(Alternative Subj: Countergear Shaft Wear, 4spd.)
John and Mike:
Thank you very much for your observations and recommendations,
although they were contrary to what I "wanted to hear". You
caused me to finally arrive at the right decision.
I really didn't want to go to the effort and expense in order to
rebuild the countergear assembly again - it had only been some
50,000(+) miles since I had done it, and that original tranny had
gone more than 140,000 miles without "breaking teeth".
The "wiggle test" revealed only the slightest amount of motion,
and I was trying to rationalize that the tranny had "many more
miles in it" before any rebuild was required. I already had
plenty to do, to get the Roadster back on the road.
I finally disassembled the transmission to the extent that I
could examine the countergear shaft. It showed more wear than I
expected. The attached photo shows it, together with two other
(slightly rusted) countergear shafts. The shaft on the left is
from my present tranny, the middle shaft is from it, as a "new
tranny" after 140,000 miles. The one on the right was from a
tranny with an unknown number of miles which started "breaking
teeth" in 3rd gear. The amount of wear (roughly estimated by
feeler gage leaves) is .008, .012, and .070, respectively.
I concluded that "any motion" AT ALL, is reason for rebuilding
the assembly!
Thanks, again!!
Dave
'68 1600
Kailua-Kona
p.s. Any of the "cc" recipients of the "List" from whom the
attachment was "stripped" are welcome to the picture, if they
request.
[demime 0.99d.1 removed an attachment of type image/jpeg which had a name of
C'gear shafts 1]
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