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Farmall & IHC Tractors Discussion Forum
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point gap

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nas-t

06-28-2005 18:49:56




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can anyone tell me the gap for the points on a gas 400, and the plug gap also thanks . i think it is 18-20 but just need a little help




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CNKS

06-29-2005 05:17:59




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 Re: point gap in reply to nas-t , 06-28-2005 18:49:56  
You can guess if you want. The correct point gap for a distributer is 0.020. Buy a set of feeler gauges, you will need them if you ever check your valve clearance, anyway. You might be suprised what other uses you find for them.



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John M

06-29-2005 03:40:53




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 Re: point gap in reply to nas-t , 06-28-2005 18:49:56  
19 points and 20-25 on the plugs. Buddy has the same tractor and thats what his "book" said.



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old

06-28-2005 20:56:19




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 Re: point gap in reply to nas-t , 06-28-2005 18:49:56  
The way I set most points it this. When you get a set of points they are in a box right? Well take a flip off that box and use it to set the points. Been useing that for years and it has never let me down. I have the guages but most of the time they have oil etc. on them and then thats trouble. The box flap works good and its so close it will not matter unless you are wanting a perfect thing and then no old tractor will be that with out spending big$$$$

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Nebraska Cowman

06-28-2005 19:03:21




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 Re: point gap in reply to nas-t , 06-28-2005 18:49:56  
one book here says .023 for the plugs. I'd say you are close on the points. old timers used to use a match book cover. I just set them by sight.



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Andy Martin

06-29-2005 04:48:27




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 Re: point gap in reply to Nebraska Cowman, 06-28-2005 19:03:21  
When I was a kid the old men all said to set points to the thickness of a well-worn dime. The nickel dimes don't wear like the silver ones, but years ago I figured out I could set them by eye and be close enough to get good performance, just a little thinner than a dime.

I like the cardboard box idea, but setting them by eye you can roll the cam past the points and judge where they are open the widest, regardless of wear, so for the old tractors I'll stick with eyeballing it.

Can't figure out how to do it on the Cummins diesel, though.

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