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8 N won't start, this summer !

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johnny

06-21-2001 00:26:15

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I have a Ford 8N that was running like a top last fall and so far this summer I can't get it to hit a lick !
I forgot and did not turn off the gas valve and over the winter my gas went pass the carb and down into my oil pan.
I drained the oil/gas mixture and put in new oil and tried to start it several times with NO success.
I removed all of the spark plugs and they were
not wet or fouled, they looked pretty good,
so I hooked them back up and left them hanging over the exhaust manifold while I turned on the switch and pused the starter button.
I had a good spark on all plugs.
I had the carb rebuilt and tried again, NO luck.
I then took the plugs back out again and put my finger over each hole to check for compression and only #2 would act like it wanted to suck or push my finger away from the hole.
ANY INPUT ON THIS Problem ?????
Thanks, Johnny

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ferrell freeman

06-21-2001 06:50:28

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Re: 8 N won't start, this summer ! in reply to johnny, 06-21-2001 00:26:15

Also I, check the float in the carbutor . That Marvels mystery oil works wounders on stuck rings and when get them unstuck run a pint though the carbutor it will some of the carbon off the valves.

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Dell (WA)

06-21-2001 00:47:01

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Re: 8 N won't start, this summer ! in reply to johnny, 06-21-2001 00:26:15

Johnny..... .ya lost yer compression. Which you've already figgered out.

What you've got is sticky rings and valves. Not too uncommon for an over winter thing to happen.

Heres the trick, get some Marvel Mystery Oil, one of the few additives that I think is worth the money. Pour about half a can in the engine oil. Put a couple of squirts in each cylinder and fire up as fast as you can with a squirt of ether quick start in the carb throat.

The squirts of oil will seal your rings enuff to raise the compression and the ether will make it fire off and smog all the skeeters. Once you get the engine running the rings will unstick themselves because of the MMO in the crankcase oil.

After running for about an hour, you should be good to go. Remember to change your oil more often and use the fuel shutoff valve..... ..Dell

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Dave Smith A question for dell or who ever

06-21-2001 03:36:04

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Re: Re: 8 N won't start, this summer ! in reply to Dell (WA), 06-21-2001 00:47:01

Johnny said his gas leaked through the carburator and into the oil pan. On a up draft carburator wouldn't it just leak out to the ground. To get to the oil pan wouldn't it have to fill the carburator, manifold and the air intake tube? Then thrugh the valves to the pistons to the pan.
Dave <*)))><

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Salmoneye-Yup

06-21-2001 04:25:36

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Re: Re: Re: 8 N won't start, this summer ! in reply to Dave Smith A question for dell or who ever, 06-21-2001 03:36:04

That is just how it happens.
If this were my tractor, and I had already figured out that I was getting little or no compression in the cylinders, I would sooner suspect valves sticking open. If the gas gravity fed to the cylinders, I suspect it washed down all the leftover lube on the valve stems. First time you crank in that situation, the valves go up and do not spring back down.
I would pull the inspection covers, and watch the valve action while turning the engine by hand.
It is easy to see sticking valves this way.
If they are stuck up, spray the stems with a penetrant and gently pry them back down. Spray again and turn the engine. Repeat until all valves go up and down freely.
If you look at the valves and they are not hanging up, then simply replace the inspection covers and follow Dells' suggestion of Marvel Mystery Oil in the cylinders...

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johnny

06-21-2001 01:53:28

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Re: Re: 8 N won't start, this summer ! in reply to Dell (WA), 06-21-2001 00:47:01

Thanks Dell !!!!!
I will try that and let you know.
Johnny

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