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Allis Chalmers Discussion Forum
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Model D, D17 engine speed very high or off why

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Santiago Martinez

02-15-2008 09:48:43




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Have a model D grader with D17 engine, while blading my road all of a sudden the engine started running faster than it has ever had and would not go down in engine speed without the engine almost stopping, just one step with the throttle and it was racing high again. my brother says its possible the carb. Please, I need help where to look, and get this workhorse back to working. Road is bad and needs attention. Thanks for any info or suggestions

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mlpankey

02-17-2008 15:52:12




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 Re: Model D, D17 engine speed very high or off why in reply to Santiago Martinez, 02-15-2008 09:48:43  
as said in this post and in 170 gov post i bet its the weights . running the engine without checking the weights will cost you a cam gear. i pull tractors and its happened 3 times in three years.



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santiago martinez

02-18-2008 13:00:25




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 Re: Model D, D17 engine speed very high or off why in reply to mlpankey, 02-17-2008 15:52:12  
Thanks, I took it apart today, and found no weights on the govenor assembly, only one pin was there, no clips and the place where the pins go one side was totally broken off, the other side cracked, i also found many teeth missing from the timing gear. I"d bet the weights had alot to do with that huh. Since you"ve had to replace the same parts(seems like) where did you get them from???? guess I"d better start lookin for some parts. ENGINE # 17-77543-M

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mlpankey

02-20-2008 11:12:44




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 Re: Model D, D17 engine speed very high or off why in reply to santiago martinez, 02-18-2008 13:00:25  
yeap know barney well talk to him at least once a week . i have his number at home. call me after 5 pm eastern and ill give it to you. but you can rebuild youre gov for less money but youll still need a press on gear it sounds like.



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mlpankey

02-18-2008 17:54:53




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 Re: Model D, D17 engine speed very high or off why in reply to santiago martinez, 02-18-2008 13:00:25  
well i got the new weights from agco dealer. and got the timing gear from a junk yard. i have three timing gears that bolt on the cam.



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santiago martinez

02-18-2008 19:00:53




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 Re: Model D, D17 engine speed very high or off why in reply to mlpankey, 02-18-2008 17:54:53  
Thanks for the info. I have to wait till the weather is nicer so I can tear it all apart. I have no garage and the wind and cold are bad. I believe my cam does not use the bolt on gear. Upon making calls today One guy told me about a person "BARNEY TAYLER" who could possibly have the complete govenor assembly with weights and maybe even the right cam timing gear. Does anyone know of BARNEY TAYLER? and how to get ahold of him? Someone else said the same govenor assembly fits a WD45 and d17 is that right?

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Rick Corder

02-17-2008 14:17:59




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 Re: Model D, D17 engine speed very high or off why in reply to Santiago Martinez, 02-15-2008 09:48:43  
Sounds like a pin came out of one of the governor weights. Had that happen to me a couple of times on a D17. You might want to check into that right away. Rick



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Don, BC

02-17-2008 11:44:59




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 Re: Model D, D17 engine speed very high or off why in reply to Santiago Martinez, 02-15-2008 09:48:43  
I have had similar poblems with my D Grader but it does not seem as severe as your's. I was able to improve on the problem by puting a slight bend in the linkage between the carb and the govenor arm. I agree that you should take the front cover off your govenor and check the weights. If a weight breaks free it can get into the timing gears and cause real damage.



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Deranged

02-16-2008 13:07:11




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 Re: Model D, D17 engine speed very high or off why in reply to loveshisallis, 02-15-2008 09:48:43  
By springs I meant the ones in the governor, which could affect this issue.


Kentb of SWMO said: (quoted from post at 15:42:12 02/16/08) NOT a spring issue. The spring is whatopens the carb. You have something wrong with the weights in the govener housing. Time to open up the front of the engine which would be at the rear on you blade.
Kent

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Kentb of SWMO

02-16-2008 06:42:12




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 Re: Model D, D17 engine speed very high or off why in reply to Santiago Martinez, 02-15-2008 09:48:43  
NOT a spring issue. The spring is whatopens the carb. You have something wrong with the weights in the govener housing. Time to open up the front of the engine which would be at the rear on you blade.

Kent



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Santiago Martinez

02-15-2008 17:21:22




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 Re: Model D, D17 engine speed very high or off why in reply to Santiago Martinez, 02-15-2008 09:48:43  
Thanks I will take it apart tomorrow and ck out the springs. I guess this would also cause it to run slow at times no matter how much you increase the throttle. I thought it was the carb getting plugged or bad gas.



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Deranged

02-15-2008 11:09:12




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 Re: Model D, D17 engine speed very high or off why in reply to Floyd352, 02-15-2008 09:48:43  
Doubt it is an issue with the carb. It sounds like the spring or the weights in the governor are the issue.

Santiago Martinez said: (quoted from post at 18:48:43 02/15/08) Have a model D grader with D17 engine, while blading my road all of a sudden the engine started running faster than it has ever had and would not go down in engine speed without the engine almost stopping, just one step with the throttle and it was racing high again. my brother says its possible the carb. Please, I need help where to look, and get this workhorse back to working. Road is bad and needs attention. Thanks for any info or suggestions

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