In 1992 OMC made a detent revision added a centering slot, that then position the unit in a fix
neutral location. Set up with the new detent is easy. To install screw shifter rod in clockwise 8 turns. This should give
you a reading of 7.156 inches from outdrive base to top of the rod end cap. This stops the clutch dog movement and lug wear
due to poor set up. New angle machined on the detent allows for much easier shifting. This faster engagement of clutch dog
and forward gear movement saves on 5 degree lug wear or shift cable replacement every 4 to 5 years.
Note if you are replacing the clutch
dog there are only 4 main reasons why.
Shift cable has stretched over time due to poor detent (old type) and forcing
it into forward or reverse gear after impacted damage to gears.
Engine rpm is to high (old fuel to new fuel). Carburetor
adjustments should be made with using 0 to 1000 RPM setting on engine tack. Readings should be as follows V8 engine (550 rpm),
V6 (575-600 rpm). Adding a door type spring to carburetor linkage we help insure that cable return to proper location in case
there is problem with cable being stretched.
Use of a stainless steel propeller where the stall out rotation rate
is slower due to weight, moving from forward to reverse to quick will damage lugs. In many cases this will break a tooth on
the pinion gear.
Outdrive has a lot of running hours.
22625 Clutch dog 800 Cobra 1978 thru 1993 GLM aftermarket OMC parts
P/N 22625 Clutch dog 800 Cobra 1978 to 1993 GLM aftermarket OMC parts OEM-914716 $96.95
22633 Small hub 3.750 inch 440-Cobra outdrives
P/N 22633 Clutch dog OEM-912607 $99.95
Old type with 2 degree lugs
11052 OMC Spring
P/N 11052 Spring OEM-324369 $4.95
21135 Cross pin
27720 Detent with updated slot
P/N 27720 Detent OEM-915954 $55.09
Old type no center slot
Old type detent with (no center slot)
28481 Shaft bearing housing kit updated detent
P/N 28481 Shaft, detent, ball and cradle with bearing housing kit $367.95