Posted by pete 23 on October 02, 2009 at 20:16:21 from (173.87.8.73):
In Reply to: 1486 needs more power posted by Larry B 1486 on October 02, 2009 at 19:42:10:
You say the 66 leaves black smoke seen for miles, telling us it is over fueled. If your 86 doesn't smoke as much , give it more fuel if you like. I would dyno test both for a comparison. The pumps on those models , 66 and 86, have a habit of leaking internally around the delivery valve and causing tremendous power increase.That may be why your 66 has so much or there are several other things in pump to cause it also, most likely just turned up a lot. Some pullers just loosen the deliver valve for a pull and then tighten it back afterwards. If turbo is bad you will have smoke and low power, if cam is bad you will have poor running engine. At any rate, one has to know turbo pressures, fuel comsumption , horsepower and torque rise to make an accurate determination. Heck, I saw a Deere 4440 that couldn't pull a thing because owner had over filled transmission about ten gallons, filling the wet clutch compartment causing flywheel to bog down in the fluid. You never know what you will find until you start to trouble shoot a problem.
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