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John Deere Tractors Discussion Forum
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Re: smoke normal on JD2640

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01-22-2013 06:33:26

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Cold idle, warm idle? Looking at smoke against a blue or grey sky? Or against an outline of trees? What about smoke at fast idle? Hours on engine and condition? Ever service the injectors? Any smoke at full load? Oil consumption?

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01-22-2013 06:52:10

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 Re: smoke normal on JD2640 in reply to buickanddeere, 01-22-2013 06:33:26  
Thanks for your information and advice all you guys.
It's grey smoke against the grass grass. I only notice it when its in park and there's no air movement. I don't really know about slow/fast idle. It's got 5000 hours. I've only had it 6 months and I don't know about the injectors. Again, because I've put so few hours on it, I don't know about oil consumption.

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01-22-2013 09:18:38

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 Re: smoke normal on JD2640 in reply to svenandersen, 01-22-2013 06:52:10  
Slow idle is no load and 700 or so rpm. Fast idle is approx 2400rpm and no load. Consult the operators manual for the actual numbers. Obtain a coolant test kit from the dealer that tests the corrosion inhibitor which few operators seem to even know about. If the coolant is old or originonal. The wet sleeves maybe cavitated through and why the previous owner sold the tractor. Run an oil analysis kit on the crankcase oil . Don't need to add to problems with antifreeze tearing the bearings out.

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