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Onan to 8163-T adapter plate

615 Views 1 Reply 2 Participants Last post by  ATLANTIC CENTRAL
The Onan B43M twin on my 8163 is tired and I want to re-power with a 22 HP HF670 while I overhaul the Onan. I am making my own adapter plate. I have a plate from a single cylinder (unknown which engine) 812. The Onan still runs, smokes & doesn't like to idle, I don't want to pull it until I'm ready to swap.

Is the Gravely transmission bolt spacing the same for all the 800/8000 tractors? :thanku:
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Do you mean the bolt pattern for the adapter to the transmission? Yes, the same, 800, 8000 and G series.

Sheldon
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