Recent engine rebuild ( Loudish Metalic Ticking noise)

[cupra_r_ick]

that looks fine to me mate.
the results you posted of your compression test are drastically low though.....
did you try doing a wet and dry test ?
do it dry, record the results
then put a drop or two of engine oil into the cylinder and repeat. this will help seal the rings. if the results jump up you have probs with your rings.
if they dont go up you need to do a cylinder leakage test. set each cylinder at top dead and lock it (if you can) if you cant youll have to put it in gear and put a bar on the crank pulley and stop it turning, connect up the cylinder leakage tester and simply see if it leaks. if it does leak, listen to certain areas, like the oil filler cap etc, if you can hear it leaking loudly there, then its an indication the valves arent seated correctly. obviously for this you need a compressor....

 

[DaNnY_LaD]

Yeah Timing is spot on as which i thought tbh...But whats getting me is that once is driven it fine...If i drive it with it cold it will sound like is missing but not splutter like a coilpack would...Soon as its 90c water is gets better...

Im going to order a new MAF and CTS and take it from there...It obv has to do something with the engine warming up...Not enough fuel or something...

 

[cupra_r_ick]

at work i had similar issue when a maf was gone, but it was misfiring on all cylinders as opposed to just the one., id expect similar if it was vario cam fault fault. are the injectors interchangeable ?
might be worth switching the injector to a different cylinder as well as switching the plug and coild to different cylinders, to see if the misfire changes cylinder

 

[DaNnY_LaD]

hmm interesting, can you check the readings of the coolant temp sensor on vag com ?
cars at work have on for the guage/dials, and one that controlls the cold start phase etc, this the same on ours ?

Yes.Im pretty certain i can with vagcom but not sure which block....it was philW that mentioned it to me earlier...

Its gotta be something todo with cold start phase...

 

[cupra_r_ick]

damn, edited my post and deleted that. if you scroll threw the blocks i swear ive seen it in there.
why would something to do with the cold start phase only effect one cylinder though ?
have you erased all the codes, started it, waited for it to fault, turn off and read the codes asap. the fault might be causing other codes that arent actually faulty if you get what i mean ?

example, my turbo being SHITE, caused a maf and n75 fault. neither were faulty just turbo being a spaz

 

[DaNnY_LaD]

damn, edited my post and deleted that. if you scroll threw the blocks i swear ive seen it in there.
why would something to do with the cold start phase only effect one cylinder though ?
have you erased all the codes, started it, waited for it to fault, turn off and read the codes asap. the fault might be causing other codes that arent actually faulty if you get what i mean ?

example, my turbo being SHITE, caused a maf and n75 fault. neither were faulty just turbo being a spaz

Interesting,

I get a miss fire code on Cyl 4 all the time along with the Knock sensor 2 but i also randomly get miss fire on 3...Well i used too since ive been driving it it hasnt come back oddly..The injectors are interchangable IRRC...But its fine once warm which is doing my head in...

Im going to Halfrauds tomorrow to buy a compression tester...

 

[cupra_r_ick]

right, im thinking that it may be injector related on that note. swap cylinder injectors with 1 and 4.
you say you removed the coil from cylinder 4 (its best to just pull them out rather than un plug them) and it made no difference on cold, i bet when you do it hot its fine. im thinking that an injector may be leaking when cold/not running, causing cold start misfires, swap the injectors and get back to us
shame your not closer to me coudl come try my injectors

 

[joehirth]

Sorry I haven't read all of this but have you replaced or played with the injector seals on the inlet. A gap in these will cause missfire and since they're plastic they'll probably expand enough to seal the hole when hot. You need to do a boost leak test really

 

[DaNnY_LaD]

Thanks everyone...

Im going to buy a New Maf,CTS And injector seats..

It seemed better tonight on cold Phase running as you can tell from the video but keep an eye out for when my Camera Phone is near the Airfilter and goes down near the Gearbox...Ignore the tapping sound near the back and side of the car its my kids playin up as i was out side ....

It actually doesnt sound like its missing does it like really bad maybe slightly my EML light does come on no more either and doesnt flash at me..

Noise is defo coming for the DMF Area for sure..

Video:
http://www.youtube.com/watch?v=6gH6B0aiAKg

 

[DaNnY_LaD]

ive got a new Maf on order and im picking my CTS up tommorrow...

I really need to get a compression test done

 

[DaNnY_LaD]

Righto bit of a update today with the weather being colder it was considerably worse on warm up put you could her it slightly chugging once hot...Same As usal tbh...

Anyway i finally got round to my mates garage and done a compression test...With the Car hot i took out the following cylinders plugs & packs one at a time with the coils disconnected and the Injectors unplugged too...So with the Foot down for 10seconds each i got these readings:

Cylinder 1, 13bar
Cylinder 2, 13bar
cylinder 3,13bar
Cylinder 4, 11 bar

So what we did was a wet test on cylinder 4 with 1 teaspoon of new motor oil and it went to 12bar .....

Also this is what my 100 mile old Plugs look like:

 

[joehirth]

Oh dear rings not seated properly?

 

[DaNnY_LaD]

i have no idea...Only got a slight increase in pressure with a wet test

 

[joehirth]

Yeah maybe only slight increase but it's 50%. Should the wet test give you an indication of whether or not the rings are seated, I've not done one before?

 

[cupra_r_ick]

the oil helps seal the rings, so, an increase in pressure indicates worn/issues with rings

 

[rk696]

Don't them plugs look too clean? Almost like the engine is running lean?

Mind you, thery're nearly new.

 

[DaNnY_LaD]

Hoping it ain't the rings but if it is so be it...

But speaking to Alex I'm going to log 020 to read my knock as i keep getting the knock sensor 2 code...

forgot to mention that with the engine running when cold and i unplug coilpack 4 nothing happens...yet if unplugg any of the others it will hunt for revs and cut out...

 

[joehirth]

Hoping it ain't the rings but if it is so be it...

But speaking to Alex I'm going to log 020 to read my knock as i keep getting the knock sensor 2 code...

forgot to mention that with the engine running when cold and i unplug coilpack 4 nothing happens...yet if unplugg any of the others it will hunt for revs and cut out...

Hopefully it's not the rings. But when you tak out the coil and plug what else could it be that is causing loss of pressure...? Well worth hunting around for a spare coilpack, maybe try swapping them over see what that does.

 

[DaNnY_LaD]

I've tryes the coilpacks swapped them over ECT... I'm pondering to quickly wip head off and change the rings...and inlet valves..

 

[PhilW]

Log blocks 014 and 015, or whatever misfire detection is as well.