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Bosch PSB Pump Checking

D

DanielW

Member
I know this has been covered before, and I
thought I had saved a precious thread on
it, but can't for the life of me find the
full answer:

What's the 'proper' way to check and make
sure a PSB pump/plunger isn't stuck if it's
been sitting for a while? As I recall,
there was something more to it than just
removing the shut-off cover and making sure
the linkage was free.

Getting my Massey 555 ready to sell. It's
been sitting for about 10 months in a dry
shop and I've always been good about adding
some lubricant to the diesel, so I suspect
it's ok, but I do want to make sure before
I wreck something.
 
There's NO easy way, short of removing the pump from engine so well trained hands can check it out. This means DO NOT EVEN TURN ENGINE TO SET THE TIMING. If the plunger is stuck, just turning the engine by hand will break it. There's a screwdriver test, but that's useless as it only tells if the metering sleeve is free, not the plunger.
 
Thanks DieselTech. I remember the screwdriver test people talking about being described as not thorough enough. I was hoping there was some way of checking the pump without taking off, because I really just want to get this thing sold. Ah well.
 
I'm in South Central Ontario (Canada) - rather far from anywhere unfortunately. There's only two diesel shops I know of within reasonable driving distance, and both don't have a superb reputation.
 
Daniel: Fentons in Peterbourough have done several pumps for me, and for my father before me, and other than the cost I have no complaints. They are excellent fellows to deal with and I believe they appreciate fellows trying to keep the old stuff going. If I were you I would call them to see what they say about checking it out for you?
 
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