Thread: Td5 a little down on power and lumpy idle from start

Originally Posted by sierrafery

That's the third case for me when i see genuine o-rings leaking from the beginning, one was with my opwn eyes... IMO LR messed something up with the dimensions like they did with the drive shaft seals

beside that did you adjust the injector clearances after the replacement?

More likely the installer didn’t lube up the injector housing and ring before fitting, rolling it and pinching the edge.

Originally Posted by Tombie

More likely the installer didn’t lube up the injector housing and ring before fitting, rolling it and pinching the edge.

In the case i've seen myself the green genuine o-rings out of a LR badged pack were thinner than the old ones measured with micrometer and the mechanic said the injectors went back too easy, my friend bought viton o-rings from a local store based on the dimensions of the old ones then all was good.... after that a guy from landyzone reported the same issue

Originally Posted by sierrafery

That's the third case for me when i see genuine o-rings leaking from the beginning, one was with my opwn eyes... IMO LR messed something up with the dimensions like they did with the drive shaft seals

beside that did you adjust the injector clearances after the replacement?

The work was done by a dealer so I can only assume that the injector clearances were adjusted.

Now of course this whole episode throws up all sorts of doubts the biggest being; was the old head really cracked ? Ie. When they tested it did they see fuel seeping out around the injector(s) and test by replacing the washer(s) and o-ring(s) and saw fuel still seeping out and then assume that the head was cracked? Now I ask did they fit the o-ring(s) correctly ? If not, then the head my well have had no cracks and I've wasted a **** load of money which I struggle to afford. They've now proven that they can't do the job properly or the new head is defective (hard to believe).

The car is now worse than it was before the head replacement. Ie. Oil level is rising faster than it was, starting is now a hit or miss affair with a very lumpy idle for a few seconds and it's down on power. None of these issues existed before the head was replaced.

Misdiagnoses of the original problem ? Shoddy workmanship ? Defective new head ? Defective or undersize O-rings ? Defective or mis-sized washers ? These questions have already been raised with the dealer and will be canvassed further when I give them the car again on Tuesday.

I only wish I could get my hands on the old head. I asked that the old head be left in the car but it wasn't, it was disposed of before I could see it...grrrrr.

Originally Posted by Markf

The work was done by a dealer so I can only assume that the injector clearances were adjusted.

Now of course this whole episode throws up all sorts of doubts the biggest being; was the old head really cracked ? Ie. When they tested it did they see fuel seeping out around the injector(s) and test by replacing the washer(s) and o-ring(s) and saw fuel still seeping out and then assume that the head was cracked? Now I ask did they fit the o-ring(s) correctly ? If not, then the head my well have had no cracks and I've wasted a **** load of money which I struggle to afford. They've now proven that they can't do the job properly or the new head is defective (hard to believe).

The car is now worse than it was before the head replacement. Ie. Oil level is rising faster than it was, starting is now a hit or miss affair with a very lumpy idle for a few seconds and it's down on power. None of these issues existed before the head was replaced.

Misdiagnoses of the original problem ? Shoddy workmanship ? Defective new head ? Defective or undersize O-rings ? Defective or mis-sized washers ? These questions have already been raised with the dealer and will be canvassed further when I give them the car again on Tuesday.

I only wish I could get my hands on the old head. I asked that the old head be left in the car but it wasn't, it was disposed of before I could see it...grrrrr.

I've seen this sort of circus clown repairs from the local "super duper lube" centre (not actually a business) that typically get one or two Land Rovers a year. It really is a everyday simple repair for a Land Rover specialist. These sort of stuff ups would be laughable if it wasnt costing owners so much.

But as the OP has already gone down the unfortunate path of taking it to...... lets face it, a repairer that simply hasnt got a clue (personal opinion), they now need to rectify the problem and at no additional cost.

*When ever I remove an alloy head, I hardness test it myself then send it off to the local head centre (Perth: Head Exchange) to confirm hardness, flatness and to test head.
*Genuine injector seals, I've been using for a small lifetime on countless injectors with no issues.
*After doing any head work, I drive the vehicle around to ensure there is no more issues before giving it back to the client.

Originally Posted by DazzaTD5

I've seen this sort of circus clown repairs from the local "super duper lube" centre (not actually a business) that typically get one or two Land Rovers a year. It really is a everyday simple repair for a Land Rover specialist.

Apparently this is a Land Rover specialist. They are after all, THE Latrobe Valley Land Rover dealer. Over time they should've done squillions of injector O-rings and washers.

These sort of stuff ups would be laughable if it wasnt costing owners so much.

Absolutely.

But as the OP has already gone down the unfortunate path of taking it to...... lets face it, a repairer that simply hasnt got a clue (personal opinion), they now need to rectify the problem and at no additional cost.

They WILL be fixing the whole stuff up at no cost to me. I don't care if they need to fly a senior Land Rover engineer with a new engine from the UK. It MUST be in perfect running order before 18th April as we leave for a 3 month working holiday on 20th April. Either my vehicle is in perfect working order or they loan me a vehicle that is.

*When ever I remove an alloy head, I hardness test it myself then send it off to the local head centre (Perth: Head Exchange) to confirm hardness, flatness and to test head.
*Genuine injector seals, I've been using for a small lifetime on countless injectors with no issues.
*After doing any head work, I drive the vehicle around to ensure there is no more issues before giving it back to the client.

A proper test drive was clearly not done. When I get it back after having this lot fixed it'll be ME who does the test drive and if it doesn't measure up they'll be told that it's not acceptable and that they need to get it up to standard.

Bear in mind that all this work was done by a supposedly respected, if somewhat pricey, Land Rover Dealer.

I apologise for this drifting away from "Technical Chatter" and into workshop competency.

Well I got it back from the stealers today. They had made a has out of installing the injectors and had destroyed 3 o-rings.

While I was waiting I asked the service manager why it was taking so long. Apparently the person (for want of a better word) who was doing the work "didn't know that you had to re-adjust the injector clearance after taking the rocker shaft out"

You can bet that I'll be keeping a very close eye on the oil level. All of the questions I posed as per my post earlier were met with meaningless platitudes.

A change of mechanic is warranted methinks.

Oh well I suppose I can bathe in the knowledge that my car has been worked on by Neanderthal Man and how many can boast of that.

Originally Posted by Markf

Well I got it back from the stealers today. They had made a has out of installing the injectors and had destroyed 3 o-rings.

While I was waiting I asked the service manager why it was taking so long. Apparently the person (for want of a better word) who was doing the work "didn't know that you had to re-adjust the injector clearance after taking the rocker shaft out"

You can bet that I'll be keeping a very close eye on the oil level. All of the questions I posed as per my post earlier were met with meaningless platitudes.

A change of mechanic is warranted methinks.

“Oh well I suppose I can bathe in the knowledge that my car has been worked on by Neanderthal Man and how many can boast of that.

”

You are having a rough time of it Mark, hopefully the light at the end of the tunnel is nigh😉
More than likely an unsupervised apprentice who has learnt a lesson (at your expense).

Sounds like you are nearly there mate, time for some ‘reliable’ 4x4 ing😃

Cheers,
Paul

Or a tech who only started since 2004 and hasn’t seen a unitary injector.

It all changes so fast nowadays. Within a few years the old stuff isn’t even seen in a *dealer* workshop.