blueskies85

Getting fuel and a good spark, still no sign of starting. Get a cough and a splutter, it may run and then it cuts out... any suggestions and methods will be a great help as im pulling my hair out at the minute.

Cheers

Karlos G

iTrader: (4)

First thing to check is for air leaks mate, boost hoses, breather hoses etc..

juffer

Check timing with a gun. A good all round position is 12deg. Maybe check compression.

blueskies85

checked mechanical timing and the bottom pulley is at 8 when the top is at zero, so all is good there, as far as airleaks are concerned, what is the best way to check for it?
It wants to start sometimes on the first turn of the key after a 10 minute rest but it is just the mildest cough.
As far as compression is concerned i drove it back from where i bought it yesterday but will check it none the less.
Anymore ideas?

OLDSKOOLRYAN

make sure your battery is fully charged, mine wont start unless its got 12 volts

juffer

In theory if you have a good spark, fuel and good timing it should start. Make sure the oil cap is on and look for leaks as karlos said. I checked my system by tapeing up the exhaust and putting a carrier bag over the metering unit and do the airfilter up so it is airtight. I removed the dumpvalve and fitted a home made valve. It was a washer welded to a tube with a tyre valve through the washer. I then pressurised the system to about 4-5 psi with a tyre inflator on a compressor. You will hear the leaks if you have any and its supprising how many and where they come from. BEWARE OF THE CAP DOES NOT BLOW OFF IN YOUR FACE. Only put about 4-5psi in !!

Karlos G

iTrader: (4)

Or....... just block off the return from the rocker cover to the metering head (MH side, let RC breathe to atmosphere) and if it starts and runs you know you have a leak somewhere!

Remove all hoses and check for splits etc...

blueskies85

ok guys thanks for the advice... i left it for a couple of hours and it coughed the first time, then fired then stopped, then it started and i caught it on the throttle, i revved it gently and it wouldnt idle properley so i kept the throttle open slightly on the cable and unscrewed the idle valve till it was idling properly. I then drew my attention to the blueish smoke that was coming out of the exhaust, more so when i revved the engine. I put this down to playing around with the engine and it died down when she was warm but still slightly slightly there when i blipped the throttle.
It then cut out as the oil filler cap popped off, i put it back on and it wouldnt start again, almost like it is flooding straight away. It ran out of batt so i called it a night and drove home in my other s2.
On the way home i was thinking things through and i figured that it must be overfueling as i left it in a warm hanger for about an hour and then it coughed then started, almost like the fuel was being slowly burnt off with every turn of the key and then when it died again it coughed then wouldnt start.
As for the blue smoke it is the least of my worries at the minute until i get it started but there was a small amount of almost tapping, not loud but noticeable, it died down when it was warmed but i think it must be something in the head, i just hope it aint the turbo as it is a stage 3 but im sure i can get it serviced for (hopefully) not too much money, if it is the turbo... i definately think the blue smoke has something to do with the gentle tapping heard from the engine and not from the turbo as i have had turbos go before and plumes of smoke come out...
Any comments would be most helpful... oh the spec of the engine is as follows:

Engine rebuilt 8k ago (what i was told)
stage 3 turbo
baileys chav valve
piper t2 cams
unlimited boost chip
31 actuator

Cheers

juffer

The blue smoke could be valve stem seals as you started it from cold .If the oil cap blew off and it stalled which it would do as its mfi. It may of blew off because there may be blocked breathers, head gasket faliure or rings.If it is burning oil and hard to start then the plugs maybe fouled up. there just ideas i would consider checking.

blueskies85

i checked the plugs mate and they are good... i know fuel burns black but could it be excess fuel in the exhaust as when i removed the plugs they were sopping wet with fuel

blueskies85

im going to change the plugs anyways just to make sure, i wonder if i should swap the heads over with my sweet running one to see if it is the piper cam and or valve stem seals?

juffer

It sounds like its over fueling quite alot then. Burnt oil tends to be blue and too rich is like a sooty colour. Tryin to start the car and not doing any miles on it will flood the engine. if i was you i would take the plugs out and let the fuel evaporate for half hour and then try again. If it smokes blue on start up i would still think its valve stem seals.

