78 intruder 440 full restore. need some help

[heiner921]

so I decided to fully restore a 78 intruder 440.. I took it all the way apart to the point of removing the million rivets to separate the bulkhead from the tunnel. many pictures were taken to make sure I assemble it correctly.. many parts sand blasted and powder coated. Im starting to reassemble (new gaskets, seals, bearing, etc) and I have a few questions as far as alignment.. first question I have is with the jack shaft.... under the bearing support on the clutch side there were 3 shims under the support for each bolt when I dissasembled. the question I have is that are the shims used to make the shaft level?  with the shims back in, there is pitch when I put the level on the shaft. the clutch side is higher than the chain case side.  anyone have a spec or do I need to remove some shims to make it level? 


p.s.  pics to follow of the whole restore

[Interceptor398]

I suspect that when you put the chaincase and jackshaft in you will find that the jackshaft has some space under it,  the shims are to allow everything to be bolted in without any stress on the shaft from being pulled out of alighnment when the bolts get tightened up.

[heiner921]

What is the spec?

[rminier]

The service manual states "The bearing retainer should be shimmed until the jackshaft centerline is 6.62 inches above the track driveshaft centerline". A quick and easy method I have used is to remove the bearing from the bearing carrier on the driven clutch end. The jackshaft will have a slight amount of play or wiggle room to move it around in a small circle. The jackshaft is still in the bearing in the chaincase. If you move the clutch end of the jackshaft around in a circular motion, you can quickly tell how far it misses touching the bearing carrier. You can then adjust the fore and aft adjustment, and the up and down (shims) adjustment so that the jackshaft has the same amount of room through the entire circle. This will have the jackshaft very well aligned between the bearing in the chaincase and the bearing behind driven clutch. So the jackshaft should then have minimum drag, and no tension, or pre-load on the bearings.

[heiner921]

Thanks ks you very much!!!