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D17 Series IV Diesel


 
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Trst22
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PostPosted: Thu Aug 04, 2022 1:17 pm    Post subject: D17 Series IV Diesel Reply to specific post Reply with quote

I bought this at an auction, they said it ran but the fuel stop on the pump wasnt working. I fixed that little problem but the engine would not turn over, took starter out and bench tested it, it was good. Now I was worried engine was froze but luckily it turns freely. Now to the question, I decided to pull the tractor (pop start) to start it without the starter ( in 4th high selected) when I let the clutch out one rear tire turns backwards. Nothing seems bound up, even in gear with power director in neutral the tractor will roll just fine, or if I have clutch pushed in with it in any gear and power director engaged it rolls fine, could it be the engine has such good compression its causing the rear wheel to do this not allowing me to pop start it? My Series 3 Diesel doesnt do this, any suggestions? Also I pulled out the injectors to have less resistance with compression and the rear wheels did the same thing, moving in opposite directions, what would be the cause of this?
 
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504
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PostPosted: Thu Aug 04, 2022 2:26 pm    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

Sounds like the transmission is locked up if you can turn the motor over. It might be stuck in two gears,you would need to pull the shifter and move the shift rails into neutral.
 
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Trst22
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PostPosted: Thu Aug 04, 2022 3:22 pm    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

I think Ill give that a try, thanks. At least thats something easy to try.
 
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Tramway Guy
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PostPosted: Thu Aug 04, 2022 6:55 pm    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

If one or both of the clutch packs in the Power Director is stuck, that could cause that. Try pulling it in Low range.
 
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DrAllis
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PostPosted: Fri Aug 05, 2022 6:15 am    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

If you had the transmission in 4th, power director clutch in high side, and foot clutch depressed fully, and the tractor rolls freely, there is absolutely nothing wrong with the driveline. Nothing !! You say the engine is free, but I'll bet you didn't actually turn it over TWO COMPLETE revolutions, right ??? It's an engine issue or you're sliding bald rear tires on gravel.
 
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Trst22
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PostPosted: Fri Aug 05, 2022 6:34 am    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

I turned the engine over 3 to 4
times and the tires are pretty much
new.
 
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DrAllis
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PostPosted: Fri Aug 05, 2022 8:03 am    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

As per your own words, there's nothing wrong with the driveline. And if the engine has been turned over two full revolutions, it should be free enough. More weight on the rear wheels and on hard surface. Doesn't have a loader on it, does it ?? Pull the starter out of it so there's no chance the starter drive isn't locked into the ring gear.

This post was edited by DrAllis on 08/05/2022 at 09:05 am.

 
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BonaparteSouth
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PostPosted: Fri Aug 05, 2022 12:47 pm    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

.
when you say turn 3to 4 times you mean complete revolutions right. next if someone is there to help disengage pto and power director in neutral and trans in neutral see if pto turns by hand. if it does does it turn if you put pto in gear but hold foot clutch down. remember the hyd pump is live off of back side of flywheel and turns all times motor turns. when you turned motor was it correct direction. it is possible the output from pump is hydro locking it somehow if it can't flow away from it!! good luck and keep us posted so we learn from this also.
 
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DrAllis
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PostPosted: Fri Aug 05, 2022 1:56 pm    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

Just how are you "turning the engine over" ??? You cannot do it by grabbing the fan blades and pulling on them.
 
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Trst22
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PostPosted: Fri Aug 05, 2022 6:33 pm    Post subject: Re: D17 Series IV Diesel Reply to specific post Reply with quote

Quit simple, with the starter. The
battery was weak but definitely
turning the motor over. Hence I
took out the starter again to try
and pop start it, just in case the
starter was sticking.
 
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