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DC Question

Yesterday's Tractor Forums
M

mo-cc

New User
Could someone tell me what the rocker arm ratio is on a DC motor? 5505A head if that makes a difference. Changing valves and springs-machine shop needs to know. THANKS.
 
The different heads won't matter because they all took the same valves. If you are meaning the compression ratio it is 5.58 for gas fuel according to the manual. My manuals show nothing about a rocker arm ratio though.
 
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