Part throttle lean off
Turbo Mini Forums

Having some probs with this pipe, I was told to block it off however when I do it doesn't run.
When I remove the pile it runs fine however squirts fuel out, is that rite?

Thanks for the help guys.

If its not blocked up it needs to connect to the nipple on the top of the carb, just in front of the dashpot.

Audi s4 b5 - 470bhp & 486ft lbs

On 30th Apr, 2012 Brett said:
yeah stick the bit in and give it a wobble

Kwl iv done that now, all I need to know now is if it's meant to have fuel passing through it?

Also why would blocking it off stop it running?

Cheers guys

if fuel is pissing out there, your float bowl needle jet is stuck open or your fuel pressure is way too high

Edited by Brett on 17th Jun, 2012.

Yes i moved to the darkside

Instagram @jdm_brett

Yes i moved to the darkside

Instagram @jdm_brett

Thanks for the help guys think iv got it sussed.

i hope you took the carb base plate off and cleaned it because... once it starts doing it only way to fix it for good is clean / replace it

Yes i moved to the darkside

Instagram @jdm_brett

I think it's all good I Turned the adjustment screw at the back of the carb.

There's only 1 more problem, it's the worst one " I don't know what I'm doing with su carbs"

Anyone on here live in or near hull?

Cheers

My friend the search button will find you all you need to know. With that pipe removed the car will idle fine but will cut out at the first hint of boost the carb is subjected to.
Fuel pressure at idle taken from a point between the carb and fuel pressure regulater should be 3-5psi

Own the day

Yeah did some searching but I wasn't sure if the carb was fooked. As far as i was aware the regulator was set fine on the car It came from however in hindsight I believe I may have a more powerful fuel pump.

Thanks for the help guys sorry for repeating something that's probly been covered a thousand times.

So what is the fuel pressure set to?

In the 13's at last!.. Just

not sure yet mates come round with a regulator with a gauge, the only problem is he forgot the gauge.

will have a reading in the next half hour or so.

You can get fuel pressure gauges off ebay for very little.

Audi s4 b5 - 470bhp & 486ft lbs

On 30th Apr, 2012 Brett said:
yeah stick the bit in and give it a wobble

Rite checked fuel pressure it was spot on however iv inspected the carb to find a horror. The float chamber was full to the top and the adjustment arm for the mixture screw missing the bit that moves up and the jet was jammed.

Time for a rebuild I think.

Edited by Jimmyful on 18th Jun, 2012.

hmm thats no good

Done now needs redoing lol

doesnt appear to be a needle valve present either or have you already removed that?

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

No haven't removed anything, I'm new to these carbs so looking in there was a bit forgein.

Will I have to source these parts from a donor carb or can I buy them new?

Thanks guys

PM turbophil, he will supply you a rebuild kit. There's a very good writeup on how to do it, it's not difficult.

Yeah I will, just wondered if the missing bits come in the rebuild kit?

Cheers