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8N WON'T START

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L. TOLLERSON

01-20-2001 14:12:17




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I HAVE A 52 MODEL 8N FORD TRACTOR THAT JUST WILL NOT START.IT WAS RUNNING UP UNTIL I PUT IT AWAY FOR THE WINTER. THEN DURING COLD WEATHER I TRIED TO START IT AND IT FIRED TWICE BUT WOULD NOT CONTINUE RUNNING. I CHARGED THE BATTERY BUT IT NEVER CRANKED AGAIN. NOW I HAVE REPLACED THE POINTS, CONDENSOR, ROTOR BUTTON AND SPARK PLUGS TO NO AVAIL. I ALSO CLEANED THE CARBURETOR. I AM GETTING GOOD SPARK AT PLUG WIRES AND ALSO GETTING FUEL TO INTAKE. NOW I'M WONDERING IF THE TIMING HAS SOMEHOW JUMPED OFF. HOW CAN I TELL IF THIS HAS HAPPENED. ANY HELP WOULD BE APPRECIATED.
L. TOLLERSON

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Dell (WA)

01-20-2001 21:26:30




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 Re: 8N WON'T START in reply to L. TOLLERSON, 01-20-2001 14:12:17  
Since the N-Engine has timing gears and not timing chains, its kinda hard to "jump time".

From what I understand about your effort to re-start the engine makes me suspicious about "sticky valves". I'd do a dry and wet compression test. Should be about 90 psi on all 4 cylinders. If low, I'd remove the valve covers behind the manifold and observe for sticky valves. If "sticky", I'd scrub and spray with a solvent of choice. I'd use "Marvel Mystery Oil", it works pretty good. Good Luck..... ..Dell

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bg

01-20-2001 20:19:45




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 Re: 8N WON'T START in reply to L. TOLLERSON, 01-20-2001 14:12:17  
Have you tried starting fluid? If it will fire off with starting fluid and then quit, you have a fuel delivery problem. The thing should start with the timing off a little bit. Unless you pulled the distributor shaft out, I doubt it would have jumped time.



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JimNC

01-20-2001 14:38:35




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 Re: 8N WON'T START in reply to L. TOLLERSON, 01-20-2001 14:12:17  
To check timing, take spark plugs out, put your finger down tight over #1 hole, rotate engine with ratchet until you feel the compression push agianst you finger, that will be pretty close to TDC compression stoke on #1, if you want to get it right on TDC put a little piece of wire in the hole and roll engine watching wire, when wire is up as far as it will go, take distributor cap off to see if rotor is pointing where #1 plug wire should be. Also check for sticky valves. Are you plugs wet with gas? Sorry, I have to ask though, is there water in the gas? Are you sure you are getting enough gas to the carb? Did something build a home in your intake system? To run they need air, fuel, heat(ignition source),is your spark thick and briliant bluish/white? Maybe this can get you started until the real experts get on.
HTH Jim

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L. TOLLERSON

01-20-2001 17:59:14




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 Re: Re: 8N WON'T START in reply to JimNC, 01-20-2001 14:38:35  
THANKS JIM. NO THE SPARK PLUGS ARE NOT GETTING WET WITH FUEL. BUT WHEN I TRY TO START IT AND CHOKE THE CARB GAS DOES LEAK FROM THE CHOKE LINKAGE SEAL. I ALSO DRAINED THE TANK AND CARBURETOR AND PUT IN FRESH GAS TO NO AVAIL. THE SPARK AT THE PLUGS WILL JUMP A 1/4 INCH AND IS BLUE SO I THINK I'VE GOT GOOD FIRE. AS FAR AS THE INTAKE, WHEN I TOOK THE CARBURETOR OFF THE INTAKE WAS WET UP INSIDE WITH FUEL. SO IF ANYTHING, IT'S GETTING TOO MUCH FUEL. BUT IT DOESN'T ATTEMPT TO START.

L. TOLLERSON

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JimNC

01-20-2001 20:50:24




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 Re: Re: Re: 8N WON'T START in reply to L. TOLLERSON, 01-20-2001 17:59:14  
If the plugs are not wet it is not getting any fuel into the cyls. Give it a shot of ether, if it fires start checking why you are not getting fuel up there.



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