Kathy Converse wrote:
> Tried looking this up in haynes, and autobook, but cant find the specs.
> how much play should you leave between the ring and pinion gears when
> rebuilding the differential?
>
> This is on a 63 spitfire
The number is .004 - .006". It is called "backlash" in the factory
workshop manual.
This measurement, along with pinion height, determine whether your diff
will hum along quietly for 100,000 miles or self destruct in 1000. I
don't know whether the books you are using contain this, but the factory
manual instructs you to check the gear mesh pattern with paint after
you've set the height and backlash. If you don't have this info, list
member Barry Schwartz (you still out there Barry? Thanks again for all
your help!) put together a good description with nice, big, clear
illustrations of how the mesh pattern should and should not look, and
what adjustments to make for the bad patterns.
Bill Kelly
'62 Herald
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