No power Expert 2.0 hdi

[FYL]

Hello

I have a Peugeot expert with the RHK engine that have no power. It feels just like the turbo is dead.

It began with the rocker arms failing due to broken timing belt.
Changed them and put everything back. It started right away but had no power.

I have checked the timing several times.

I can see that with a OBD scanner that questioned turbo pressure is little lesser than it should and even checked and fixed leaks.

I have come to a dead end and nothing seems to fix it.

I wonder if someone have had similar problems after having the head of?!
Valves are not leaking.

Could it be some wiring issues?

[CitroJim]

How do you know the valves are not leaking? My only experience of resurrecting an engine that broke it's rockers following a cambelt break - a 2.1TD XUD11 engine - resulted in a few very, very slightly bent valves. The engine ran and started fine but the dead give-away was a chuffing sound and a little smoke issuing from the inlet tract - detected by disconnecting the pipe between the turbo outlet and the inlet manifold. In this case the engine ran fine when cold and the problem developed as it warmed up.

If not that, and the valve sealing has been confirmed by way of a leak-down test then you will need to check the turbo waste-gate actuation solenoid and EGR solenoid operation along with the integrity of the vacuum supply to them...

Proper Lexia diagnostics may be valuable in nailing this problem down. Also, and importantly, does the engine smoke at all? If so, under what conditions and what colour might the smoke be?

Finally, it is possible the cat has become blocked as a result of the aftermath of the cambelt breaking... I've known this happen on a 1.9TD that suffered a failed head gasket... It';s unlikely in your case but when chasing low power issues, always worth eliminating...

[FYL]

Thanks for your answer.
I have tested valve leaks when I had the head off.
Poured som diesel and it did not go through.

I put a camera filming the wastegate engine running (standing still). And it moved accordingly. I think anyway. How do I test it otherwise? Haven’t found any leaks on the vacuum line.

The EGR I have plugged but it didn’t do any difference either.

[FYL]

Forgot to tell that I have also tested without exhaust. No difference.
No smoke when running neither from exhaust or intake

[moizeau]

Is this one of the engines where the camshaft can twist? Someone with greater knowledge than I will spark up hopefully.

[FYL]

No i dont think so. Never heard of.

One thing I’m a little concerned about is that I bathed all the hydraulic lifters in gasoline to clean them from the very old oil. I been thinking If that could cause damage and the don’t open up the valves as much as they should.
But bad lifters usually gives that rattling noise

[wheeler]

Have you checked that the woodruff key/keyway has not sheared on the camshaft making you think the timing is spot on but it’s actually out a little? Its not unusual for these to shear with a timing belt failure.

[CitroJim]

One thing I’m a little concerned about is that I bathed all the hydraulic lifters in gasoline to clean them from the very old oil. I been thinking If that could cause damage and the don’t open up the valves as much as they should.
But bad lifters usually gives that rattling noise

No, I would expect them to rattle like a bag of spanners if that was the case...

Good call on the woodruff key Wheeler... On the 2.1TD I mentioned earlier it destroyed the camshaft sprocket quite spectacularly...

Is this one of the engines where the camshaft can twist? Someone with greater knowledge than I will spark up hopefully.

Now that's a possibility! I've known a 1.9TD cam snap after a cambelt failure but several months after the event... It seemed OK but time proved otherwise... The 1.9TD does not have rockers to break so the camshaft would be under far more stress when the belt broke compared to the HDi where the rockers are almost designed to break under such circumstances.

I wonder if the full timing details are available for the engine so that the OP could check using a large protractor on the cam sprocket and a DTI on the cam lobes. That way, any twisting on the cam could be detected...

[FYL]

Have you checked that the woodruff key/keyway has not sheared on the camshaft making you think the timing is spot on but it’s actually out a little? Its not unusual for these to shear with a timing belt failure.

Yes I have had the sprocket off and it was fine.

First time I had it assembled I got the timing wrong between the camshafts (chain).
Belt was right though.
The engine started but gave 10 fault codes right away.

When I fixed it the engine was easier started and didn’t give any codes. Slow as a snail though…

[FYL]

One thing I’m a little concerned about is that I bathed all the hydraulic lifters in gasoline to clean them from the very old oil. I been thinking If that could cause damage and the don’t open up the valves as much as they should.
But bad lifters usually gives that rattling noise

No, I would expect them to rattle like a bag of spanners if that was the case...

Good call on the woodruff key Wheeler... On the 2.1TD I mentioned earlier it destroyed the camshaft sprocket quite spectacularly...

Is this one of the engines where the camshaft can twist? Someone with greater knowledge than I will spark up hopefully.

Now that's a possibility! I've known a 1.9TD cam snap after a cambelt failure but several months after the event... It seemed OK but time proved otherwise... The 1.9TD does not have rockers to break so the camshaft would be under far more stress when the belt broke compared to the HDi where the rockers are almost designed to break under such circumstances.

I wonder if the full timing details are available for the engine so that the OP could check using a large protractor on the cam sprocket and a DTI on the cam lobes. That way, any twisting on the cam could be detected...

This is interesting! You mean the camshaft could twist and be off/ruined?

[CitroJim]

This is interesting! You mean the camshaft could twist and be off/ruined?

Potentially, yes. If you have checked absolutely everything else and excluded every other possibility it's worth a check...

Before that though, get it hooked up to a Lexia and check you are getting all the correct turbo boost pressures...

[wheeler]

This is interesting! You mean the camshaft could twist and be off/ruined?

On some of the HDi engines (not sure about your variation specifically) the cam lobes are actually pressed on to the shaft rather than it being machined from a single piece of metal meaning if given enough force (like a timing belt failure) they can (and do) actually move from their original position on the shaft. I have found a lot of the time this doesn’t always even happen i pairs either so you can often even see it by eye if you compare the pairs of lobes on each shaft.

[moizeau]

First time I had it assembled I got the timing wrong between the camshafts (chain).
Belt was right though.
The engine started but gave 10 fault codes right away.

When I fixed it the engine was easier started and didn’t give any codes. Slow as a snail though…

So one cam was correct and the other was out.
A leakdown test should confirm that a valve hasn't been kissed.

[FYL]

This is interesting! You mean the camshaft could twist and be off/ruined?

On some of the HDi engines (not sure about your variation specifically) the cam lobes are actually pressed on to the shaft rather than it being machined from a single piece of metal meaning if given enough force (like a timing belt failure) they can (and do) actually move from their original position on the shaft. I have found a lot of the time this doesn’t always even happen i pairs either so you can often even see it by eye if you compare the pairs of lobes on each shaft.

Very interesting! Need to check that.
How do I know if my engine has that construction?
I think mine is DW10UTED

Shouldn’t the engine run ruff though?

[FYL]

Update:
Have done compression test and every cylinder had 210-225psi.
Probably next step is to check if the cam has lobes that are off.
Is it possible that the chain sprocket also could be pressed on?