Torque Wrench Extension
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This extension is
used to reach down and turn the driven gear in the upper housing on 1974 - Date
MerCruiser drives including Pre-Alpha, Alpha One and Generation II. It is for
measuring the preload on the driven gear bearing assembly.
We recommend
leaving out the 2 seals below the driven gear when taking this measurement. We
do recommend installing the 3 1/4 x 1/16 o-ring under the top cover.
New bearing
readings are
6 to 10 inch pounds.
Used bearing
readings are
2 to 4 inch pounds.
The tool is 10
inches long. It has 13 teeth on the driven gear end and a 3/4 hex on the
torque wrench end.
Shipping Wt. 2 Lbs.
: Order #
4750
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MerCstuff,
llc 
