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Re: Re: Re: Diesel Injector Pump
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Posted by Diesel Dan on June 13, 1999 at 19:50:01 from (205.216.83.208):
In Reply to: Re: Re: Diesel Injector Pump posted by Bern on June 10, 1999 at 21:41:52:
Good points and well taken. You want to know why shops refuse to run or check old pumps? Here's why. (1) Test stands are just that. They can't detect worn bearings,bad seals,broken parts,sticking valves ,or broke springs. Sometimes they can but usually not. Stands are just a piece of machinery that runs your pump at a fixed RPM and gives the result out. The technician has to interpret the results. Say the fuel is low. Why is it low? Should he blindly set the fuel up when in fact a camring or roller or some other item is at fault. Only a complete tear down will find the cause. (2) Test oil in test stands cost 6 dollars a gallon and they hold about 12 gallons. One pump in which a technician forgets to drain the fuel out of (especially the RED fuel) will ruin the test oil. That dye is real strong.(3) I find it real hard to charge a customer for checking a pump and to find it bad and then charge him for an overhaul to.
The best test stand is the tractor itself as the pump runs the tracor.If you want the best price on a rebuild have the shop tear the pump down for a quote and if it's to high take the parts to another shop and let them quote you.
Keep on repairing them yourselves as we always get a laugh out of the ways some people put'em back together. I just put a new modem in my computer as I am all thumbssss. My computer shop couldn't service it soon enough and I hated paying him, so I guess I am as guilty as the next guy when it comes to repairing my own stuff.
Diesel Dan (the pump man)
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