Re: Time to start asking 460 questions

Posted by ChadS on July 19, 2004 at 12:30:07 from (66.228.96.178):

In Reply to: Time to start asking 460 questions posted by Kelly C on July 17, 2004 at 19:23:00:

Dear Kelly, I had the same problem in a C-263, I put into one of my pulling tractors. I call the condition you described,, "The famous IH 6 cyl stutter" It is a combination of 2 things, carb and plugs. the carb venturi is pretty large in the carb, I used a smaller venturi out of an M to give it a bit more vacuum when I gave it the gas, it worked very well, then I moved on to the distributor. I found that the mechanical advances were stuck, the distributor otherwise was in good shape,, New points, condensor, and freed up the mechanical advance,, then off to the dyno. I worked the engine for a while, at low rpms, to warm it up, opend the throttle, and it sputtered and died again. It started right back up, with out choking it, usually this engine had to be choked for a while to start, Anyways, shut off the dyno, and richened the main jet adjustment, opened the throttle all the way to high load speed, and reset the carb,, with out the dyno,, till it stopped sputtering, then turned on the dyno once more, after I got it dialed in with the timing, at 28 degrees adv, and the fuel screw set right, it fires right up without choking it, cold, stays running, and dont misfire through out the rpms,,

Another idea would be to run a compression test, it may have a bad valve, or one starting to burn, the 6 cyl were famous for that. if the compression checks out,, then move on. Hope this helps a bit, ChadS

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