Posted by CNKS on February 18, 2013 at 16:35:36 from (216.144.104.128):
Or someone else who is sure of the answer. I am putting a 281 cu in engine kit in my Super M. It will have the original the IH fire crater pistons in it with new sleeves and rings. I bought a 22 degree advance plate from Dave Slater. Getting ready to finally assemble the engine. I noticed today that it has an LPG head, cast 12-6-58, letter appears to be D, hard to read. Head number is 8574 DC. Webers Tractor Works says the LPG set up with firecraters has 197 psi compression. Is that correct or does the factory LPG have other modifications? My tractor did not come from the factory with LPG. I did little more with the tractor but drive it around with no load and on the road in 5th. I did not hear detonation in 5th, but I am 75% deaf. Tractor will not be used much, when it is it will be with a bush hog at considerably less than full load, since my bush hog is only 5'. Does this tractor require premium fuel?? Anyone have an idea what the drawbar HP is?
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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