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Timing

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8Ngine

02-21-2001 19:49:06

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How will the engine sound/behave if the timing is too advanced/retarded? And can the timing be adjusted by turning the external screw on the starter side of the distributor?

Thank you.

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Al English

02-22-2001 20:01:45

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Re: Timing in reply to 8Ngine, 02-21-2001 19:49:06

Hi 8N, If the timing is retarded the engine will have poor throttle response, reduced power, increased fuel consumption, elevated operating tempratures, and higher exhaust tempratures. Too much advance will result in spark knock and "kick back" on the starter motor while cranking. These symptoms only become noticable when the timing is off quite a bit. Unfortunately engine damage can result from the timing being off less than is needed to produce these symptoms. That's why it is important to understand the timing procedure and do the work correctly. Good luck...Al English

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James Lee (TN)

02-22-2001 18:44:25

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Re: Timing in reply to 8Ngine, 02-21-2001 19:49:06

If you are timing it by moving the screw on the dist, move down until the engine loads, then up to stop loading. I time mine this way after I "strait edge" it and it works well for me.

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Salmoneye

02-22-2001 04:08:01

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Re: Timing in reply to 8Ngine, 02-21-2001 19:49:06

All your current questions, and many of them from the future, will be answered if you just get an I&T, FO-4 Shop Manual. They are available at almost any tractor supply house and numerous sites on the net including this one on the left under 'Marketplace'.

The initial timing on the front mount distributor is set with the distributor off the tractor. You need to take a straight edge and lay it along one side of the offset tang and measure a quarter inch off one of the mounting holes and watch the points as you rotate the distributor.
I know how to do it and have done it a couple of times, and I still have to refer to the manual each time I do it. You may be able to adjust it with it on the tractor, but If it were me, I would not attempt it.

Get the manual...

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8Ngine

02-22-2001 06:17:57

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Re: Re: Timing in reply to Salmoneye, 02-22-2001 04:08:01

I've ordered the manual. I know about the straightedge aligned to the tang which should leave a distance of 1/4" measured to the edge of the mounting hole. I'm not going to do it while it's on the tractor. I, personally, may not do it at all. I've never been into a distributor until yesterday and I managed to get my tractor running, but it just doesn't sound right. Hence, my concern.

I just thought someone might know the symptoms of a tractor being out of time and wanted to clear up some confusion caused by contradictions on the board. Some say adjust the timing using the screw. Others say use straightedge method. I wondered "Is there a difference? If not, why would some do it one way and some do it another?"

But, I'll just let ol' Charlene set until I get the manual.

Thanks for your help.

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