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Farmall & IHC Tractors Discussion Forum
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Tips starting 650 Diesel that been Sitting Years

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migraine

10-20-2007 07:30:45




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Got the 650 Diesel Home and want to get it running. Has set for about 8 years but has been turned over regularly with crank. Turns over kinda hard but thats a big motor to crank I guess. Here is what I have done so far. Changed oil and filter, flushed radiator that was pretty dirty, changed fuel filters and cleaned housings and ran new fuel through bleeder valves. Got power to the points and cleaned points and plugs. Cleaned carb lines and drained some new fuel through. All the fluids except oil were drained from the tractor when it was parked. So what else should I do before trying to fire it and should I try to pull it and start it on diesel first. Manuals are on the way but I wonder which way the fuel lever is on gas and which way on diesel. Also there is a knob that says fuel on it that turns a rod in the carb. What does that control? I have a M-Diesel but a lot of things are different on this big brute. Thanks for any help. Migraine

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Ron in Nebr

10-20-2007 11:13:15




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 Re: Tips starting 650 Diesel that been Sitting Years in reply to migraine, 10-20-2007 07:30:45  
Also- a good idea would be to drain and refill the oil in the injection pump. A large percentage of these have bad seals from the primary pump and will fill the injector pump housing with deisel. Prolonged running with diesel instead of oil or heavily dilluted oil in the pump will ruin the pump, and also if it leaks pretty bad and is never drained it could get full enough to leak past the front seal, causing the engine crankcase to get deisel in it. The injector pump uses the same oil you have in the engine.

If your pump does indeed have diesel in it, go to the Red Power site and do a search for posts by a guy called "MB_Cat" I believe. He has a post about how to replace the primary pump seal to cure this. The post has pictures as well as the IH part number for the seal. It's still available, I got one a couple years ago for my 650D.

Another note- whenever your not trying to start or run the tractor, leave the fuel switchover lever in the deisel position. If it's left in the gas position it'll run the battery down....guess how I know that???:)

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El Toro

10-20-2007 08:34:53




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 Re: Tips starting 650 Diesel that been Sitting Years in reply to migraine, 10-20-2007 07:30:45  
I would see if it will start on gas. Hal



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Wardner

10-20-2007 08:13:11




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 Re: Tips starting 650 Diesel that been Sitting Years in reply to migraine, 10-20-2007 07:30:45  
The gas/diesel lever is up for gas and down for diesel.

The turning knob that goes to the carb is the gas throttle. Left is slow -- right is faster. There is also a choke knob that is push/pull.

If you think all systems are go with the gas side, go for it. If everything is functioning correctly, it should start within a couple of seconds. If it won't start on gas, pull start it in diesel. After it is warm, switch to gas and see if it will run. If it doesn't run at that point you can probably determine whether you have a gas or ignition problem.

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migraine

10-20-2007 17:41:06




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 Re: Tips starting 650 Diesel that been Sitting Years in reply to Wardner, 10-20-2007 08:13:11  
Thanks Guys. Yes I did check the oil in the pump and the lower bleeder had good straight oil in it, no diesel that I could see. Then I added just enough fresh oil to get it out of the upper bleeder so I should be good to go. Hope to give it a tug next week late in the week and see what we got. Thanks



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