Turbo-inj. pump hose

bluedog333 · Feb 24, 2019

Can someone be kind enough to tell me the i/d of the turbo to injector pump hose. I think mines leaking so I’m going to fit a new one. Also, are there any special connectors, or is it all push-fit? ( it looks push fit, but is a bit cobbled-together at the turbo end ).
200tdi Disco engine.
Cheers

lynall · Feb 25, 2019

I think its 6mm o/d and that size will have a wall thickness of 1mm so i/d should be 4mm.
Easy to push on, but put the fitting in a vice and do cold with a bit of spit as lube, dont heat pipe.
I think turbo end the 6mm plastic pipe is just a push fit in the short rubber hose then a spring widget clip holds it there.

Pretty rare to get an issue with this pipe, its nylon and I would guess ebay by the metre is the way to go?

bluedog333 · Feb 25, 2019

lynall said:
I think its 6mm o/d and that size will have a wall thickness of 1mm so i/d should be 4mm.
Easy to push on, but put the fitting in a vice and do cold with a bit of spit as lube, dont heat pipe.
I think turbo end the 6mm plastic pipe is just a push fit in the short rubber hose then a spring widget clip holds it there.

Pretty rare to get an issue with this pipe, its nylon and I would guess ebay by the metre is the way to go?

Cheers Lynall, it’s that rubber connector that’s split, is that just a size reducer? Can’t seem to find a suitable replacement without forking out for a 300tdi pipe. I’ll use to size pipes and a plastic reducer if so.
Novice question of the day : is that pipe under positive pressure? It may explain the fine oil mist residue that’s been sprayed on the bonnet around the split. Hopefully it’s just oil from a rocker-cover leak that’s being redistributed rather than anything more sinister.

mick 1986 · Feb 25, 2019

bluedog333 said:
Cheers Lynall, it’s that rubber connector that’s split, is that just a size reducer? Can’t seem to find a suitable replacement without forking out for a 300tdi pipe. I’ll use to size pipes and a plastic reducer if so.
Novice question of the day : is that pipe under positive pressure? It may explain the fine oil mist residue that’s been sprayed on the bonnet around the split. Hopefully it’s just oil from a rocker-cover leak that’s being redistributed rather than anything more sinister.

It is under pressure when on boost yes, as that pushes the fuel pin down (well it pushes a diaphragm, that pushes the pin).

I can measure mine today if it helps you?

bluedog333 · Feb 25, 2019

mick 1986 said:
It is under pressure when on boost yes, as that pushes the fuel pin down (well it pushes a diaphragm, that pushes the pin).

I can measure mine today if it helps you?

Cheers for the info Mick, good to know what all those bits do! I’ll check the pin too, as I suspect it may not have been moving freely for a while if not under pressure. Hopefully fixing the leak will cure the sluggishness of late.
Thanks for the offer to measure, I’ll get the callipers out later though and have a proper look at it all.

mick 1986 · Feb 25, 2019

bluedog333 said:
Cheers for the info Mick, good to know what all those bits do! I’ll check the pin too, as I suspect it may not have been moving freely for a while if not under pressure. Hopefully fixing the leak will cure the sluggishness of late.
Thanks for the offer to measure, I’ll get the callipers out later though and have a proper look at it all.

No problem. I will measure mine anyway, it should help to identify if different sizes work.

My boost pin was seized. I used a combination of ZX54 (military version of GT85/WD40) and small firm movements. If you can get the boost pin out at the start, the plunger under it (goes off 90deg towards the front of the vehicle) was tight too. I found the easiest way to move it was to pull the throttle cable, moving the arm (and plunger) and then pushing the plunger back in with a screwdriver. Once it was freed off, it was smooth but I didn’t really notice an improvement in driving.

lynall · Feb 25, 2019

bluedog333 said:
Cheers Lynall, it’s that rubber connector that’s split, is that just a size reducer? Can’t seem to find a suitable replacement without forking out for a 300tdi pipe. I’ll use to size pipes and a plastic reducer if so.
Novice question of the day : is that pipe under positive pressure? It may explain the fine oil mist residue that’s been sprayed on the bonnet around the split. Hopefully it’s just oil from a rocker-cover leak that’s being redistributed rather than anything more sinister.

Sorry I assumed you meant the plastic pipe, as its the rubber bit I would just use either 4/5/6mm id rubber hose and stretch if to work, hasnt got to be pretty.

Jonmlb748 · Feb 25, 2019

Replace it all with 2 meters of 6 mm fuel pipe and a couple of jubileee clips, job done

bluedog333 · Feb 25, 2019

lynall said:
Sorry I assumed you meant the plastic pipe, as its the rubber bit I would just use either 4/5/6mm id rubber hose and stretch if to work, hasnt got to be pretty.

Cheers Lynall, I did make it sound like the plastic pipe! I was just going to replace the whole lot anyway. I might go for some PU/rubber pipe instead of messing about with that rubber connector gizmo.
I’ll update.

mick 1986 · Feb 25, 2019

bluedog333 said:
Cheers Lynall, I did make it sound like the plastic pipe! I was just going to replace the whole lot anyway. I might go for some PU/rubber pipe instead of messing about with that rubber connector gizmo.
I’ll update.

I measured the OD of the plastic pipe to be 6.3mm (assuming it’s the original pipe) then I would assume it’s 1/4”.

bluedog333 · Feb 25, 2019

mick 1986 said:
I measured the OD of the plastic pipe to be 6.3mm (assuming it’s the original pipe) then I would assume it’s 1/4”.

Cheers for looking, that’s the same as what I measured. I’ll get some pipe ordered. I was a bit impatient today and bodged the leaks ( 2 of them ) with some self-amalgamating silicone tape ( a must for any Landy toolbox! ) for the journey home. Big difference already, can’t wait to put the proper pipe on and have a look at the fuel pin/diaphragm.

mick 1986 · Feb 26, 2019

bluedog333 said:
Cheers for looking, that’s the same as what I measured. I’ll get some pipe ordered. I was a bit impatient today and bodged the leaks ( 2 of them ) with some self-amalgamating silicone tape ( a must for any Landy toolbox! ) for the journey home. Big difference already, can’t wait to put the proper pipe on and have a look at the fuel pin/diaphragm.

That’s good news.

What route does yours take from the turbo over to the FIP? I noticed that mine wasn’t really the best. It goes from the turbo forwards, towards the cooling fan, round between the fan and the head, then down between two injectors to the top of FIP. It’s probably one of the “safer” routes, but still don’t think it looks that good.

flat · Feb 26, 2019

bluedog333 said:
Cheers for the info Mick, good to know what all those bits do! I’ll check the pin too, as I suspect it may not have been moving freely for a while if not under pressure. Hopefully fixing the leak will cure the sluggishness of late.
Thanks for the offer to measure, I’ll get the callipers out later though and have a proper look at it all.

also check the pin and the rod the pin actuaries hasnt seized inside, as that can cause sluggishness to

bluedog333 · Feb 26, 2019

mick 1986 said:
That’s good news.

What route does yours take from the turbo over to the FIP? I noticed that mine wasn’t really the best. It goes from the turbo forwards, towards the cooling fan, round between the fan and the head, then down between two injectors to the top of FIP. It’s probably one of the “safer” routes, but still don’t think it looks that good.

Out of the turbo, straight up over the alternator and across the front of the block to FIP. No viscous fan or shroud on mine so loads of room!

Turbo-inj. pump hose

bluedog333

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