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Re: Grr.... not starting
Posted: Sun Nov 29, 2009 3:30 pm
by mikexgough
Javelin wrote:Sounds like I have a similar if not identical problem.
Leaking seal on the pump.
Undid the mounting bolts twisted the pump round, got access to the plate.
Changed the seal.
Put everything back and......... no go.
Foot down on the throttle and a full battery of turning over and nothing.
Dropped a couple of fuel lines off to see and nothing comes out.
Is there a bleed bolt/valve etc?
On my marine diesel I have to bleed the fuel system but I can't see anywhere obvious on this pump.
The pump was fine two days ago, all I've done is change the seal.
I assume that the position of the pump is a timing issue and shouldn't effect the actual pumping performance even if I've not got it back spot on.
I never moved my pump I did it in situ without moving the mounting bolts as per fact sheet......I need to get the solenoid off to check operation as if you see the 1st symptoms.......it cut out then restarted of sorts, my thinking was crud in the fuel filter as Bongo had been up on jacks while I was doing the spring assisters.....I am going with the solenoid tomorrow when I have got a spanner, if that is eliminated......I need a pump and a garage to fit......then of it can't be done by Thursday......change my bookings and book a hotel........
Re: Grr.... not starting
Posted: Sun Nov 29, 2009 3:35 pm
by dandywarhol
Javelin wrote:Sounds like I have a similar if not identical problem.
Leaking seal on the pump.
Undid the mounting bolts twisted the pump round, got access to the plate.
Changed the seal.
Put everything back and......... no go.
Foot down on the throttle and a full battery of turning over and nothing.
Dropped a couple of fuel lines off to see and nothing comes out.
Is there a bleed bolt/valve etc?
On my marine diesel I have to bleed the fuel system but I can't see anywhere obvious on this pump.
The pump was fine two days ago, all I've done is change the seal.
I assume that the position of the pump is a timing issue and shouldn't effect the actual pumping performance even if I've not got it back spot on.
Pump timing is now out - this needs to be very acurately retimed with a DTI gauge to the nearest 0.10mm
Re: Grr.... not starting
Posted: Sun Nov 29, 2009 3:52 pm
by Javelin
Javelin wrote:
Pump timing is now out - this needs to be very acurately retimed with a DTI gauge to the nearest 0.10mm
But even so the pump should still pump should it not?
Re: Grr.... not starting
Posted: Sun Nov 29, 2009 6:46 pm
by dandywarhol
Yep, it will pump but inject at the wrong time - is there fuel coming up if you open an injector pipe slightly?
Re: Grr.... not starting
Posted: Sun Nov 29, 2009 8:53 pm
by mikexgough
looking at the Fuel Cut off solenoid jobby.......in case I need to get one.........
is this...
.. at £9.99.......
the same as this..........
at £61.53
The first is a generic Bosch and the other is from Bongo Bits......which I would assume would be pukka Jap..?
Re: Grr.... not starting
Posted: Sun Nov 29, 2009 9:16 pm
by dandywarhol
Its a Zexel pump, made under licence from Bosch- I know which I'd choose
When you take the old one out, reconnect the wire and earth the body - it should lift the plunger when the "ignition" is switched on
Re: Grr.... not starting
Posted: Sun Nov 29, 2009 9:19 pm
by mikexgough
Thanks for the heads up Alan..... will do in the morning...
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 12:47 pm
by mikexgough
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 3:20 pm
by rita
Hi,
did you check for obstruction in the pump when you removed the Solenoid,IE bits of rubber etc.
Sometimes the outlet orifice can get blocked.
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 3:42 pm
by dandywarhol
I'll probably be proved wrong here but its very unusual for a pump to suddenly fail (unless it has seized) Is there a 12v supply going to the solenoid when the ignition is on?
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 4:39 pm
by Javelin
I'm trying to get my head round how the pump actually works.
Given that the fuel supply is below the pump how does the pump prime?
If it's a centifugal pump I can't see how it would self prime.
If I pulled off the supply hose and gravity fed the pump would this help clear airlocks and refill the pump system.
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 5:31 pm
by mikexgough
dandywarhol wrote:I'll probably be proved wrong here but its very unusual for a pump to suddenly fail (unless it has seized) Is there a 12v supply going to the solenoid when the ignition is on?
Yes there is a 12v supply....and the solenoid works.....
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 5:32 pm
by mikexgough
rita wrote:Hi,
did you check for obstruction in the pump when you removed the Solenoid,IE bits of rubber etc.
Sometimes the outlet orifice can get blocked.
Yes did that too.....
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 5:34 pm
by mikexgough
It has been suggested that the cam belt has "jumped a tooth".....ot the tank is crudded up ......
Still, it's going to be taken to the garage.....I can't be ar**ed to play anymore....
.and I'm off to Holland Thursday....in a Citroen and staying in a hotel instead of off in a Bongo and sleeping in my Bongo....
Re: Grr.... not starting
Posted: Mon Nov 30, 2009 10:20 pm
by mikeonb4c
mikexgough wrote:It has been suggested that the cam belt has "jumped a tooth".....ot the tank is crudded up ......
Still, it's going to be taken to the garage.....I can't be ar**ed to play anymore....
.and I'm off to Holland Thursday....in a Citroen and staying in a hotel instead of off in a Bongo and sleeping in my Bongo....
Bummer
Sorry to hear of your troubles Mike. These things are sent to try us. Hopefully the garage will get it all sorted OK and normal service will resume, without the wallet being slimmed overmuch.
