gehngus

gehngus

Member
Hi fellow Landy lovers.

My 1972 series 3 had fuel dripping from the lift pump so i decided to change the pump.

Now it starts and runs for a few seconds and dies.

when hand crank the lift pump i can hear gurgling and bubbling.

I put an extra gallon of diesel in and loosened the bleed screw on the filter and pumped. it hisses, but no fuel comes out.

So i tried the bleed screw on the injector. when i pump nothing comes out here either?

also tried loosening the jets and turning over for a while. still not getting fuel coming through?

There must be some fuel in there cos it will start for a few seconds then die. start and then die etc..

I get the feeling that i have probably ended up putting more air in than ever.

I still get the gurgling when i hand pump and after it starts and dies.

any idea what i might have done wrong here?

many thanks.
 
I'm not getting any leaks. but it does sound like it could be drawing air in?

the fuel line coming in was fiddly going back on, looks like the end of a break pipe. im wondering if i might have cross threaded it now?

if i put a compressor to the filler cap would this show me if there is a hole or break in the line?
 
gehngus said:
I'm not getting any leaks. but it does sound like it could be drawing air in?

the fuel line coming in was fiddly going back on, looks like the end of a break pipe. im wondering if i might have cross threaded it now?

if i put a compressor to the filler cap would this show me if there is a hole or break in the line?
Click to expand...

I don't think that will help. It really sounds like air is getting in. The lift pump wont pump past the injector pump IIRC. Try remaking the connection from the tank to the filter - when you take it off have a good look at the end of the pipe. You could try a bit of pe tape to seal the leak and prove the fault.
 
When you hand prime to bleed try turning the engine over half a turn with the starting handle. It sounds like you are not on the back of the cam. Once you have fuel coming out at the filter crack the injectors open and crank the engine on the starter to bleed air. Leave on or two open and put heaters on and try starting, tighten the injectors once running.
All of the above may be a load of tosh if you fitted a Britpart pump, they are a known problem.
 
i've found 2.25ds can be right sids to bleed. i've had to loosen up the pipes at the inj. turn turn turn until fuel, then it needed a million more turns to force the air out and through the injectors

i usually just jump start it to a running car.

you can also stick on clear pipe to see if you are getting bubbles
 
Fortunately never had a problem bleeding a 2.25. Always done them as my previous post. Maybe I have been lucky.
 
Ive normally got away with turning it over to bleed it though mines 300tdi have been told it is self bleeding but if it is I dont see why it has a bleed screw at the filter housing
 
lANDYbrownlee said:
Ive normally got away with turning it over to bleed it though mines 300tdi have been told it is self bleeding but if it is I dont see why it has a bleed screw at the filter housing
Click to expand...

pumps are self bleeding but they still dont like lots of air, though i never bleed at filter front banjo on pump is better place
 
All sorted now.
The feed into the pump wasnt in straight so wasnt all the way in so was letting air in.

I had to loosn the pump to get the pipe in straight. Now works a treat.

Cheers
 
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