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distributor plug wires

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09-23-2005 08:33:27

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I bought an old d-17 and i"m not sure the plug wires are on correct it cuts out at high rpm and backfires at idle.
what is the #1 plug position on the distributor and the # 1 cylinder

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Steve in N.J.

09-29-2005 18:19:00

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 Re: distributor plug wires in reply to lrh, 09-23-2005 08:33:27  
We build spark plug wire sets for all AC machines if you think your wires aren't correct. We also have tune-up kits with top of the line tune-up parts. No cheapo foreign junk. Drop us a line if interested....

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09-23-2005 20:35:49

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 Re: distributor plug wires in reply to lrh, 09-23-2005 08:33:27  
Well back fireing and cutting out can be a carb problem or tune up dist problem.

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Texas Denny

09-23-2005 12:27:15

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 Re: distributor plug wires in reply to lrh, 09-23-2005 08:33:27  
The number 1 plug on the engine is closest to the radiator. The #1 on the distributor is supposed to be toward the radiator and toward the engine (about 10:30 facing front of tractor and looking down on cap). However, If done properly, the Distributor position could be anywhere. If you think it is wrong, find the top dead center compression stroke on #1 piston. Check the rotor and see which wire it points to. Adjust the timing by loosening the diostributor and slowly turning it in either direction till you find best position.

The backfiring is often caused by a bad distributor. Timing will not cause back firing. I'd do a full tune up - cap, rotor, points, wires, plugs and maybe even a new coil. Then see how it runs.

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