Major Setback

[RichT4]

So, after delving into the 'non starting' issue i have with the 2.3 T5 engine i think i have found the issue.
I checked the compression (hoping that it would be good).
P1 - 50psi
P2 - 50psi
P3 - 0psi
P4 - 62psi
P5 - 0psi

A little pissed off would be how i'd describe my mood right now, the last thing i want to do is rip apart the engine again after putting it back together to try and sort it out.
Can people possibly suggest the cause of this issue, I don't want to be right in suggesting Piston rings right now but how about torquing the head down? if this isn't done 100% right can this cause compression issues?

It's not really the amount i've spent in trying to fix this car that's annoyed me, its putting my trust in somebody saying the engines good when potentially it isn't?
Also the amount of man hours i have put in trying to sort this out.
Please give me good hope!!

[Ettienne]

Got to be valves, unless the ring are well past there best.

Even with tired rings you'd get some compression.

Have you had it apart?

[RichT4]

Got to be valves, unless the ring are well past there best.

Even with tired rings you'd get some compression.

Have you had it apart?

I put it together... lol
Didn't take out the valves because i was relying on the original supplier as being sound. he said the valves were straight.
What could be the exact issue with the valves be?

[Ettienne]

Burnt out, not seating properly, bent?

[claymore]

valves stuck open?, do we know the history of the head?

[Ettienne]

I don't see why they would all be gone though.

[RichT4]

valves stuck open?, do we know the history of the head?

I've been assured whole heartedly that the valves are all good and the head came out of a working engine with no problems.
The only thing i've just learned is that having a battery that's almost dead (regardless of whether it's hooked up to a running car) could mean the engine isn't cranking at full power?

[Ettienne]

I've been assured whole heartedly that the valves are all good and the head came out of a working engine with no problems.
The only thing i've just learned is that having a battery that's almost dead (regardless of whether it's hooked up to a running car) could mean the engine isn't cranking at full power?

You wouldn't have two dead cylinders, did you have the throttle fully open?

[dant5r]

I'd be worried about ALL the readings.

A cold engine should at starter motor speed produce a minimum of 100psi

[RichT4]

You wouldn't have two dead cylinders, did you have the throttle fully open?

Yes i did

[claymore]

throttle open, good battery and oil down the plug holes.

[RichT4]

I tried the oil down P1 after i got all the readings and it read 0psi

[RichT4]

Something else was mentioned about timing, if it's out of time will that cause lack of pressure?

[dant5r]

Have you timed/set up the vvt pulleys correct ?

They can be tricky to time/set up

[RichT4]

Have you timed/set up the vvt pulleys correct ?

They can be tricky to time/set up

i might have to recheck the timing and hope that it's this causing the low compression

[Doingitsideways]

Did you crank the engine by hand first?
Any resistance?

If the timing was far enough out it would mean the pistons and valves would contact and even the starter could have enough power to bend the valves.

You are giving it a good crank aren't you?
If you only turn the engine half a turn, it won't make any pressure at all on the exhaust stroke.

Daft ideas, but you never know.

[RichT4]

Did you crank the engine by hand first?
Any resistance?

If the timing was far enough out it would mean the pistons and valves would contact and even the starter could have enough power to bend the valves.

You are giving it a good crank aren't you?
If you only turn the engine half a turn, it won't make any pressure at all on the exhaust stroke.

Daft ideas, but you never know.

When turning it by hand it turned perfectly, it even turns over great via the starter motor.
You have your standard pressure resistance, but that's it. None that i would class as bending valves.

[t5 pete]

Don't know if it's been suggested above but have you put a tea spoon of oil down as that will eliminate ring but personally with all being down I'm sure it's a head problem has the head had any porting are the valves seating correctly are you doing the compression test correctly turn it over for roughly 3 seconds is your gauge working fine

[t5 pete]

Don't know if it's been suggested above but have you put a tea spoon of oil down as that will eliminate ring but personally with all being down I'm sure it's a head problem has the head had any porting are the valves seating correctly are you doing the compression test correctly turn it over for roughly 3 seconds is your gauge working fine

[RichT4]

Thank you for all the above posts, will look into all options here.