finally admitted defeat - any diesel specialists in staffordshire?

MikeDISCO · Dec 6, 2009

after a solid week of trying to resolve the problems im having with air in the fuel line i have admitted defeat.

Does anyone know to any diesel specialists or willing to cast their eye over my 300tdi in staffordshire.... cannock / wolverhampton area.

any contacts would be great.

Thanks

Mike

Sean · Dec 6, 2009

Ashley 4x4

there's something wrong with the home page currently, the rest of the site works - tiny little indi in Stafford who won't rip you off

MikeDISCO · Dec 6, 2009

any one live local that would cast their eye over it as a favour before i get a garage bill??

nathan5346 · Dec 6, 2009

what have you done/tried?

Sean · Dec 6, 2009

MikeDISCO said:
any one live local that would cast their eye over it as a favour before i get a garage bill??

just read your other thread, have you bothered changing the lift pump yet ?

MikeDISCO · Dec 6, 2009

I have cracked the connection after the lift pump as it goes into the filter housing and the diesel is full of bubbles, and wen i crack the injectors same thing.
The lift pump is only 3months old and gives a great flow of fuel just rammed with air.
If i remove the fuel filter and fill it with clean diesel the problem dissapears for 2-3 mins then as u call for revs the filter is being filled with air and the engine cuts out.
when i remove the filter after the 2-3 mins it is only half full of diesel.
lift pump is operating as it should just bringing in loads of air from the fuel line somewhere.
replaced sender unit same problem.
if the fitting into the top of the tank for the fuel tank breather was leaking would this cause these problems??

Sean · Dec 6, 2009

run a fuel line from a can direct to the lift pump if there's no air then do the same using the full length of the fuel line (disconnect it at the tank)

it's just a matter of finding where there's a hole somewhere between the tank and lift pump, probably easier just to replace the entire length of fuel feed

CharlesY · Dec 6, 2009

MikeDISCO said:
any one live local that would cast their eye over it as a favour before i get a garage bill??

Send / post a photo of the top of the fuel filter head.

If (and it is a biggish IF) it is supposed to be a self-bleeder, it will have a banjo union right on the top, with a pipe coming from the last injector, and another pipe going back to the tank.

Take out the banjo bolt, and examne it closely for a tiny cross-drilled hole that is supposed to let a lot of AIR through but only a little fuel.

Poke it clear. Maybe drill it a bitty bigger too.

Replace it, and operate the fuel lift pump primer lever lots of times, making sure the pump lever is NOT on the cam - if it feels floppy and useless, turn the engine half a turn.

The self-bleeder holes in the banjo bolts are not easy to spot, and they block over time.

CharlesY

MikeDISCO · Dec 6, 2009

Been quoted £176.00 for a replacement fuel line from front to back, hence why i wanna get it sorted by other means.
I will try that option of running a fuel can directly to the lift pump. but im 99% sure its a problem between the tank and the lift pump.
would a leaky breather pipe connection cause air in the lines?

MikeDISCO · Dec 6, 2009

CharlesY said:
Send / post a photo of the top of the fuel filter head.

If (and it is a biggish IF) it is supposed to be a self-bleeder, it will have a banjo union right on the top, with a pipe coming from the last injector, and another pipe going back to the tank.

Take out the banjo bolt, and examne it closely for a tiny cross-drilled hole that is supposed to let a lot of AIR through but only a little fuel.

Poke it clear. Mayybe drill it a bitty bigger too.

Replace it, and operate the fuel lift pump primer lever lots of times, making sure the pump lever is NOT on the cam - if it feels floppy and useless, turn the engine half a turn.

The self-bleeder holes in the banjo bolts are not easy to spot, and they block over time.

CharlesY

not really sure what u mean mate... the bleed screw or the big fitting on the top of the housing?

lerk · Dec 6, 2009

CharlesY said:
The self-bleeder

MikeDISCO said:
the bleed screw

Sorta answered his question there then dint ya!

CharlesY · Dec 6, 2009

MikeDISCO said:
not really sure what u mean mate... the bleed screw or the big fitting on the top of the housing?

YES OR NO, does the fuel filter head have two plastic pipes attached to a union right on the top with a biggish hex head bolt holding the union down?

PHOTO!!!!

CharlesY

MikeDISCO · Dec 6, 2009

the bleed screw is a nut and bolt with the appropriate washers. been that way for ages.

CharlesY · Dec 6, 2009

lerk said:
Sorta answered his question there then dint ya!

Well Lerk, you and I think so, but he's not convinced yet.

CharlesY

CharlesY · Dec 6, 2009

MikeDISCO said:
the bleed screw is a nut and bolt with the appropriate washers. been that way for ages.

GEEEE ZUZZZZZZ !!!!

I am NOT referring to BLEED screws.

IT IS A GREAT BIG BANJO BOLT!
(with a wee tiny cross-drilled hole in the side of it)

Pay the £176 - it will save me a lot of bother, but by all accounts the £176 might not fix the problem.

Doing what I said might. That's IF yours has the self-bleeding fuel filter. It might not.

Anyway, what's £176 to a man of your means?

CharlesY

MikeDISCO · Dec 6, 2009

my disco is at my nans at the moment so wont be able to check for sure until tomorrow. but i think there is only one pipe....

MikeDISCO · Dec 6, 2009

charlesy i really appreciate ur support mate, i am just making sure i have the correct fitting in my mind.
as i said i think there is only one pipe....

CharlesY · Dec 6, 2009

MikeDISCO said:
charlesy i really appreciate ur support mate, i am just making sure i have the correct fitting in my mind.
as i said i think there is only one pipe....

OK .... then the return from the injectors meets the return from the injection pump ON the injection pump and then a pipe goes to the tank.

In these landies it is ESSENTIAL (for good starting) that the three little black pipes across the tops of the injectors are in PERFECT condition, and no split ends. Check this first. If the pipes feel hard and crackly or have any split ends, get a length of leak-off pipe and replace them.

If this has been the problem it's a miracle cure for about two quid and an hour.

Better than £176!

Tell you what, if this works, deduct the cost of the leak-off pipe (say £2) and send me the rest, £174!

Can't say fairer than that.

CharlesY

GRATCH · Dec 6, 2009

big bolt thing on top/middle is the banjo bolt (only single pipe on disco's) small bolt just in front of it is bleed screw.

MikeDISCO · Dec 6, 2009

replaced the injector leak off pipes last week so they are in perfect condition.......

finally admitted defeat - any diesel specialists in staffordshire?

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