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Farmall & IHC Tractors Discussion Forum
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same old distributor problem

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williamf

10-23-2006 13:41:50




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We finally had a cool damp mornig one day last week and the old H played hard to start. Doesn't pop a peep. It'll flood easy, too, but that's a matter of using the lightest touch on the choke. Cold doesn't seem to make much difference but if the tractor is sweaty all over from the condensation it's probably going to be hard to start. I finally got it to run, but it took a lot more fiddling than I'd like.
Last year I decided the dist. cap was part of the problem. It was old, weathered and the aluminum posts inside were chipped, scorched, and corroded. Now I have one that's new, shiny and the aluminum posts inside are chipped, scorched, and corroded.
On the off chance that there's a connection between the condition of the cap and the failure to start on damp days I've decided to get another. I think I have read here that dist. caps for these tractors are available with copper rather than aluminum connections. If anybody thinks they're better I'll go for it. If I can find them. Thanks, Wm

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riverbend

10-23-2006 20:52:38




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 Re: same old distributor problem in reply to williamf, 10-23-2006 13:41:50  
Use the round end on your points file to chip the oxide off the terminals. You might also give the plug wires a shot of the silicone spray. It helps keep them from arcing in wet weather.



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Janicholson

10-23-2006 13:48:52




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 Re: same old distributor problem in reply to williamf, 10-23-2006 13:41:50  
They do last longer, and cu has better conductivity than Aluminum (though no difference in this app) I would spray the inside of the cap with high quality silicon spray (CRC or other that is suitable for technical rather than home owner use). This keeps the condensation off of the inside. I would also use a blow drier on the coil tower to drive off water and spray that as well when dry. JimN



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williamf

10-23-2006 14:26:20




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 Re: same old distributor problem in reply to Janicholson, 10-23-2006 13:48:52  
Thanks, I was hoping there was a product that would help. I like products.
We get CRC brand stuff from Shops&Stores at work. Their aerosol degreaser is better than any other I've found. None of that "foam on and rinse." It just blasts the crud off.
Wm



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old

10-23-2006 15:00:41




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 Re: same old distributor problem in reply to williamf, 10-23-2006 14:26:20  
Its also a good idea to replace the rotor when ever you replace the cap. I've seen more then one cap or rotor have a hair line crack in them and then when its wet out you can't fire the engine up. One way to find out if its a cracked cap is to turn the engine over and hold your hand on the cap. If its cracked you will know if real real fast becuase you will jump about 5 foot. BTDT nad yes it works to find a cap problem but its also not fun to do it that way. Years ago we had a GMC pickup that would get that way when it was wet out and 90% of the time it was a cap/rotor problem on it and thats the way I figured out the problem. Its something you will only do once

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williamf

10-23-2006 18:52:27




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 Re: same old distributor problem in reply to old, 10-23-2006 15:00:41  
I did that troubleshooting my chain saw a while back. Took out the plug and held it against the engine with one hand, pulled the rope with the other. As you say, only once.
Wm



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kfox

10-24-2006 04:26:57




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 Re: same old distributor problem in reply to williamf, 10-23-2006 18:52:27  
I've noticed that the origional IH caps had 3 holes in the bottom. I think this was to get rid of the ozone inside the distb. Ozone is very corosive to metal parts. The rotor spinning inside the cap would act like a pump, pulling air in and pushing it out the holes. I'm tempted to try drilling holes in a new cap. ken



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