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12-05-2009
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#1 |
Join Date: Aug 2008
Location: New Jersey
Posts: 44
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Lumbar pump question
my lumbar pump starts to run but slowly dies out with in a few seconds and not filling the bladders, any ideas befor I pull it apart?
thanks Mike |
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12-05-2009
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#2 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,165
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Re: Lumbar pump question
Quote:
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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12-06-2009
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#3 |
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,609
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Re: Lumbar pump question
besides not filling the bladders my passenger seat pump was doing something similar, started out strong but would slow way down as it ran, not stopping completely though.
Anyway, when I took it apart I found that the rubber torn in several places and it was winding up around the motor shaft(?), where the screw holds the rubber to the drive. It's like a crank type of set up and one of the fragments was winding around the drive & stopping the motor. The rubber dish washing trick over at the Reg site did the trick!
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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12-06-2009
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#4 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,165
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Re: Lumbar pump question
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Or got to a Local bicycle shop and get an old inner tube, that is what I used
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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12-06-2009
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#5 |
Join Date: Dec 2007
Location: Reston, Virginia
Posts: 930
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Re: Lumbar pump question
As stated already could be the membrane jamming up things or it also could be a bad electric pump motor...after running a bit 'bearings' start to lock up or armature overheats.
In my case it was the membrane bunging things up (Membrane detached from Plunger) >>>  All the pieces from the membrane>>  Once you get apart here are your basic components>>>>  If it is a membrane issue then you can repair>>  If it is the motor unit... well then you will be getting a replacement pump which runs about $150 new (the OEM manufacturer no longer makes the lumbar pumps) |
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12-07-2009
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#6 |
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Join Date: Aug 2008
Location: New Jersey
Posts: 44
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Re: Lumbar pump question
Thanks,
I got my project for this weekend. Mike |
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