BMW M51 2.5 td engine gurus range rover p38 (youtube clip)

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Don't run it with the EGR/induction Pipes unattached, put the Accelerator Pedal Back and try not to let the poor thing bang of the top end of the rev counter, no wonder it sounds like a bag of nails....

Put it all back where it came from, then post a video of what it is doing when it is correctly assembled.....whilst it is in bits and not plumbed in properly, we could be here forever and a day postulating ideas.....
 
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Thanks for the reply. Sorry maybe i should of explained things abit first.. With it all together it does exactly the same with no change what so ever, i cant control the revs at all with or with out the throttle sensor pluged in. Only took the top boost hose off for 2 reasons 1) so it isnt boosting up when it start's and the revs fly up, 2) so i dont get aload of people saying the turbo has gone and its a run away on its own oil which its not. Could the 4th injector do this??
 
Where is the throttle pedal? Throttle is fly by wire from a potentiometer on the throttle pedal. If you have disconnected this and the pot is at full chat no bloody wonder it's bouncing on the fuel cut off point.
 
i havnt had it apart yet, its been to 3 other so called mechanics before me and has had a pump fitted and does the same as it did with the old pump. The car belongs to a friend of mine and he has had enough, as he has already spent a fortune on it and its still broke. its fate really isnt looking good as its been brought to me to break which is a shame!! just hope it mite be something fairly simple to fix?? Saying this another friend of mine is really interested in it, if he can get it at the right price. Between us both we have come up with a good project and some ideas like replace the (already dodgy) auto box for a manual and fit a mechanical pump of a bmw m21 engine as i have already seen a few bmw owners doing this to the m51 with some very interesting gains. then we can more or less sack alot of the ecu/edm electronics rubbish and also run it on alternative fuels.. Also the real fun can began as i have tweaked a fare few mechanical injection pumps over time and you can do stuff like gov mods and reground LDA pins. Should get some serous and RELIABLE performance out of it with out a computer or cable in sight..
 
wammers said:
Where is the throttle pedal? Throttle is fly by wire from a potentiometer on the throttle pedal. If you have disconnected this and the pot is at full chat no bloody wonder it's bouncing on the fuel cut off point.
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as i already said above it does exactly the same with or with out the throttal senser pluged in the revs are completely uncontrollable!! Which make me think it could be an ECU/wiring fault?
 
hen2a said:
i havnt had it apart yet, its been to 3 other so called mechanics before me and has had a pump fitted and does the same as it did with the old pump. The car belongs to a friend of mine and he has had enough, as he has already spent a fortune on it and its still broke. its fate really isnt looking good as its been brought to me to break which is a shame!! just hope it mite be something fairly simple to fix?? Saying this another friend of mine is really interested in it, if he can get it at the right price. Between us both we have come up with a good project and some ideas like replace the (already dodgy) auto box for a manual and fit a mechanical pump of a bmw m21 engine as i have already seen a few bmw owners doing this to the m51 with some very interesting gains. then we can more or less sack alot of the ecu/edm electronics rubbish and also run it on alternative fuels.. Also the real fun can began as i have tweaked a fare few mechanical injection pumps over time and you can do stuff like gov mods and reground LDA pins. Should get some serous and RELIABLE performance out of it with out a computer or cable in sight..
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Interesting, you are going to fit an old fashioned mechanical FIP? Seems pointless. The electronic FIP is perfectly reliable apart from timing chain stretch which is easily rectified. It may well fail the new MOT on emissions or non homologated changes to the engine with the FIP changed.
If as you say it has had a pump fitted, do you mean the FIP? Because if so it could well be a timing problem.
 
hen2a said:
as i already said above it does exactly the same with or with out the throttal senser pluged in the revs are completely uncontrollable!! Which make me think it could be an ECU/wiring fault?
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The only thing that will make it rev like that is the fuel quantity solenoid being signaled to or stuck in the flat out position. Running it like that is a good way to knacker it that's for sure.
 
