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JD H runs good starts hard : Act 2

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JOE

01-10-2000 16:17:02




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I resently asked about my H that runs very well once started but is very hard to hand crank. I reseaved some good suggestions and checked them all. After a morning in the shop the suggestion to advance the timing seemed to fix the problem, but today the same thing is happening. I have checked the compression and although it is down a little, it is even.The mag is giving good spark to both sides and she is getting fuel.It will start on the right cylinder(clutch side) first and if it will run a few seconds the left will start. It seems to do this even when pulled. She will start after being pulled a short distance.SEND HELP. THANKS. JOE

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Al

01-11-2000 14:51:17




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
When I was a little kid Dad had this same trouble with his H for years. Usually started best (and that was terrible) with the throttle almost or completely dead slow. One summer while Dad was away I took the carburetor off just to peek inside. I was a bout a 7th grader that figured he wouldn't make it start any harder than it did now. Even if it did, Dad wouldn't know I caused it. The H choke plate has an oblong hole in it and that hole is supposed to have a sheetmetal flap under spring tension over it on the engine side when the choke plate is closed. That flap was broken off of Dad's H. I scrounged up some sheet metal & with tin shears, hacksaw, filing, bending and hammering was able to fashion a new one that worked. Not quite like the original but it did and still does work. We still use that H. Has started great ever since that new part was added over 30 years ago. To see if this is perhaps your problem, set the choke, remove the pipe from the front of the carb and shine a flashlight down his throat. If you see an open oblong hole in your choke plate you've found your hand starting problems. Using the log chain starter creates more air flow & the broken plate chokes enough to start it. With the hole open it won't choke hard enough to start by hand. Yes Dad's too usually started on one & weakly got to hitting on both. I hope this helps.

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Deere2931

01-10-2000 20:25:15




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
Joe take Deere1's advice on plugs and then take that H out and work the heck out of it for about 4 hours, thats whats wrong with about half of thease tractors, to much starting, stopping and ideling,washed down cyl walls, gumed up rings etc, wish you were close we'ed put it on my baker fan for about an hour and you would see a great difference in it, we over haul the engines and half the time the rings never get seated good,if at all, but the ole fan will seat them. Make sure you have clean oil in it before running it hard. Try it and let me know how it works out.

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HMan

01-11-2000 18:15:57




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 Re: Re: JD H runs good starts hard : Act 2 in reply to Deere2931, 01-10-2000 20:25:15  
As most can tell I'm pretty "green", that being said I'd like to know what a baker fan is and what it does. Hope I'm not the only one in cyber world that doesn't know! You are right about these tractors not being worked, that's what they need.Too much putt-puttn'going on. Thanks



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Deere1

01-10-2000 20:00:24




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
it may sound silly .but throw the autolites as far as you can and put in a set of AC C88L or C87L they are about $5.00 each .they may be a little hard to find but still made , went through all you are and the plugs solved it .. and putt soooo much smoother ,,, you wouldn't beleive the differance !!!! copper core wires should be on it also !Deere1



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HMan

01-10-2000 19:22:17




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
If you've tried all the "tricks" the others suggested and none of them worked, you might have valve problems. Two clues, sitting for years and the compression a tad low. Just another thought.



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clooney

01-10-2000 17:22:58




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
Joe, do you have or another tractor that you can remove the mag. from & try the mag. in this tractor. a WICO "c" OR WICO"x" WITH A SHORT COUPLING WILL WORK. That will save a lot of guessing on our part & save you a lot of time.



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JOE

01-10-2000 17:52:16




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 Re: Re: JD H runs good starts hard : Act 2 in reply to clooney , 01-10-2000 17:22:58  
Clooney. I did put new autolight 388 plugs in this morning. This tractor sat inside and was not run for several years, so the rings could be sticking. Is there a treatment for this? I have a buddy who has a mag that I know is good and can borrow. I will give it a try. My mag was rebuilt by a pro but I guess that does'nt always mean much



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clooney

01-10-2000 17:59:21




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 Re: Re: Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 17:52:16  
Joe, have you put new gas in it. I don,t know what climate you live in but in cold states the gas is blended different for cold weather starting.(more light ends) If it still has summer gas in it could make a difference (not drastic though)



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Steamer

01-11-2000 11:46:07




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 Re: Re: Re: Re: JD H runs good starts hard : Act 2 in reply to clooney , 01-10-2000 17:59:21  
Well, I've had summer gas cause complete disfunction of my 420C in the winter in upstate NY! I went nuts one time trying to get it to start - replaced nearly the whole crawler (well, the ignition parts, anyway). Once I drained out the 'fall' gas and put in new winter gas, it started right up. Ever since then, I drain out the gas at the beginning of December and load it with new (winter) gas. That fixed that problem. I also noted the same kind of difference in the pump diesel as well.....

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Ernie D

01-10-2000 18:48:08




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 Re: Re: Re: Re: JD H runs good starts hard : Act 2 in reply to clooney , 01-10-2000 17:59:21  
Clooney, I am with you on the gas.



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clooney

01-10-2000 17:02:58




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
Joe, the first that thing came to mind when I read your post, is the "H" is starting on fouled plugs. Have you tried new plugs (since advancing the timing etc.) if they became fouled because of hard starting before & you haven't worked it hard enough to clean them, they might be the problem. You could also have sticking rings that don't free up until its run for a few strokes. Could be as simple as over choking or a weak coil in mag. Take old spark plug & bend center electrode to get about .060" gap then put it on ign. wire ,then lay on head & see if spark will jump it cold. Also take old spark plug & braze a fitting in it that will fit your air hose, install in one cyl. at a time, bring piston to TDC with valves closed put in high gear, set brakes, block all wheels, put in about 50 lbs. air pressure & see where air comes out. That will show if rings or valves are leaking .

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MikeH(Tx)

01-10-2000 16:36:20




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 Re: JD H runs good starts hard : Act 2 in reply to JOE, 01-10-2000 16:17:02  
Joe, I read all the suggestions from the earlier posts. I too am learning about how my H starts and runs. Mine starts easily (first twist of the flywheel) if I first shut it down right. How are you stopping yours? If you choke it to stop it, you will see the symptoms you describe. Flooding this tractor takes at least a day to fix by evaporation. If you first throttle down to idle, then further squeeze the governor butterfly shut, or twist the idle adjust screw to stop the tractor, you will leave the plugs dry. Really helps mine.

Could this be your problem?

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Spokerd1

01-10-2000 17:06:18




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 Re: Re: JD H runs good starts hard : Act 2 in reply to MikeH(Tx), 01-10-2000 16:36:20  
Joe if I read you right you said something about it will start on the right and in a few min it will pick up the left. Try some new plugs and copper or steel wires. Take the Mag apart and clean all the rust out from inside. Also clean the points with Alcohol and a Q tip. This will remove any oil that might have gotten on the point from your fingers. As far as the Plugs use Auto-lite or AC's They seem to run better in the Deeres. There should be a small bolt that you set at an Idle that will let you pull the throttle back and it will kill the H. Some times they just want to run when the throttle is all the way pulled back. On the Mag make sure that the lag angle is set on the third mark from the left.

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JOE

01-10-2000 16:47:30




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 Re: Re: JD H runs good starts hard : Act 2 in reply to MikeH(Tx), 01-10-2000 16:36:20  
Mike. When I stop my tractor, I cut throttle back and shut the gas off and let it run out but they do seem to have a mind of there own.



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curt

01-10-2000 16:42:17




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 Re: Re: JD H runs good starts hard : Act 2 in reply to MikeH(Tx), 01-10-2000 16:36:20  
try somr new plugs, no champions though.



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