I will be using the clutch nut to jack the input shaft bearing onto the input shaft, and the primary drive gear nut to jack the right-hand main bearing onto the crankshaft.

To keep the input shaft from turning while I turn the clutch nut, I place the transmission in 5th gear and clamp a vice-grip onto the output shaft.   Strips of soft-roll copper tubing protect the splines on the output shaft.

Apply a nice uniform coat of sealant (I like Permatex Optimum Grey or Black) to the right-hand case sealing surfaces and then carefully lower the right-hand case down over the crankshaft and trans input shaft.

Use the clutch nut to jack the inner race of the transmission bearing onto the input shaft.  You do that by stacking up spacers and/or washers on the shaft such that when you tighten the nut the spacers and washers push on the inner race.  As you run out of threads, you remove the nut and add more spacers/washers.  Go slow.  You must work back & forth between the crankshaft and input shaft to draw the case down evenly, keeping the case halves parallel with each other.

Here’s what my input shaft jacking setup looked like.   The tubular piece with the small oil hole is the stock clutch spacer.  The rest are just washers and spacers I dug out of my junk pile.

You work back & forth between the two shafts, evenly drawing the bearings onto the shafts.   Like a half-turn on the clutch nut, then a half-turn on the primary drive nut.  Back & forth, slowly closing up the gap, keeping the case halves parallel.  I really like the Permatex Optimum Grey sealant because it doesn’t set up right away.  It allows plenty of time to get the joint closed up.

The crank turns free.  No unusual grinding noise.  Trans shifts through all five gears.  No problem finding neutral.  I let the sealant set up several days and did another leak test.  It was all good, no leaks.  So now its oil tight and I have some degree of confidence in the balancer drive, plus I have a tool to periodically check the drive pin.  I guess that’s better than nothing.  All set to start engine assembly.

I hope you find this report informative.  As always, I welcome your questions & comments.  Knowledge is power.

Best regards,

Mike

I suspect "BRG DRiver" would be "bearing driver".  

I also hope you never "need" the tutorial.  But in the event you ever "want" to tear open that lower end, I hope this makes it a bit easier.

I simply can't help myself.  I just love nuts-n-bolts.  

"BRG DRiver" would be "bearing driver".

well DUHH,, dont I feel smart now,,
I almost wish you just acted like ya didnt even see it now,,
Wadda Maroon!

Is this when Im suppposed to say thanks?


OOOOOKay,, thanks,,