Farm Boy 651

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Thanks for the great reply Rudy! I’m going to build an IC engine sometime this year, and your Farm Boy is just the inspiration I needed to get my butt in gear.

Thanks again
John W
 
Hi Rudy

Nice engine. Thanks for the build thread

I am currently modelling up #770 and am having difficulties reconciling the dimensions on the Exhaust Valve Rocker Arm Bracket. I see from your drawings on post #33 that you may have had the same difficulties.

Could you please shed some light on the dimensions you used?

Cheers
Bruce

EDIT: Got it sorted - 0.660" should be 0.690" and 0.440" should be 0.430"
 
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Hi Bruce,
Glad you sorted it out. Can't remember if I had any problems. Anyway, if you want some measurements or other advice, I'm more than happy to help.
At the moment I'm trying out the propane demand valve from Howel. It works, but doesn't hold back much pressure from the gas bottle. Need an additional pressure regulator before the demand valve. Anyway, propane seems to be very forgiving to get going. Just a torch laying in front of the intake and leak some gas works fine (but of cause lets unburned gas into the room).

Rudy
 
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