Thread: td5 defender power loss

Hi Wayne,
Is it possible that the head was laid down on a workbench with the injectors still in?. That would have been enough to damage them..
David

Assuming correct timing and injector cam clearances set correctly, Sounds like a boost problem.
When the head gasket failed was there coolant in the oil? does the turbo spin freely?

Yes mate the injector's were in the head when i took it to get reconditioned.May be the problem there.There was no water in the oil and yes the turbo does turn freely.

Originally Posted by 88 inch

Yes mate the injector's were in the head when i took it to get reconditioned.May be the problem there.There was no water in the oil and yes the turbo does turn freely.

This doesn't sound good. Obviously the injectors were removed to machine the head. Did the workshop refit them or yourself. Were the o rings and copper washers replaced?

Get the injectors checked and replace the fuel filter (if not done already). Good luck!
Cheers

G,day Strangy

The head place removed the injectors but i did put them back with new copper washers and o rings.I did clean off the carbon on them with a wire wheel but have had them checked and was told they are all ok.The head has had 6 thou taken off it and i fitted a 2 hole head gasket the same as the old one.Do you think it could still be the injectors?

Injectors need to go back in exactly the same spot. You cannot mix them up.

Cheers

Originally Posted by 88 inch

G,day Strangy

The head place removed the injectors but i did put them back with new copper washers and o rings.I did clean off the carbon on them with a wire wheel but have had them checked and was told they are all ok.The head has had 6 thou taken off it and i fitted a 2 hole head gasket the same as the old one.Do you think it could still be the injectors?

It will only be the injectors if they were mishandled. i.e damaged by the head being face down on a hard surface.
6 thou is pretty normal for a Td5 skim and the 2 hole gasket should be fine.


Replacing the injectors in different positions will not cause the problems you are experiencing. Though having the correct injector or code for position is desirable. The position of the injectors or correct injector codes relative to ECU saved position is only required for the ECU to trim (fine adjustment) the injectors for smooth running.


Can you confirm the timing was done with pins and not by eye and that the injector clearances were correct?
What does diagnostics tell you the boost pressure is?