vacuum pump issues???
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New User
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vacuum pump issues???
Hello to all.
I own and daily drive a 92 f250 7.3 idi na diesel
can the vacuum pump be serviced? Mine is going out unfortunately. I remember reading some where that it can be oiled.
I own and daily drive a 92 f250 7.3 idi na diesel
can the vacuum pump be serviced? Mine is going out unfortunately. I remember reading some where that it can be oiled.
Junior User
Joined: Feb 2015
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I just installed a new one and the instructions clearly state never to oil it. I have read on the forums that air tool oil may work, since it may not hurt the diaphragm. If it is indeed going out...ya got nothing to lose.
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Oil what part of it??? Vacuum pump is two parts. One is the drive that has sealed ball-bearings. The other is the pressed-together tin-can that has the vacuum diaphram and check-valves inside. Oiling the sealed bearings certainly won't help anything. Nor will oiling the vacuum diaphram.
Post Fiend
Joined: Nov 2005
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From: Charles Town, W bygod Va
There is a cam inside that transfers the rotation into a up and down motion
that moves the diaphram. I seem to remember where people would use a synthetic
lube. I think you have to remove a pressed in cap to change the lubricant. If your pump is
going out I doubt that would help. If its not pumping enough air you probably have a problem with the diaphram or check valves. AFAIK, there's nothing you can do with that.
that moves the diaphram. I seem to remember where people would use a synthetic
lube. I think you have to remove a pressed in cap to change the lubricant. If your pump is
going out I doubt that would help. If its not pumping enough air you probably have a problem with the diaphram or check valves. AFAIK, there's nothing you can do with that.
Senior User
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Years back - you could buy just the replacement tin-can with a new diaphram and check valves. Use to cost around $50 from CAV. For Ford or GM. Not worth it anymore since a complete new pump is pretty cheap. I bought one a few months ago for $60.
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Post Fiend
Joined: Nov 2005
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From: Charles Town, W bygod Va
Id check rockauto. They arev usually quite a bit cheaper
than local and a selection of brands to chooose from.
than local and a selection of brands to chooose from.
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