

Thanks guys, I will avoid a problem I didn't even know was there

[85.G3]

So I started my first war with a centrifugal clutch today. Overall it went pretty good but I think the G3 body and chassis create some clearance/access issues other G1 don't have. I had to disconnect the top shock bolts and jack the body up from the swing arm a few inches to get a straight shot at the shaft and puller with the rear wheel off.. With an impact wrench the shaft nut and puller were a breeze. Then came the sheave key and it was stuck pretty good, soaked with penetrating oil and pulled with a vice grip but it would not budge so I gave it a good tap with a screw driver and hammer and everything blew off with a bang. I don't think I will ever see the sheave key again but everything else is fine. So where to get a new key?

[slonomo]

Originally Posted by 85.G3

So I started my first war with a centrifugal clutch today. Overall it went pretty good but I think the G3 body and chassis create some clearance/access issues other G1 don't have. I had to disconnect the top shock bolts and jack the body up from the swing arm a few inches to get a straight shot at the shaft and puller with the rear wheel off.. With an impact wrench the shaft nut and puller were a breeze. Then came the sheave key and it was stuck pretty good, soaked with penetrating oil and pulled with a vice grip but it would not budge so I gave it a good tap with a screw driver and hammer and everything blew off with a bang. I don't think I will ever see the sheave key again but everything else is fine. So where to get a new key?

Thats what we all have to do. It's just part of the "swingarm" design. You should be able to find a key at your local napa or hardware store. If not, try one of our sponsors. I got my little do dads from a place called 3R which is close to me. They may have to order the little things, but you'll find em....

[85.G3]

Thanks Slo, My wife found the key on the shop floor this morning. I used "Sprindles" (SP?) ratchet tie down trick and it only a few minutes to get the Sheave, key and nut on . Now on to removing the motor and putting in the new top end. Really appreciate the help from this site and those that take the time to share experience

[85.G3]

So after completing the clutch I realize Spriddles instructions on this site say to discard the white plastic washer. Plowmans instructions don't mention the plastic washer. I don't recall where it was located on the shaft but the ID looks like the large inner part of the shaft. Do I need to tear it down and put the washer in? Thanks

[CharlieN]

That washer came from between the sheaves. The value in omitting it is that the belt will ride higher in the secondary providing a lower, low gear ratio.
You will want to set the belt in place to see how close to the top it rests. It should come right up to the top.

[85.G3]

Thanks Charlie. That explains why I didn't remember were it went. When I knocked the key out the whole clutch came off in a pile.