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bolens ht20d

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#1 1967bolens collector OFFLINE  

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Posted December 22, 2012 - 07:59 PM

on my ht20 diesel with the wisconsin 800, below a certin R.P.M the engine reves to the right rpm then almost dies i call it a "rolling idle" like with a detroit diesel. i put fresh no2 fuel in it, fuel filter and air filter. is there a way to adjust the govenor? if you have any info please help. thanks, sam

#2 MH81 ONLINE  

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Posted December 22, 2012 - 08:05 PM

I know less about diesels than I know about women... but is there any slop in the linkages, linkage holes, butterfly shaft?
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#3 1967bolens collector OFFLINE  

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Posted December 22, 2012 - 08:06 PM

no all tight.. i think it may be a weak spring or something. i dont want to take it apart until i know my options

#4 1967bolens collector OFFLINE  

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Posted December 23, 2012 - 09:57 AM

i guess no1 knows :(

#5 HDWildBill OFFLINE  

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Posted December 23, 2012 - 11:14 AM

Sorry I'm with Alan, I don't know much at all about diesel's. If it were a gas engine I would say your idle circuit if restricted or plugged.

#6 OldBuzzard ONLINE  

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Posted December 23, 2012 - 03:15 PM

Alan, try down here:

http://gardentractor...nversion-forum/

That's where the "Diesel Guys" hang out :D :D :D

#7 1967bolens collector OFFLINE  

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Posted December 23, 2012 - 05:45 PM

can someone move this thread to the one buzzard has up?

#8 Bolens 1000 OFFLINE  

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Posted December 23, 2012 - 06:08 PM

can someone move this thread to the one buzzard has up?


Done :thumbs:
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#9 MH81 ONLINE  

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Posted December 23, 2012 - 06:41 PM

Alan, try down here:

http://gardentractor...nversion-forum/

That's where the "Diesel Guys" hang out :D :D :D


I was hoping you had a link like this.

http://gardentractor...standing-women/

#10 skyrydr2 ONLINE  

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Posted December 23, 2012 - 07:20 PM

Does it only do it at an idle ? If so it has an internal linkage issue in the pump. May have a bad pin on the governor shaft that controls fuel/ spring rate on the governor mechanism.
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#11 bhts OFFLINE  

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Posted December 23, 2012 - 07:48 PM

Sam, One thing to check is at the fuel shutoff area. There is a couple bolts that holds it on and if they are two tight they can cause the lever to drag on the gov rod and can cause this. Lossen the bolts just a bit and see if it changes it. This may need shimed if it works as it was a big problem with this motor.
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#12 1967bolens collector OFFLINE  

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Posted December 23, 2012 - 10:50 PM

Sam, One thing to check is at the fuel shutoff area. There is a couple bolts that holds it on and if they are two tight they can cause the lever to drag on the gov rod and can cause this. Lossen the bolts just a bit and see if it changes it. This may need shimed if it works as it was a big problem with this motor.


thanks i will try that




Does it only do it at an idle ? If so it has an internal linkage issue in the pump. May have a bad pin on the governor shaft that controls fuel/ spring rate on the governor mechanism.



yes only at idle with no load on the engine... if you idle it down super slow it wont do it but it shouldnt be that way i really hope its nit in the injector pump i wont be happy. i know where there is 3 of them engines at now in central jersey





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