Is it me or the motor???

Take the elbow turbo hose of and get a mirror or old cd and a torch , and check your turbo fan blades are intact and the blades spin freely. When all back together you should feel the hoses get hard when you rev the engine.If still soft ,you have a leak somewhere

I have checked that it spins, although the shaft did not 'spin' when cold i put this down to no oil pumping, it could easily be turned by finger.

There was a bit of radial play, 1 or 2mm but metal-metal contact at all.

I did not get a mirror to look but will do that tonight.

Thanks

Dave

rollin danny said:

You've checked the turbo is ok and got pressure build up in your hoses when you rev the engine ? Check the narrow pipe from the turbo [goes round back of engine] to the fuel pump. Take it of and check for splits and blow out any oil. Take the top of fuel pump and check the diaphragm isn't stuck closed. Clean out oil in the fuel pump but dont rotate the diaphragm or it will mess with the fueling. If this is not working right you will have poor performance because you will not get boost fueling . It should make a big diference.

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Is that FUEL pump or INJECTOR pump ??????

Think he ment the injector pump. matey

Yep its the fuel injection pump. Think its four torx head screws to remove top.There is a Diaphragm inside that opens when enough pressure is force in via the thin pipe. You can gain more power by adjusting the pump . Do a search and you will find loads of info about it.

Ok, i now have no cat in the exhaust

I checked the pipe to the injector pump by taking it off the junction at the turbo, fitted a length of pipe and sucked on it, it held vacuum easily so no leaks. I know it runs under pressure not vacuum but its easier to detect a vacuum leak than a pressure leak.

So i guess the diaphragm is ok as is the pipe.

A road test showed a slight improvement in power but there was a LOT of black smoke now. After the engine warmed, things improved so i'm not sure what this shows?? I will test from cold again tomorrow morning to see if its a cold/hot fault or if it has cleared up.

My only theory is that the rest of the exhaust was full of crap and it was that blowing out, but i have doubts about that. Lets see what a cold start shows tomorrow.

I have also got a boost gauge coming to check what mr turbo is actually doing.

Dave

I'm new to this LR game and seriously questioned my logic when my Disco too was a real disappointment. EGR blanked off, changed filters, cleaned intercooler, fitted de-cat pipe and whilst some made moderate improvements, it still had little power than expected.

Paid £140 to a fella to sort it -

Only had 2lb of boost and had to thrash it to 3000 RPM to be able to change up the box even on moderate climbs.

I now have 15lbs of boost and drive around with a grin every time I drive it.

Have fun

Rob

cbrr3 said:

I'm new to this LR game and seriously questioned my logic when my Disco too was a real disappointment. EGR blanked off, changed filters, cleaned intercooler, fitted de-cat pipe and whilst some made moderate improvements, it still had little power than expected.

Paid £140 to a fella to sort it -

Only had 2lb of boost and had to thrash it to 3000 RPM to be able to change up the box even on moderate climbs.

I now have 15lbs of boost and drive around with a grin every time I drive it.

Have fun

Rob

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I am fully aware that they are not rockets, but it really does seem 'flat' on the pedal, i'm sure there's more there somewhere.

I have a boost gauge coming so that will give me some idea of whats actually going on inside her.

Whats the cure for low boost??

Dave

I know that some people adjust the waste gate so that it take more force to open so in affect allowing high boost before the gate opens. However i have read that this can have some side effects on the head. My turbo only seems to be on boost at 2800rpms so think we have a same issue. Gonna watch this thread, and maybe find a solution lol.

Just a thought. Did you clean the sedimenter out when you did the service ? Some people miss them because they dont know they are there. A blocked one would restrict your fuel flow.

The black smoke could be the dreaded turbo pipe delamination ! Usualy its the elbow to turbo that delaminates under load and shuts of the air to engine, loads of black smoke. Take your foot off the pedal and the pipe returns to normal. Its common with old pipes.

I've had the elbow off and cleaned it, looks ok but i'll bear it in mind.

The sedimentor is the only bit not done yet, i have the seals and hope to get on to it this weekend.

First signs this morning were promising, the black stuff seems to have cleared, i'll get a workmate to do a "follow-me" road test to check the output while i'm driving, see what happens.

Dave

just undo the top bolt when you do sedimenter-think its 10mm spanner

They put that thing in a great location

Mine smoked like hell after fittiong the de-cat pipe but cleared up after a mile. Hasn't done it since. Think it just blasts the crap out, now that its more free flowing

alex8882 said:

Mine smoked like hell after fittiong the de-cat pipe but cleared up after a mile. Hasn't done it since. Think it just blasts the crap out, now that its more free flowing

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I think thats what happened to me too, first tip i was getting flashed and overtaken by ****ed off looking drivers, rearview mirror showed clouds of black out back, i was really baffled.

This morning its all settled down and clear again

The power is till not right but it IS better and will now hold steady on a hill instead of slowing down.

I'll check the tappets next, fuel sedimentor, turbo boost and thats probably as far as i can go.

Dave

sounds like plan. I've got to check my turbo as i know it has play on the shaft. Plus i know my turbo seals are leaking, got oil in the intake. Sedimenter is fairly easy job todo, just wonder how much man cheese will come out of yours lol.

When you do the sedimentor, do you need to bleed the pump again??

I also had oil in the intercooler, quite a bit, but its not blowing blue smoke so i'm ignoring it at the moment.

Nah you shouldn't need to bleed the system afterwards, well i didn't need to on mine that is lol.

alex8882 said:

Nah you shouldn't need to bleed the system afterwards, well i didn't need to on mine that is lol.

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Thanks for that