right after a few days of fighting it again...

 

i got the cylinder head off, and it dont look good,

 

i was expecting there to be oil in the cylinder, due to either blow valve piston ring, or turbo... and there nothing like that help

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the cylinder on the left is the one thats not firing, i dont know what it meens but compared with the good 2, its dryer, and generally more brown, looks almost burnt

 

i dont know what it means, but there no oil in there? so can it be piston rings or valves?,

 

im very confused...

i know its not the rings the cylinder walls are too clean, no marks what so ever

 

as the oil smells of fuel, im going to guess its a valve not working as it should, ie not closing, checked injector and plugs, so its not them,

 

suppose it could be the ptu not firing at the right time,

hiya pal get the pistons half way dwn and poor deisel into the cylinders leave it for a few hours and u can see if it loses and fluid. do the same with the valves to see if they got a leak

yeah tried that with a really thin oil, (wd40 type stuff) didn't go down at all!!! in any of the cylinders or valves

 

i found the problem anyway... an injector was to blame, looked like it was running and for all purposes it was but the seals had gone round it, so wasn't fuelling the cylinder properly,

 

i cant believe i missed it.... took the whole bloody Z apart too...