Posted by The tractor vet on July 22, 2011 at 20:46:05 from (75.19.127.83):
In Reply to: Re: 756 questions posted by CDB on July 22, 2011 at 14:11:07:
Well a burnt valve is a burnt valve , it will have a miss to a dead miss . The only way to tell is a compression test on all cylinders. And does your LOCAL wrench know that the engine timing is set at wide open throttle ????? , you set timing at full advance at full throttle . I was up at One of the guys place that came on here looking for help on his 796 gasser that had smoke coming out from under the hood. Found that problem and a lot more . Had to rebuild his carb and adjust his clutch and trans brake and dump valve . Had it running and it had a light miss and with the help of his neighbor having a timing lite as mine got dropped and broken and i have not got my new one YET we checked his timing and it was set at 28 degrees advance at idle and when you upped the engine speed it went off the scale . Got it set back and it runs like a top . Your 291 sets at 18 degrees BEFORE TDC at HIGH idle or wide open throttle . More then likely you are probably more then and hour from me as i am in N.E. Ohio or i would work ya in and check it for you. I have to go back up to Greg's and do some work on his brakes and also work on his neighbors tractor . Keep one thing in mind here there is no magic cure all in a can . That tractor is probably in need of a good tune up and not just plugs and points. Like a valve adjustment and checking the distributor and just going over everything.
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