Scenario:
30,000 mile 1969 GT6+ recently purchased a good friend of mine. Beautiful
and mostly original car. Car had some mechanical work done after long storage
before my friend and I test-drove it. All was fantastic, save for what seemed
to be a constant driveline vibration.
He and I finally had a chance tonight to check out the rear end. Rear wheel
bearings seem fine, u-joints on drive axles seem fine, and Rotoflex couplings
are intact (if not pristine). All seems to turn very smoothly and freely by
hand.
The seller, as noted above, had performed some mechanical work, including
replacement of the rear u-joint on the driveshaft (propeller shaft in the UK).
That seems fine as well, BUT....
It finally occurred to me that, just maybe, the seller had effected the
replacement of the u-joint by separating the driveshaft on the spline rather
than
dropping the entire shaft out of the car. We decided to spin the driveshaft
until the yokes on the driveshaft itself were at "top" and "bottom"; then we
checked the front end to see what was up. Sure enough, there's a difference
in orientation of maybe 20-30 degrees.
Question: in the absence of anything else obvious, to you all think that
this might be more than enough to cause the vibration in the driveline?
--Andy Mace
*Mrs Irrelevant: Oh, is it a jet?
*Man: Well, no ... It's not so much of a jet, it's more your, er,
Triumph Herald engine with wings.
-- Cut-price Airlines Sketch, Monty Python's Flying Circus (22)
Check out the North American Triumph Sports 6 (Vitesse 6) and
Triumph Herald Database at its new URL: _http://triumph-herald.us_
(http://triumph-herald.us/)
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