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Heavy Equipment Forum Trac Hoe, Back Hoe, Dozers, etc.

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Old 10-08-2015, 09:42 PM
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Default 1800 rpm yanmar

I bought a 10k northern lights genset for the yanmar 3 cyl liquid cooled motor for a project. i'm looking for anyone that has info on how to convert it to a non fixed 3000 rpm. it is a model# 3tne78 ac-ad. thanks, Bill w
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Old 10-09-2015, 09:19 AM
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Default Re: 1800 rpm yanmar

I have the yanmar 3 cyl in my gator if you need pictures
what are you planning?
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Old 10-09-2015, 10:29 AM
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Default Re: 1800 rpm yanmar

Does this help? I'm thinking you remove the regulator spring and replace it with a something rigid like a turnbuckle then attach a mechanical cable to the top of the regulator handle.

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Old 10-09-2015, 11:17 AM
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Default Re: 1800 rpm yanmar

As I see it w/o the spring the governor would rendered inoperable. might need a stronger spring but that might cause other problems.
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Old 10-09-2015, 12:47 PM
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Default Re: 1800 rpm yanmar

i'm going to use it in my hustler groomer I bought.it had a twin diesel ruggerini air cooled in it.i wanted a motor I can get parts for without calling Italy....and don't worry,lots of pics coming up. Bill w
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Old 10-10-2015, 11:08 AM
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Default Re: 1800 rpm yanmar

BCZOOM Is correct the regulator spring is maintining 1800 rpms for the generator speed at all times the idle screw is set to 1800 rpms also.
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