Posted by Grandpa's Fords on April 20, 2018 at 06:34:20 from (50.107.163.6):
In Reply to: Kubota B7500 Continued posted by Mnethercutt on April 19, 2018 at 08:40:08:
"Dad said it smoked when he tried to start it this morning. I don't know why any of those other things would've been off. I don't think it has glow plugs. The tractor hasn't given us any other trouble so I'd be surprised if compression was the issue. Seems to have good flow up to the filter for fuel. I dont know about after the filter."
That sounds like glow plugs
But, you stated ran for an hour limped back restarted after an hour after it cooled down
Not a glow plug related issue although have to agree they start much better using the glow plugs.
Now As Steve Questioned
"Are you getting fuel to the injectors?"
If this a fuel problem crack one of the fittings,(while cranking) I can't remember if mine had a bled screw? but if you have good flow with out air. It should run, If it doesn't then there is something else going on.
Like Steve@Advance posted, follow his line of diagnosis, try to answer his questions.
My personal experience is that I had B7500 for 17 years and wish I still had it, but sold it to get a bigger tractor.
I had aftermarket fuel filter issues returned to kubota brand solved it.
Fuel cap vent plugged clean the vent solved.
They really don't like dirty air cleaners dramatic smoke and power loss. Make sure you check or change both.
Never had a glow plug fail but originally used to think I would use them up if I used them all the time. Got over that much easier on engine to use regularly.
Had a wire connection corrode for the fuel solenoid cleaned replaced connector -solved. Also used several other pieces of equipment that had Kubota engines the largest issue of all was failure of the fuel solenoid but mostly because of wiring problems.
Only real complaint was that I would have to blow the radiator out couple times when mowing alot. just had to learn to keep it clean.
Ken Macfarlane's post
I'm assuming you've bled it properly following service?
Answer some of these questions and I'll bet someone on here will point you to a solution. They've helped me solve a few.
The more information you can give the better the answers will be.
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