<VV> strange noise from my Corsa rear end

[Daniel Goldberg]

Hi all,

Between June and Auguest I revived a solid '65 Corsa 140 convertible that had been moldering in a garage for about 12 years.  Now it's back on the road and it goes like stink!

However, a problem is now making itself known.  There is a steady "whump, whump" coming from the rear that speeds up when I accerelate.  It's as if the car is riding across railroad ties.  The sound comes on when the car is in gear and I am accelerating -- no noise when I'm coasting in or out of gear, so [I think] that rules out a bum wheel bearing.  There is also no noise when I spin the wheels by hand with the rear end in the air -- in fact, I have yet to duplicate the sound with the car not in motion.

Everthing underneath seems tight and in place.  Also, the transaxle is full of new gear oil.

Any ideas?

daniel
Falls Church, VA