Misfire and pissing fuel........... related?? NOW SORTED!!!!!
Turbo Mini Forums

Hi
Just fitted the new turbo which actually provides boost, so thats a positive, I'm happy :)

Unfortunately there is a load of fuel pissing from the float chamber of the carb. So i'm unhappy:(

Also the engine does not seem to rev freely like it did before boost, its misfiring and spits back through carb.

Could the fuel leak and misfire be related? Obviously next thing is to rebuild the carb. But will this solve the misfire?

I have a video on here " MISFIRE"
http://www.turbominis.co.uk/index.php?p=15

cheers
Chris

Edited by chappers on 14th Aug, 2007.

998 turbo in progress.... DONE..........KNACKERED LOL

Might be the large 'O' ring on the float chamber cover or choke seal. Just done mine! :)

Right oh, i'll look at that tomo.

Did you get a rebuild kit?

Avonbar do a rebuild kit for £30odd
and a overhaul kit for £45

Don't know which one to go for?

998 turbo in progress.... DONE..........KNACKERED LOL

www.burlen.co.uk is who I used.

cheers matey

which kit did you get, there is a rebuild kit for £39 or a service kit for £30??

cheers again

998 turbo in progress.... DONE..........KNACKERED LOL

Hi,
Go for the full kit, do it once
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary

As Bat says...go the full hog. Peace of mind then. :)

Heres the rebuild link, very handy.

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=2878

Edited by Jason G on 11th Aug, 2007.

could be as simple as needle valve not seating properly....

But if the float bowl os flooding like that, something needs sorted asap !!!

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

yeah i have ordered the kit. But for time being i had a test with a N/A carb, and it still misfires.
Suggesting it's the ignition. Then i remebered i welded the weights up in the dizzy, as i'd seen something on here about it. you dont need any advance apparently. Well i think this is to blame for the misfire so i'm going to strip and grind off the welds tomo night after the Tatton Park VW show.

Hopefully this will solve the problem.

Cheers for the help

998 turbo in progress.... DONE..........KNACKERED LOL

well i'm getting pretty fed up now.
Just spent ages stripping the dizzy to grind off the welds (and they we well on there aswell) and it still misfires :(

I'm stumped, coz it still misfires when the turbo feed is removed. And it did not misfire the other day before fitting the new turbo.

I'll just have to shell out for a new coil, leads, plugs, cap and rotor arm, just keep tracing the fault i suppose.

998 turbo in progress.... DONE..........KNACKERED LOL

Is it the same in every gear ?

Has there been any other changes to the car recently ?

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

not had it out of first gear yet, still in a project stage.

no changes other than turbo and welding dizzy up (which is now freed up)

I have bought new plugs, cap, rotor, leads and borrowed a couple of coils to try tonight.

I'm thinking i'll change one thing at a time and check, that way i got an idea for future reference, and i'll report back on here tonight.

Cheers
Chris

998 turbo in progress.... DONE..........KNACKERED LOL

sort the carb float needle valve firstley and then move on

then fit all the other parts you have acuired
go for .... search for the Turbo Dave
T PEICE TRICK and implement that

Yesss
Thanks for the help gents.

I went through the ignition system replacing one thing at a time, and its sorted!

In the end it tured out to be the last thing i checked, the TIMING!! LOL

oh well at least there is all new ignition stuff on there.

Turns out the ignition was almost 90° too advanced!! but i'm RETARDED!!!

so it runs very nice now.

just get that carb rebuilt as BENROSS says. and get it on the road. bit of a dodgey road test

cheers once again
chris

998 turbo in progress.... DONE..........KNACKERED LOL

Do a search for how to rebuild the carb.

cheers Tom i found your most excellent guide in the How to section and its printed off.

Cheers mate

998 turbo in progress.... DONE..........KNACKERED LOL