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Hand Priming Pump
#1
Hi, anybody know how long you have to pump the b9 diesel priming pump by hand until it fills with fuel? Some say a few pumps, one guy said 10 minutes. Anyone have practical experience of hand pumping the primer. I can't get my Berlingo running, I have a buzzing sound coming from driver side fuel system area and I thought I might try to hand pump up some fuel and see what happens, but after a few minutes and a sore hand the pump still isn't filling.
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#2
They can be very tricky to bleed, some pump up in about 20 seconds , but I have had many that simply won’t at all.
Big issue is that the pump device often sticks down, so you can’t use it anyway..
Luckily we have a suction oil drainer, so simply pull it through the filter using that , works in seconds every time.
[-] The following 1 user says Thank You to Lighty for this post:
  • ron
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#3
(18-10-2019, 06:05 AM)Lighty Wrote:  They can be very tricky to bleed, some pump up in about 20 seconds , but I have had many that simply won’t at all.
Big issue is that the pump device often sticks down, so you can’t use it anyway..
Luckily we have a suction oil drainer, so simply pull it through the filter using that , works in seconds every time.

I am managing to get some fuel into the pump bulb by hand. The rubber pipes are too hard and brittle and I can't get them off to attach a pump. Does the bulb actually have to be so full of fuel that is full or just so that it can be heard and felt in the bulb? I actually had the car running for a minute a few days ago but now all I get is the starter cranking and if it was a petrol I would say the timing was out. I wondered if it was dirty fuel as I have disturbed the filter during the process of changing the clutch so I drained the filter a few times, about half a cup full each time. The van was last registered 4 years ago so I guess its been sitting for quite a while although it was driven maybe 20k before the thrust bearing gave out and I bought it and towed it home. It was owned by Toll courier company so was serviced and has only done 150,000k. Cheers
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#4
The pump doesn’t tend to go hard on these models, you can just feel the fuel in it usually.
Sounds like the pump/lid assembly is leaking, may well be worth getting a new one.
I have changed a couple and they normally bleed straight away when brand new.
[-] The following 1 user says Thank You to Lighty for this post:
  • ron
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#5
(20-10-2019, 07:11 AM)Lighty Wrote:  The pump doesn’t tend to go hard on these models, you can just feel the fuel in it usually.
Sounds like the pump/lid assembly is leaking, may well be worth getting a new one.
I have changed a couple and they normally bleed straight away when brand new.

Thanks for the reply, I am not sure which part you are referring to that you think needs replacing, is it the fuel pump itself or the primer? Cheers
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#6
The primer, it’s in the fuel filter lid, won’t be the fuel pump itself, I doubt.
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