HELP Buschur Double Pumper not working
Oct 14, 2009, 10:16 AM
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HELP Buschur Double Pumper not working
Ok guy's i fill dumb but i cant figure this out at all, i have a double pumper and the second pump is not kicking on i thought it was the PRESSURE SWITCH so i bought a HOBBS 10 psi one to see if it fixed the problem and it did not, on the new pressure switch it has two sources NO (normally open) C (closed) i have the wire from the battery and in line fuse to the NO and the wire from the fuel pump is on C.. So when it see 10 psi the C circuit open up sending the 12v still nothing also i checked it with the air compressor turned it down to 10 psi the pump comes on just wont come on when i hit 10 psi of boost and ideal???? It on a good vacuum source to took the line off to the switch and the ideal falls low and has some good vacuum to it.. it say's from buschur just t it in to a good vacuum source that what i did, any help will help thanks for your time and sorry for the long Essay lol
Oct 14, 2009, 03:04 PM
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Where are you tee'd off for a vacuum source? Just asking cause it must not be right if you are applying 10+ psi manually to the hobbs switch and it works. Good luck.
Aaron
Aaron
Oct 14, 2009, 03:14 PM
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i have a vacuum block the mangus intake manifold only has 4 ports, 1 is the map sensor 2 is the brake booster line, and 3 and 4 or vacuum nipples, so those 2 i ran str8 to the vacuum block so the vacum block has 6 nipples but 2 are str8 to the intake and 4 are used for sources...
Last edited by EVO_RYAN; Oct 14, 2009 at 03:17 PM.
Oct 14, 2009, 04:53 PM
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- Do you have the 2nd pump grounded appropriately to the chassis?
- You can take a pick or something small inside the hobbs switch to close the circuit. Just stick it in the end that you hook the vacuum line up to.
- Have you run 12volts directly to the pump to make the pump is working correctly?
- You can take a pick or something small inside the hobbs switch to close the circuit. Just stick it in the end that you hook the vacuum line up to.
- Have you run 12volts directly to the pump to make the pump is working correctly?
Oct 14, 2009, 06:17 PM
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Mine does the same thing. My 2nd pump doesnt work when boosting but when I manually put air(using air compressor) the 2nd pump works. 
I was getting boost pressure from IM T-d with my Tial bov. I even transfered mine on UICP near TB and 2nd pump still wont work when Im boosting my IDC still @ 90ish% @ 30psi. (93 octane)
bump for this thread. David pm me already(a month ago) to try manually prime it but I did it already. This is the only thing its been holding me on getting race gas tune. I was even going to buy BR twin feed line kit thought it may solve my fuel issue.
I was getting boost pressure from IM T-d with my Tial bov. I even transfered mine on UICP near TB and 2nd pump still wont work when Im boosting my IDC still @ 90ish% @ 30psi. (93 octane)
bump for this thread. David pm me already(a month ago) to try manually prime it but I did it already. This is the only thing its been holding me on getting race gas tune. I was even going to buy BR twin feed line kit thought it may solve my fuel issue.
Last edited by evovin; Oct 15, 2009 at 01:48 AM.
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Oct 14, 2009, 07:59 PM
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Oct 14, 2009, 08:43 PM
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This statement makes no sense...
"works when you put 10 psi to it"
But in the same post....."but not boosting"
What do you think "boosting" is??? It doesn't magically work when you put a compressor to it and than not work when you put boost to it.
Have you completely taken the hobbs switch out of the system just to see if it works when directly connected to the battery.
"works when you put 10 psi to it"
But in the same post....."but not boosting"
What do you think "boosting" is??? It doesn't magically work when you put a compressor to it and than not work when you put boost to it.
Have you completely taken the hobbs switch out of the system just to see if it works when directly connected to the battery.
Oct 15, 2009, 08:34 AM
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This statement makes no sense...
"works when you put 10 psi to it"
But in the same post....."but not boosting"
What do you think "boosting" is??? It doesn't magically work when you put a compressor to it and than not work when you put boost to it.
Have you completely taken the hobbs switch out of the ystem just to see if it works when directly connected to the battery.
"works when you put 10 psi to it"
But in the same post....."but not boosting"
What do you think "boosting" is??? It doesn't magically work when you put a compressor to it and than not work when you put boost to it.
Have you completely taken the hobbs switch out of the ystem just to see if it works when directly connected to the battery.
HAHA it was a long day and i F*** that on up thanks for your smartness i o you a
