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| Priming pump http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=84117 |
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| Author: | Diver1430 [ Thu Feb 25, 2016 10:38 pm ] |
| Post subject: | Priming pump |
First the CRD runs ok, starts on second or third crank. But prime pump will not pump up or pump thru the bleeder. Anybody had that thing apart or do I need to? |
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| Author: | 95Z28A4 [ Fri Feb 26, 2016 12:30 am ] |
| Post subject: | Re: Priming pump |
I replaced our CRD's fuel filter head at about 50k miles with a 2nd Gen filter head because of air intrusion. After about 25k miles on the 2nd Gen filter head, the priming pump stopped working. I removed the heater puck from the 2nd Gen head and installed it on my original fuel head. I having been running that combination for about 15k miles. The next time I replace the fuel filter, I am replacing the complete assembly with a Racor unit. |
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| Author: | Brasher [ Fri Feb 26, 2016 8:33 am ] |
| Post subject: | Re: Priming pump |
Hands down the best legal "mod" you can do is the in-tank lift pump. The car was (mostly) wired and programmed from the factory for a reason. I imagine the only reason it was cut was to help meet a price-point. |
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| Author: | WWDiesel [ Fri Feb 26, 2016 10:22 am ] |
| Post subject: | Re: Priming pump |
Brasher wrote: Hands down the best legal "mod" you can do is the in-tank lift pump. The car was (mostly) wired and programmed from the factory for a reason. I imagine the only reason it was cut was to help meet a price-point. X2 on the absolute best mod, it was a very stupid decision not to install one at the factory!!! The additional costs are minimual as opposed to the benefits gained... |
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| Author: | Diver1430 [ Fri Feb 26, 2016 3:22 pm ] |
| Post subject: | Re: Priming pump |
I have had a online pimp on my work bench for months. With that pump installed, who cares if the priming pump has a problem. |
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| Author: | papaindigo [ Fri Feb 26, 2016 4:18 pm ] |
| Post subject: | Re: Priming pump |
The fuel head primer pump likely is associated with a one-way valve - push down and fuel is pulled into the filter head; release and that fuel stays in the filter head. To bleed - pump primer several (5-10) times or until it gets hard, crack bleeder screw (best to use a bit of clear vinyl tube and a catch can so you can see any air and catch the fuel), when flow stops close bleeder screw (gently as that's a steel screw in an aluminum housing), repeat. Do not pump while bleeder is open. If no fuel comes out of bleeder after pumping then I suspect the primer one-way valve is bad. If that's the case and the vehicle runs/cranks ok you can ignore the problem until/if you reach the point where has to be bleed out of the filter head at which point you need a new filter head. Alternatively an in tank or in line fuel pump. |
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| Author: | Diver1430 [ Mon Feb 29, 2016 10:58 pm ] |
| Post subject: | Re: Priming pump |
Tks Appreciate the reply. Methinks the lift pump is the next project. Kinda overdue. |
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