[Healeys] BN2 transmission rebuild problem
rbender1 at berkshire.rr.com
Sun Jun 20 12:33:29 MDT 2010
Hey folks, here's the story -
About 25 years ago, I rebuilt my tranny; bearings, thrustwashers,
syncros.the works. Life was good. Apparently I go some of the lousy
syncros from Moss. They went bad in a few thousand miles.
This year, I decides to fix that problem, and while I was at it, I decided
to change to a BJ8 clutch.
Here is the total of what I did: New syncros (I went with the best I could
find - bronze from AH Spares), new thrust washers, I fashioned the pad that
the shift rods bang against in the bellhousing (it's about 1/8 inch thick
made from Tupperware plastic), It didn't have one at all before this
operation. That's all for the tranny.
For the clutch: Resurfaced BJ8 flywheel with new starter ring, BJ8 clutch,
pressure plate, and throw-out bearing, and a new spigot bushing. That's it.
I switched to MT-90.
Results: I had to adjust the clutch all the way to the end of the threaded
rod, but I'm convinced the clutch is fully disengaging. The clutch is
smooth as silk.
I go through the gears slowly and I think largely because
of the MT-90, it shifts smooth as silk.
I shift through the gears in a more spirited manner or
downshift without double clutching..not so much like silk. In fact it was
better with the old worn syncros!
Here's the question(s): Could this grinding be caused because I made the
pad too thick?
Could it be because I
switched to MT-90?
Could I have gotten another
bad batch of syncros ? I don't know of a way to install them wrong.
Could something else be
worn that I'm not thinking of?
Sorry for such a long winded question - any help would be appreciated
greatly. I really would like to have an idea of possible causes before
dragging that thing out again.
By the way, the overdrive works smooth as silk too, and I have no desire to
switch to a Toyota tranny.
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