blueskies85

ok mate ill have a look around it on friday, gonna take a day away from it tomorrow as it is giving me a headache, i have been reading the other posts about and i have noticed oil in the engine bay, possibly from the dump valve, this can be caused by piston rings so i am beginning to wonder now, its no problem cos as a last resort i have got a car that i can use the engine from.
looks like im into a busy christmas holiday! anyone in the Oxford area fancy earning some beers for swapping an engine over?

juffer

dont go swoping heads just to change the valve tem seals. You can change the seals with the head and cam in place. You can buy a tool that holds the valve spring down so you can remove the collets and the valve assembley. It will only cost a few quid for the tool.When you replace the stem seals use top hat ones.

blueskies85

i think i have got that tool, is it the one that looks like a huge g clamp? Will that explain the gentle tapping from the head?

juffer

From memory the tool is kind of oval with a small slot in one end and a bigger slot in the other with a hole in the centre. A tapping noise maybe a tappet that is not turning, a worn tappet or just simply one that is drained of oil. Leave it running and usse a few revs to see if it go's quiet when on load. The hard bit is getting it started lol

blueskies85

tell me about it mate, im going to change the plugs, hook it to my car on leads and then give it a go, to be honest mate it went quiet after it was warm and after i blipped the throttle so hope it is just teething problems. Thanks for all your help so far mate, im sure ill have some more questions when it refuses to start all day on friday lol.

juffer

Im still learning as im going along lol. There is always something to learn on a cvh. If it is over fueling then you can turn the fuel down on the metering unit with a 3mm alllen key. Be very carefull messing with fuel mixture as its advised a proffetional does it so the car isnt running too lean. From memory turn it anti-clockwise to lean and clockwise to richen. Try doing it quarter of a turn at a time. The screw is between the airfilter and the fuel head on the metering unit

Karlos G

iTrader: (4)

Just so you know, that is the IDLE mixture adjuster screw so it's quite safe to have a play around with as it will only adjust your fuelling at idle and not effect your on boost fuelling!

blueskies85

nice one karlos, i had a play around with it today but lost light so im getting up early tomorrow and will sort it out then, hopefully it will start so i can take it to a rolling road to have it all set up properley,
Yes according to haynes clockwise increases fuel and anti clockwise decreases fuel, its deffo overfuelling as it started on the first turn today then conked then it wouldnt start.
Just hope i can get it on the rollers tomorrow, im sure somewhere will have a slot, even more so i hope it starts tomorrow lol. Will let you know how i get on guys

Cheers

blueskies85

anyone in the oxford area free tomorrow to give me a hand starting this thing? i know its going to be a pain in the arse!

blueskies85

been reading about and have found this https://passionford.com/forum/general-car-related-discussion/144435-using-easy-start-to-start-an-rs-turbo.html gonna check it out as it could be the problem..... its such a shame as the car is immaculate but just wont bastard start lol

blueskies85

also done some more reading and apparently whenever a mod is carried out on any car, the ecu should be reset for the sensors to re adjust to the changes, was thinking that i could give it a try but wondered if there was any point. How do i reset the ecu?

juffer

Did you manage to get it going today or even to a rolling road?

blueskies85

yes mate got it started, last night i turned the idle mix screw to lean it up a bit but it was flooded so wouldnt start... it started this morning on the first turn of the key and starts every time now... its running on 3 cylinders but i know that is because number 1 ht lead connector is knackered so ill replace that tomorrow.
Noise is coming from head and it sounds like a diesel engine so i think that is the lifters, and the blue smoke is still there so im going to do the stem seals while im there.
You reckon my fault diagnosis on noise and smoke is right? Im so glad it starts now! As for the rolling road, i cant get on one till after christmas so ill just turn the boost way down and take it easy wherever i go... i dont need to drive much this christmas and the furthest journey will be to the rollers! am well chuffed!

ar3i

just wondered if anyone would have any ideas im aa little confused cant s2 to start was driving it died so i have chenged plugs rotor arm cap fuel filter its getting fuel to all bores got spark to all 4 timings correct got plenty of compresion checked all bost pipes no leaks ive tried pushing down the metering flap while turning it over any ideas????

kermitt

And the battery?