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8n - Sputters under load - Radiator problems

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mrdeschep

05-29-2007 11:42:32

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Guys, having problems with my 8n. Haven't been to the site in many months as I have had to other things going on and couldn't devote time to the tractor. Briefly, had an old 8n that was given to me by an uncle. With the help of you guys, I brought her back from the dead. Did a complete carb rebuild. After 3 cleanings, I finally got it. Then I fixed an intake leak problem. Now, I keep running into a problem. The tractor got a little hot when my brother was runnig it. It was always a little under powered but now I am having more problems. It doesn't like to run under a load. It will sputter an almost die, but then shape up and go. Then will sputter again. The governor appears to be working. Even pulling out from a dead stop, it will sputter and want to die. Also, when it does this, the radiator will start to spit at me. When it got hot before, it boiled over with black sludge. Now, it appears to be clean but still spits at me. Do any of you have a clue as to my tractor's problem?
Thanks.

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rogger '40 9n

05-29-2007 12:08:43

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Re: 8n - Sputters under load - Radiator problems in reply to mrdeschep, 05-29-2007 11:42:32

Your radiator problem might just be overfilling.
You should just fill it to the top of the cores.
The rest of the tank is for expansion. If you do overfill it the extra will just go out the over flow (and look like it is boiling). That problem will fix itself.

That might explain your other problem -- when the radiator is overflowing it might be getting water on your distributor and shorting out some sparkies. (That is if you have a front mount distributor)

You could have a fuel starvation problem -> did you check all three filters? You should get a good fuel flow from the drain plug in the carb.

Low power could also mean spark plug wires are not on the right plugs. Often 3 and 4 get switched. The firing order is 1243 number 1 being closest to the radiator.

Roger in Michigan

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Dell (WA)

05-29-2007 12:00:05

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Re: 8n - Sputters under load - Radiator problems in reply to mrdeschep, 05-29-2007 11:42:32

Schep..... .you write..... "It doesn't like to run under a load. It will sputter an almost die, but then shape up and go. Then will sputter again. The governor appears to be working. Even pulling out from a dead stop, it will sputter and want to die"..... ..check yer FIRING ORDER, 1,2,4,3 CCW. These N-Engines are so great that they will run on just 2-cylinders. Usually its sparkies #3 & #4 gitt swapped.

Altho it could be WEAK SPARKIES, most commom cause of weak sparkies besides the points, is yer weaksister ignition switch. $10 (cheap) REPLACE IT ennysways, cheap insurance.

As fer yer radiator spittin'..... .DON'T OVERFILL, cover the tops of the tubes and allow for expansion ...or... fill to top and letter EXPAND and spitt all over yer distributor and cause missin' until it drys, then NEVER OVERFILL AGAIN. Simple, eh?..... ..Dell

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mrdeschep

05-29-2007 12:20:27

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Re: 8n - Sputters under load - Radiator problems in reply to Dell (WA), 05-29-2007 12:00:05

I had a bad ignition switch on it before, but have it bypassed right now. Running a wire from battery to coil. Any suggestion on the sputtering if it is not firing order or weak spark? Under normal slow speeds, it seems to run like a champ. When it gets under a load, or pulling out from a dead stop, I get the sputter. This happened even before I got a damaged plug wire.
Thanks.

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mrdeschep

05-29-2007 12:14:45

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Re: 8n - Sputters under load - Radiator problems in reply to Dell (WA), 05-29-2007 12:00:05

Thanks for the input. The radiator is currently over filled based on your input. I know for a fact that the engine is only firing on 3 cylinders. One plug wire got lose and rested on the exhaust manifold. Pulled the plug and it was wet with fuel as if not firing. Two fixes down, but even when the plug wires were new it was still sputtering like this a little. I too thought of firing order. I have checked it about 18 times. I will make these quick fixes before I run her again, but any ideas if the problem persists?
Thanks.

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Dell (WA)

05-29-2007 12:29:59

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Re: 8n - Sputters under load - Radiator problems in reply to mrdeschep, 05-29-2007 12:14:45

schep..... ..geeze..... whadda'ya want??? egg'n'yer beer???

Based upon YOUR descriptions, I gave you 3-things to check. Check'em!!! Then iff'n you STILL have problems, describe them BETTER..... .respectfully, Dell

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Ramrod

05-29-2007 13:26:47

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OT : 8n - Sputters under load - Radiator problems in reply to Dell (WA), 05-29-2007 12:29:59

Do people actually put a raw egg in their beer? Is that a hangover remedy, or a redneck breakfast thing? Oh wait, I would'a had one if it was a redneck breakfast...

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Bob Harvey

05-29-2007 18:11:43

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Re: OT : 8n - Sputters under load - Radiator probl in reply to Ramrod, 05-29-2007 13:26:47

Yep!, a little Tobasco helps....ALL the basic food groups. REMEMBER, Beer isn't just for breakfast!

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Ross Pugh(NC)

05-29-2007 14:51:17

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Re: OT : 8n - Sputters under load - Radiator probl in reply to Ramrod, 05-29-2007 13:26:47

I don't know. I have drunk a whole lotta beer in my lifetime and I Nor anyone I know ever had egg in their beer, or wanted it, for that matter. I have always just heard that phrase.

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Dell (WA)

05-29-2007 19:08:39

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Re: OT : 8n - Sputters under load - Radiator probl in reply to Ross Pugh(NC), 05-29-2007 14:51:17

Guys..... .the egg is hardboiled pickled in red beet juice and vinegar. (quite colorful and tasty) Pickled eggs and beer are great METHANE generator, so yer best not be fer smokin' inna the outhouse, giggle..... you guys are so WET behind the ears..... giggle.....Dell..... varooom

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TXMarko

06-01-2007 13:18:09

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Re: OT : 8n - Sputters under load - Radiator probl in reply to Dell (WA), 05-29-2007 19:08:39

LOL you guys crack me up!!

Dell, I never tried the beet juice, but have ate the boiled eggs that sat for over a month in jalepeno pepper juice like someone else mentioned.

We cut them open and the yolk was green as all get-out.

They were hot enough to feel both comin' and goin'.

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Ross Pugh(NC)

05-30-2007 07:13:51

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Re: OT : 8n - Sputters under load - Radiator probl in reply to Dell (WA), 05-29-2007 19:08:39

Hey, now Dell, Iddone those good old pickled eggs many times, they are good with beer. Not just in bet juice, but also good in pickled jalapeno juices. That will make ye remember tomorrow, what ye ate today. May have to cr_p in the creek!!

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