Low Power

[gemini]

ive had an ex bt before and it wasnt restricted, you said it has low compression on no. 1 & 2 cylinders, what was the pressure and how quick did it get there

[Guy88]

Compressions were:
Cylinder 1 - 26 bar
Cylinder 2 - 28 bar
Cylinder 3 - 36 bar
Cylinder 4 - 37 bar

Not sure how quickly it got there

[Luke]

Compressions were:
Cylinder 1 - 26 bar
Cylinder 2 - 28 bar
Cylinder 3 - 36 bar
Cylinder 4 - 37 bar

Not sure how quickly it got there

whats that in psi

[daddy cool]

1 bar is roughly 14.5 psi

[gemini]

have you had the head pressure tested??, are you sure there are no hairline cracks in the pistons

[Guy88]

Head was tested by proffesional who said that he couldn't find any cracks he also said it wasn't warped.

couldnt see any cracks in pistons and i also filled the cylinders with oil and they didnt go down, i have also checked the valves and they all seem OK

[gemini]

oil wont go down try a bit of petrol see if it sits on top

[Luke]

Compressions were:
Cylinder 1 - 377 psi
Cylinder 2 - 406 psi
Cylinder 3 - 522 psi
Cylinder 4 - 536 psi

certanly looks like a problem between 1 and 2

does the problem occur when its hot only?

[Guy88]

oil wont go down try a bit of petrol see if it sits on top

This was very thin machine oil

The van is generally gutless and very difficult to start in the cold and sits there pumping out white smoke before finaly springing into life

[gemini]

This was very thin machine oil

still wont be able to tell with oil

[100ps_drw_hicube]

put some derv in that seems to work ok

[madmark]

di,s do tend to fume out of the rocker cover if its running on thin oil, also as 100ps says have you pulled the dipstick out when its running ,if its fumeing out of there then you have ring problems, but very unlikely for the miles the van has done! maybe a pump falt if its smokeing ,has the cambelt been done is the timeing correct?????,this will make it smoke and underpowerd if its not!

[Guy88]

There is nothing out the dipstick hole. i have just got it started again and tested it and it seems to warm up quicker and a slight improvment but not a lot. i am going to check the timing later and get the injectors tested

[madmark]

some di,s dont like running on the correct timeing ,you have to play around with it to get it perfect!

[100ps_drw_hicube]

have you checked the tappets as if there out they dont like starting