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Re: wd9 problems

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Author  [Modern View]

02-28-2014 18:12:24

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Are you waiting for 2 minutes run time when the temp is in the 40s or 5 minutes when the temps are near freezing and more if needed. If you are, then the compression relief valve rack may be stuck. The third valve in the head must close to allow diesel compression. If stuck open, they will not run on diesel. It might need to have the valve cover pulled to check the third valve operation, If stuck, there will be no external indication. Let us know. Jim

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02-28-2014 18:33:25

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 Re: wd9 problems in reply to Janicholson, 02-28-2014 18:12:24  
will add also, that it is very easy to tell diesel compression from the gas. turn it over with the starter on the diesel side and you will know as the engine will crank slow due to extra compression. and also when operating the compression lever you will hear it "snap" from one to the other. also if that little 20.00 spring is broken in the shift over mechanism it will stay on the gas side and not switch to diesel. it is right behind the carburetor.

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02-28-2014 21:13:57

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 Re: wd9 problems in reply to rustred, 02-28-2014 18:33:25  
Yes, that spring broke on my MD last fall but my CIH dealer only charged me $16.80. The surprise was that it was still available from CIH. But on my MD that spring latches it on the gas side. I could still start my MD on gas but I had to manually hold lever up until it got warmed up. Al

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