Posted by jcip on March 05, 2013 at 03:30:01 from (72.231.151.240):
Good day! I am working on a 1939 John Deere B. I have 4.500 dia bores and 1 1/4 dia wrist pins. I had an issue with crankshaft (splines for clutch shot) so I bought a used crank supposedly from a 1940 B. The mains on this crank measure 2.750. My old mains were a lot smaller, did not measure, but likely 2.500 or less. So I bought 2 used connecting rods to fit this crank. I now have 2 rods that fit mains, but now my wrist pins are wrong. The pistons I have sport a 1 1/4 dia wrist pin, while the rods I bought have a 1 3/8 dia wrist pin bore. My question is, can I buy 4.500 dia pistons with 1 3/8 wrist pins or should I just go ahead and make oversize bushings for the new rods and put it together. I also need to find a new set of rings, all of my normal suppliers have 4 11/16 dia rings for a later model. Any help will be appreciated, John
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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