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case442 hot head

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kd taylor

06-01-2006 17:08:13

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have a case 442 tractor run"s for 20 min then dies out ????? though it was a bad fuel pump. replaced it, same thing. I think that the tractor is heating up and causing the fuel pump to vapor lock. anybody with a good idea to fix this wood be helpfull thanks.

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greygoat

01-17-2008 07:54:36

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Re: log spltter in reply to andys, 01-16-2008 15:56:43

If you are working a hydraulic woodsplitter from
tractor hydraulics, then, speed is determined by
pump output in gallons per minute, (GPM), and the
machine may cycle faster as the tractor engine is
speeded up. Splitting force is determined by the
tractor output pressure, pounds per square inch,
(PSI), which is determined by the safety relief
valve setting of the tractor hydraulic system.
Force is also subject to the size of the splitter
cylinder. A 4 inch bore cylinder has 12.56 inch
of piston area. pressure times area equals tonnage
of force (12.56 X 2000 =25120) divide by 2000
lbs per ton equals 12 1/2 ton. the same 2000 psi
on a 5 inch cylinder, (19.625 inch area) is
39250 lbs which is 19.62 tons.
There are reducing valves which reduce pressure
going from a system to a component, but no valve
can increase pressure beyond that of system
pressure setting.
Determine system pressure, and knowing cylinder
size will allow you to calculate splitting force

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mike in Ind.

06-01-2006 17:19:57

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Re: case442 hot head in reply to kd taylor, 06-01-2006 17:08:13

Check your coil. A bad coil will work fine untill it gets warm. Mike.

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kdtaylor

06-02-2006 11:40:34

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Re: case442 hot head in reply to mike in Ind., 06-01-2006 17:19:57

thanks for the tip have good spark when the tractor dies out I pull off the fuel line to the carb and turn it over no fuel the fuel pump is so hot that I can not touch it ?????

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