hen2a said:
i havnt had it apart yet, its been to 3 other so called mechanics before me and has had a pump fitted and does the same as it did with the old pump. The car belongs to a friend of mine and he has had enough, as he has already spent a fortune on it and its still broke. its fate really isnt looking good as its been brought to me to break which is a shame!! just hope it mite be something fairly simple to fix?? Saying this another friend of mine is really interested in it, if he can get it at the right price. Between us both we have come up with a good project and some ideas like replace the (already dodgy) auto box for a manual and fit a mechanical pump of a bmw m21 engine as i have already seen a few bmw owners doing this to the m51 with some very interesting gains. then we can more or less sack alot of the ecu/edm electronics rubbish and also run it on alternative fuels.. Also the real fun can began as i have tweaked a fare few mechanical injection pumps over time and you can do stuff like gov mods and reground LDA pins. Should get some serous and RELIABLE performance out of it with out a computer or cable in sight..
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With that amount of expertise why are you asking us? Put it back together properly and put it on diagnostic and see what faults are listed would i think would be first job. Your just guessing at the moment.
 
It is a long shot and was just a few idea me and my mate was bouncing about, will probable never happen and aload of p38 parts will be up for grabs?? Not worried atall about MOT emission ;) Yea it has had a FIP changed and all the timing marks line up, i did read some where about the crank sprocket slipping but the timing marks line up as on autodata. I will take a look at the top section of the FIP
 
hen2a said:
It is a long shot and was just a few idea me and my mate was bouncing about, will probable never happen and aload of p38 parts will be up for grabs?? Not worried atall about MOT emission ;) Yea it has had a FIP changed and all the timing marks line up, i did read some where about the crank sprocket slipping but the timing marks line up as on autodata. I will take a look at the top section of the FIP
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You need a dial guage and special tools to set the static timing:rolleyes:
 
geezz!! i think i have come to the wrong place here!! I was warned as the owner who got the same sort of responses.. the car went to a garage call Alan Smiths advertised as 'derby's number One Range Rover Discovery Freelander Specialists' he charged the owner over £140 for a diagnostics harness repair and diagnostics scan just to tell him there is NO CODE! just like my scanner has said//
 
hen2a said:
geezz!! i think i have come to the wrong place here!! I was warned as the owner who got the same sort of responses.. the car went to a garage call Alan Smiths advertised as 'derby's number One Range Rover Discovery Freelander Specialists' he charged the owner over £140 for a diagnostics harness repair and diagnostics scan just to tell him there is NO CODE! just like my scanner has said//
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Well if you don't want to check the basics and you know it all why don't you **** off:violent:
Oh and the ECU is not OBD compliant, most scanners will not read the faults.
 
hen2a said:
It is a long shot and was just a few idea me and my mate was bouncing about, will probable never happen and aload of p38 parts will be up for grabs?? Not worried atall about MOT emission ;) Yea it has had a FIP changed and all the timing marks line up, i did read some where about the crank sprocket slipping but the timing marks line up as on autodata. I will take a look at the top section of the FIP
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The crank sprocket can't slip it is keyed. Oil pump drive can slip if pulley is not torqued up correctly. I take it you mean marks to chains if you have had front cover off. There are no timing marks on the pump. That is done at TDC number, one locked off, with special tools it is not guessable.
 
wammers said:
The crank sprocket can't slip it is keyed. Oil pump drive can slip if pulley is not torqued up correctly. I take it you mean marks to chains if you have had front cover off. There are no timing marks on the pump. That is done at TDC number, one locked off, with special tools it is not guessable.
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The holiday did you good Tony, you are very mellow today:);)
 
Datatek said:
The holiday did you good Tony, you are very mellow today:);)
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I am just sitting here in disbelief Keith to be honest. It's a bit hard to take in that someone can be so stupid to run it without all the engine controls coupled. Letting it bounce on the fuel cut off. At least that part of the ECU is working.
 
Datatek said:
Well if you don't want to check the basics and you know it all why don't you **** off:violent:
Oh and the ECU is not OBD compliant, most scanners will not read the faults.
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That comment wasnt aimed at you as you are the only one who has come up with somthing to go on, Im not the fast's typer and speller as you can probabe tell its hard to keep the pace up with out people getting confused.. I obviously dont know it all as i wont be on here getting entertained by such pleasant people :rolleyes: i can see this has already gone the wrong way and probs is best to leave the subject! i only wahted to help a friend and try save a range rover.. next time i want bother

if i had a scanner i would put a pic of the recipet from the garage also i used a snap on solus to scan
 
Who was it aimed at then? You're playing at being a mechanic and not very well it would seem.
 
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