OMC parts 800 / Cobra outdrive drawings * How to videos

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OMC clutch dog drawing *400 *800 *Cobra *Stringer

OMC 400-800 Cobra clutch dog parts & drawing

  • GLM Marine aftermarket 5 degree clutch dog and drawing.
  • Cobra installation picture 1986 to 1995 showing location of all parts required to shift the dog and placement of them

OMC Cobra installation picture 1986-1995
OMC Cobra installation picture 1986-1995

By author Trish Dougherty

Detent update

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.

  1. 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.
  2. 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.
  3. 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.
  4. Outdrive has a lot of running hours.

22625
22625

P/N 22625 Clutch dog 800 Cobra 1978 to 1993 GLM aftermarket OMC parts OEM-914716 $95.09

22633 Small hub 3.750 inch

P/N 22633 Clutch dog OEM-912607 $86.09

Old type with 2 degree lugs
Old type with 2 degree lugs
 
11052 spring
11052 spring

P/N 11052 Spring OEM-324369 $4.09

21135 Cross pin
21135 Cross pin
 
27720 Detent with updated slot
27720 Detent with updated slot

P/N 27720 Detent OEM-915954 $55.09

Old type no center slot
Old type no center slot

Old type detent with (no center slot)

28481 Shaft bearing housing kit updated detent
28481 Shaft bearing housing kit updated detent

P/N 28481 Shaft, detent, ball and cradle with bearing housing kit $226.09

Used electric shift spring

Used electric shift spring

Spring for electric shift outdrive

Spring for electric shift outdrive

Clutch spring Forward and reverse OEM 313455 $239.15

Clutch spring for electric shift outdrive