Ryan OD Lube

J

jeepguy1948

Well-known member
I recently purchased a new to me Model A with a Ryan OD and would appreciate it if one of you Ryan owner’s could tell me what Lube I should use in it. I assume that it does not use the 600 that the diff and trans use.
 
I believe I still have the Ryan installation and instruction manual that came with my Ryan in the early 1990's. I think my Ryan serial number is 13. Let me know if you need a copy of this defunct company manual. It's only a few pages long as I recall.
I'll look for it now and post later what lube is recommended by Ryan. Unlike the Mitchell O.D. ("gear splitter"), the Ryan overdrive in not synchromesh. Double clutch when shifting into the Ryan and you will cut down on gear grinding.
Marshall
 
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'Found it! Miracle of miracles, considering the thousands of Model A and T magazines and manuals stacked up in my basement! I see that my serial number is A60, not 13. I think that 13 number is for my repo Riley Two-Port OHV head.
Anyway, the manual says in underlined capital letters to NEVER, NEVER USE 600w because it will turn to sludge with the consistency of pancake batter. Ryan specifies 85-140 high pressure gear oil from Mobil or Valvoline.
I trust that answers your question?
Marshall
 
True, as I remember the Ryan does not use synchronizers, instead it uses a "selector-dog" system. The same gear selection system used on the 1970s Yamaha 360 RT-1, DT-1, CT-1 etc. It it was a constant mech system.

I bought two DT-1 250s each in a basket ... literally and reassembled them and sold them, along with my well used 1970 RT-1 360 to buy the 1976 XT-500 Enduro dirt-bike.
 
Benson said:
True, as I remember the Ryan does not use synchronizers, instead it uses a "selector-dog" system. The same gear selection system used on the 1970s Yamaha 360 RT-1, DT-1, CT-1 etc. It it was a constant mech system.

I bought two DT-1 250s each in a basket ... literally and reassembled them and sold them, along with my well used 1970 RT-1 360 to buy the 1976 XT-500 Enduro dirt-bike.
Click to expand...

Not just Yamahas, most motorcycles use a constant mesh sequential shift transmission along with some auto racing transmissions.
 
Y-Blockhead said:
Not just Yamahas, most motorcycles use a constant mesh sequential shift transmission along with some auto racing transmissions.
Click to expand...

Thanks I have only had my hands inside Yamahas, a few BSAs so I did not want to make a blanket statement ... Don't Ya Know?
 
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