It is hard for me to follow this.

Choose one of these drawings #1, #2 or #3 that look most like your
Ross and give me the following dimensions.

#1

A: 0 at the rim, 3.5 mm from center out to 2 1/16". 13 mm from bulkhead to planet
gears

B:    2.75" counterbore where old oil seal sits

C:    2.5"

D:    3/8"

E:    ~0.52" (rough rear surface)

Actually the front bulkhead has a 7/8" wide 3/16" deep indentation machined into it,
starting 1 11/16" from the center, making  "B" a 5/16" wide "lip". Machining that lip
off down to the bottom of the indent would give me a total of 18 mm from front of
bulkhead to planet gear teeth, instead of only 13 mm.

Finn

OK Finn I am working on a fix. More shortly.
I will redraw this to scale.

Did you see Jim Mosur note on the drive pins?

Paul Lamar

Something wrong here. If D  is 3/8" the seal CB is only 1/8" deep
as E is only 1/2 inch or 13 mm. (Try to use just one or the other
measuring systems Finn.)

Is that true? Can you send me a picture of the seal installed in the
bell housing?

Paul Lamar

Sorry D is 3.8 mm. It's the counterbore that's 3/8" deep.

Finn

See how mixing systems gets you in trouble :-)
OK I will work on this tomorrow. We may be able to get in in 
there with the same length shaft.

Paul Lamar
 
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