E30 Zone

hi there lads me again well its another confused one from me now! i have a slight missfire on start up anyone got any idea wat it could be it happends when its cold warm or anything but only for like 10 seconds or so then its ok! ive checked everything and all is tight! etc i cant understand wat would cause this im changing the plugs tomz.
its recently been chipped but cant see if that would do this ive not had anything weird happen like this on any e30 ive had anyone ??
thanks ian.

no one?| bump

so no ones got any idea?

If it missfires for about 10 seconds and you have changed the plugs and checked everything under the bonnet then it looks like you are going to have to look a little deeper.
Not entirely sure how the fuel system works on injection cars, but, it could be a fuel supply problem.
I am no expert but suggest running the engine then shutting off, try restarting whilst leaving longer and longer intervals between stopping and reatarting. Is there a minimum time between stopping and restarting where the missfire does not occur?
The aim is to see if fuel is draining back down the system.
Its probably a long shot but if its nothing to do with fuel supply at least you can eliminate this problem.
Good luck

ECU fault maybe?

Could be related to your headgasket failure couldn't it? Poor running and a rough idle/misfire is likely to happen when you have a blown headgasket/shagged head. Not sure why it only does it for 10 seconds though.

cheers for that john yeh ive put too and too together just trying to get the inlet manifold off its being a right cunt though undone all the bolts clips etc any reason why its such a cunt even with a mallet it dont seem to want to move!! hmmmm confusing again this car !! anyone umm theres the big oil tube in the middle but i cant see no reason why it wont come off or even move a bit with that still in i normally get that moving when the inlets moving like!! help!any zoner near redditch wana come over lol

Don't even get me started on that oil pipe

Some seem to come off a dream, others, well don't

well update then!! today i done all my tests id set myself and decided the gasket was bolloxed well as much as i could tell from just running the car water pressure oil water mix etc............So i got the tools out stripped everything down and took the head off the beast! basicly the gaskets got blows all over it but nothing too deadly by the looks ive caught it just bfore it got real bad! theres was oily water and or oil everywhere lol real messy job loved getting stuck in now next step is to get a head gasket set , get the valves reseated decoked etc cleaned and stripped head , a skim cambelt & tensioner and water pump and fingers x should be ok to go back together!! ....Wat a day though was meant to have a interview at 10am but instead i was working on the sport as usual lol hahaha great e30s hey anyone know any real good reasonable head ppl ive got a few round here just get some variety right heres some pics anyway!!






ive got more pics will have to upload later image shack is sooo slow lol
anyway lads any opinions welcomed god ive got bak ache one tip lol dont slam your car on the cup kit bfore attempting removing the head it gives serious bachache lol [/img]

bump

Ian I can't really see from those pictures too well, but the gasket looks ok. Was there any burn marks between the cylinders or not, its just the gasket is now covered in oil, and i can't see jack shit. I changed a head gasket in a nasty vauxhall of some description not too long ago and you could see exactly where it was leaking from, plus the gasket started disintergrating when i removed it. From your pictures your gasket looks ok, but that is just from the pictures.

Sorry to say it, sure you haven't got a duff head? You should get somewhere to pressure check it anyway before refitting it.

Just re read your writing, so it looks like its loads of minor blows then, well in that case you may have caught it in time, before the head went pop bang wizz. I would still get it pressure tested just in case

plan of action jon m8 was get it pressure tested , then get the valves reseated and sorted , skim head new water pump , cam belt & tensioner , new head bolts , head gasket hopefully all will be good i will do u a better picture of the gasket tomz anyway keep the thread updated shouldnt be too much to get that done surely?lol

H35-IAN wrote:plan of action jon m8 was get it pressure tested , then get the valves reseated and sorted , skim head new water pump , cam belt & tensioner , new head bolts , head gasket hopefully all will be good i will do u a better picture of the gasket tomz anyway keep the thread updated shouldnt be too much to get that done surely?lol

Sounds like a good plan of action to me mate. I'm not sure what the going rate is for a pressure check, but if it needs a skim-(which i doubt) that will be under 50 notes. To be honest once you have it sorted it will be much nicer knowing that the headgasket won't blow, the cambelt won't snap etc etc. Should see it well into and beyond the 200k barrior.

Good luck, keep the thread updated with lots of piccys, perhaps you could do a guide

cheers for that jon im just on the phone to some head companys to see if theres anyhwhere up for doin it!!
i should think itll need a skim m8 to be honest always worth doin if the head gaskets goes plus it seems to make em a little quicker lol all good!! will post more pics up soon taa ian.