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70 diesel...ITS ALIVE !!!!!!!!

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TB SCOTT

05-12-2003 09:24:30




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Thank goodness it was a crappy weekend I had a chance to work on #7042996...disregard previous serial number post...that was the one my dad had. This tractor has sat minimum 5 years although it was sunken enough in this old barn looked like 10. After changing oil in both engines it was time to try spark...no spark...a read-through in manual said I should have juice to terminal on side of distributor...no juice. Rather than try to track down wiring problem in dash I ran a jumper from battery to terminal causiously as I am afraid of coil meltdown. The red dash light came on and spark occured...huh. Spitting and sputtering the pony tried a gallant effort to rev but to no avail, even with good gas. A check with the governor spring showed why, seems the spring broke at one time and a wire was hooked to wrong location on throttle. A change in spring and correct location would allow throttle to open. Reconnect jumper wire and try again....HOORAH!!!!pony roared to life with surprisingly little smoke. It will only run when the choke is clear to the choke position but its very promissing. I suspect a good carb cleaning is in order. After letting the pony run for appx 5 minutes on start it was time to fire the diesel. Engaging the lever the gear clashed on the flywheel and would only engage when pony is at super low rpms...but got it engaged and motored the diesel over for 1 minute to build oil pressure and lubricate 10 years worth of no lubrication. A release of the decompression lever and moving the throttle the diesel barked right off! YEAH HAAAAA A !!!!! !! After running 10 minutes with no leaks it was time for the test drive rain or not. What a machine !!! power steering even works. Sorry for the long post but I am so excited I had to come off cloud 9 to type. I know a alot of work is in store but ITS ALIVE !!!!! !!!!!

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Gary U in NJ

05-14-2003 12:51:28




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 Re: 70 diesel...ITS ALIVE !!!!!!!! in reply to TB SCOTT, 05-12-2003 09:24:30  
Congrats!
I'm on the same high you are. I just got my 70D running for the first time a couple of weeks ago and still have the same excitement.

My wife was standing next to the tractor and asked how she would know when the main engine was running (would she hear it over the pony). I reassured her that there would not be any confusion between the two. I still remember the look on her face.....and then the big smile - it was pricless after all the work that went into it!

Gary
Hopewell NJ

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F-I-T

05-12-2003 19:48:34




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 Re: 70 diesel...ITS ALIVE !!!!!!!! in reply to TB SCOTT, 05-12-2003 09:24:30  
TB:

Great news for you !

I felt the same way when I got my '70' out her 20 year hibernation.

Careful running those coils on straight 6 volts though, or they won't be long for this world! You could put that resistor from the switch right down on the distributor terminal and clip your jumper to that. That way you'll be reducing the voltage appropriately. You won't be getting the straight 6 volt bypass voltage during cranking (unless you have that wire running from the starter switch to the distributo directly), but it will probably fire that way. I ran mine that way for several months until I could get the wiring straightened out.

Deere still sells the carb kit, and it's not very expensive....I think like $12.00. If your pony carb still has the old cork float in it, buy a new one. Lots of carbs have been plugged up by old cork floats.

Try some fresh Champion J8C's and clean those points. That might be enough to get it to rev up. Might not be the carb, but it likely needs cleaned like you say.

Keep us posted !

Frank-in-Tallahassee
70D (#7033924) // 855

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