harley 1937 U transmission rebuilding

[hdhikaru]

Hi, please advice....
I just finished rebuilding of 37 U transmission.
I just seal main drive gear like this... IMG_8638.jpg

so how many cc oil should be in?

tks
Shin

[T. Cotten]

Shin!

Please fill it to the bottom of the filler plug threads, level of course.

I'll guess in the neighborhood of 630 cc.

And please use the same oil as for the motor; Good luck!

....Cotten

[hdhikaru]

hi Mr.Cotton, got it! thanks!!

[hdhikaru]

Hi Mr,Cotton,

I use oil single 50 for the motor. same one for the transmission too? not thicker one ... like 80 or 90?

[Chris Haynes]

50 or 60. The same as you use in the engine.

[hdhikaru]

ok, thanks Chris.

[T. Cotten]

Please note, Shin,

Oil can only access the main drive gear bearings by seeping past thrust washers.

A heavy lube would be restrictive.

...Cotten

[hdhikaru]

got it! thanks Mr. Cotton!