This is the front plain primary gear bush(not the top hat one) that
needs to be reamed after replacing.
The finished sizes of the bushes are -
For road use;
Front bush 1.628" +0.002", rear bush 1.503" +0.002".
For race use;
Front bush 1.631" +0.002", rear bush 1.504" +0.001".
NOTE:
these figures are based on the crankshaft surfaces where the primary
gear runs being 'as new' in sizing. If the crankshaft is well used and
shows signs of wear in these areas - carefully measure the journal
diameters with a micrometer (or some such suitably accurate device). To
the figures gained allow a running tolerance of 0.003" - 0.005" for road
use on both bushes, and 0.006" - 0.008" on the front bush, 0.004" -
0.005" on the rear bush for race use.
Primary Gear Bush
- Product Code:DAM8889
- Availability:2-3 Days
-
$30.00