MM R Clutch

molinegb

Well-known Member
Clutch in my 39 R is worn. I know later R has different clutch and won't interchange. Did one 20 some years ago and ran into issues but don't remember what.
 
I am thinking there is a diameter difference between 1945 and 1948 pressure plates. (Either that, or the '38 pressure plate was smaller.) I don't think the flywheels interchange either, but its been nearly 25 years since I had one apart.
 
Just pulled a 49 R apart and has 9.. 39 8 inch. Now to find a clutch or get relined. Parts books only show RT9501 and RT 9501A. A is 9. Must have changed in early 40's.
 

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