ChadS
08-01-2004 19:27:34
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Re: Need H.P in reply to Farmall H PuLLeR, 08-01-2004 18:45:16
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How about for free? might have to buy a carb bowl gasket,and the seal around the brass metering stem in the bowl of the carb. Basicly, a sharp tune up is about all you need, this basicly includes rejetting the carb, upgrading to premium gas, looking at the distributor components closer, Lets talk about the carb first, the procedure is the same for both, Zentih, (H) and Marvel Shebler, (SH-450) these carbs were meant for fuel economy, and were undersized jetted. Remove the carb bowl. Remove the main load adjustment screw and the brass fitting. Then remove the brass metering stem. Gotta go to town to the hardware store, unless you have these already,, go to the drill bit section, and find the numbered indexed drill bits, they are very small, 1-100. Find the bit that fits the main jet, then buy 4-5 sizes larger bit. Drill the main jet to this size, and the bottom 2 holes in the metering stem. clean out the shavings with compressed air, reassemble. At full throttle you should be able to make it run rich, or smoke out the pipe, turn the adjustment screw till it just smooths out. This will give you about 3-5 more HP at 540, and a bit more lugging power, when the engine lugs hard and stalls, it needs more fuel to help keep it going a bit longer. Chad
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