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>From: Ray Gifford <rainman@midwest.net>
>i ahve a friend stranded in champaign, il. here is the problem. he has a
>68 camper bus, his crankshaft seal was leaking so he pulled the motor to
>change the seal and the input shaft came out with it. it has threads but
>he could not get it to thread back in. i suggested he try to reverse
>thread it it. can anyone else offer any help.
I'm afraid your friend is in for some serious transmission work. The TINY
screw thread holds the input shaft in place, but that's all. The torque is
transmitted by the spline on the outside. The two shafts are coupled by
means of an internally splined sleeve that must be slid over the two shafts
AFTER they are screwed together. This sleeve also happens to have one of
the gears involved in reverse on its outside; I suspect your friend has been
missing reverse for awhile.
It is just POSSIBLE that the input shaft, less the screw, could be pushed
straight back into the gearbox and it might mate up with the coupling well
enough to transmit torque, but at the very least there is now a loose
circlip in the differential, maybe a loose reverse gear pinion. I would
estimate the chances of great transmission damage to be 100% if he tries to
drive it any significant # of miles.
It should be towed, with the rear wheels off the ground, to a place where
the left side cover can be pulled off and these parts put back in place. It
is likely that some parts are already damaged, or even possible that he
already needs a new gearbox.
If the input shaft came out with the circlip still on it and the screw
inside it is just broken off, then it should be possible to remove the screw
fragment and just slide the input shaft back into place inside the reverse
gear pinion sleeve. The engine will hold things in place until the next
time it is removed. If he can't seem to find the sleeve to slide into, then
the pinion sleeve has probably already fallen into the differential and it
will be necessary to open the tranny to put it back into place.
Removing the left side cover is exciting, but not that hard (drain the fluid
first!) if 68 is IRS. If 68 buses were still swing axle, then this is a BIG!!!
job. My condolences.
Wish him luck.
Jim
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Melissa Kepner Jim Adney
jadney@vwtype3.org jradney@njackn.com
Laura Kepner-Adney
Madison, Wisconsin
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