Fuel filter problems again

[Head Womble]

Today I checked the filter and yes there was air in it, so I removed all the copper washers and annealed them.
Got 5 miles and it was chugging again.

I've now run a clear pipe from lift pump to IP (bypassing the filter) and there's air in the pipe.

So it's either the lift pump, sedimenter or the pipes on the top of the sender.

I'll investigate more tomorrow.

[Head Womble]

Today I got time to have a look, I've run a new fuel pipe from tank to lift pump (bypassing the sedimenter) and still had air, so I ran a .3
temp supply to the lift pump, nice clean fuel going in and milky stuff coming out.

A new lift pump is on order.

The old one is a Delfi and has only done about 8 to 10k.

[Julian]

Glad you sorted it ... and a relatively cheap fix.

[Head Womble]

Not sorted yet, still got to fit the lift pump when it arrives.
But £22.50 for the replacement was quite good I thought.

On the down side I noticed my rear diff is leaking oil, well you can't fix one problem on a LR with finding another.

[Julian]

Not sorted yet, still got to fit the lift pump when it arrives.
But £22.50 for the replacement was quite good I thought.

On the down side I noticed my rear diff is leaking oil, well you can't fix one problem on a LR with finding another.

There's an easy fix for that ... leave it 'till all the oil's drained out ... then it doesn't leak.

[Head Womble]

Not sorted yet, still got to fit the lift pump when it arrives.
But £22.50 for the replacement was quite good I thought.

On the down side I noticed my rear diff is leaking oil, well you can't fix one problem on a LR with finding another.

There's an easy fix for that ... leave it 'till all the oil's drained out ... then it doesn't leak.

Well they do say that if an LR doesn't leak then there's no oil in it.

[Head Womble]

New lift pump fitted and clear lines run from lift pump to filter, filter to IP.

All looked good, but on a short drive it conked out again, air in the lines, so the only thing left now (I hope) is to replace the sender unit.

After it conked out I bypassed the filter again, and it's got much more power (for a 300dti) so the lift pump was definitely fecked.

Off to evilbay for a sender unit.

[Julian]

For the second time ... I've got one sitting in the garage!

Let me know if you want it and I'll repair the little wire on the rheostat.

[Head Womble]

For the second time ... I've got one sitting in the garage!

Let me know if you want it and I'll repair the little wire on the rheostat.

Bugger, I really should have re-read this thread...

I'm £60 lighter and a new one has been ordered.

[Julian]

Ah, shame ... I'd have only charged you £55.00.

[Head Womble]

Ah, shame ... I'd have only charged you £55.00.

£55 and I'd of had to fix the broken wire, bargain.

[Julian]

You're right ... you really should read posts more carefully ... I offered to repair the wire before you collected!

It's the least I could do for fifty five quid!

[Head Womble]

Well today the new sender unit arrived (quite quick considering it was sent by DPD).
It was fitted as soon as I got home, and guess what, yep, still got air coming from the filter.

So a quick recap, it has a new lift pump, new fuel line from tank to lift pump, clear lines in engine bay.

The only thing left now is the fuel filter housing.







Grovelling time.




Julian, you know how I always read your posts and digest every word at least three times, and imprint them in my teeny tiny mind, well........................urm...............you said something about a filter housing....................

[Julian]

Hang on ... let me read back through my posts to see what I said.

[julianf]

Youve done a fair bit of work -

When i re-plumbed the 101, i used clear throughout, and compression fittings with inserts.

When i started it, some were leaking, but i just tightened them up bit by bit on tickover until no air.

SSL will sell you all manor of banjo sizes and inserts for clear nylon tube (i got my tube from a hydraulics place) - if i ever have that kind of issue on another tdi, it will be one of the first things ill try, as it lets you see exactly where the air is getting in.