new scirocco gt2 carb problem?

For all Carb and Injection engines, standard or modified plus non-standard engine transplants. Heads; Blocks; Cooling (including heater issues related to the cooling system); Mounts etc
Forum rules
Hints, tips and guides for repair and modification - the FAQ section on the main website is worth checking first for information relating to common faults and technical help. Useful posts and guides will be added to the FAQ http://www.sciroccoregister.co.uk/scirocco-faq
User avatar
sciroccof529bax
Posts: 116
Joined: Sat Jan 09, 2010 3:23 pm
fill in the right answer: 10
Location: wolverhampton /westmidlands

new scirocco gt2 carb problem?

Post by sciroccof529bax »

Hi I have got a gt2 that my gf brought me it wouldn't idle hardly drove the plastic pipe bits on the front were snapped off so who ever owned it )4 me piped the water pipes bk together changed the carb for one off my brothers old mk2 1.8 golf auto put water pipes bk on ... Changed the throttle linkage to the non auto one started and once it got warm ideled on it's own but car was missing changed plugs leads cap and arm got little bit smoother but it's still not right I really want to sort the problem out car is one owner from new and I really carnt wait to drive it lol :-D

Thanks for your help in advance


Nate
Posts: 4045
Joined: Thu Apr 02, 2009 10:37 pm
fill in the right answer: 10
Location: Cirencester / Swindon

Re: new scirocco gt2 carb problem?

Post by Nate »

Stale fuel?
loose timing belt?
Ign timing out?
Carb needs setting up?
Check earth from rocker cover to coil
plugs tapped correctly?


Image

Check out my photostream on Flickr
'69 bay, '79 bay, '74 bug, '78 GLS, '91 GT2, '10 SAAB 9-3
ianaudia4
Posts: 3800
Joined: Wed Apr 01, 2009 4:35 pm
fill in the right answer: 15
Location: Central London and Essex

Re: new scirocco gt2 carb problem?

Post by ianaudia4 »

Deleted your duplicate thread mate.

As Nate as stated, it could be a number of things. Check all the vacuum hoses are in good order and fitted!


1984 MK2 Havanna brown Storm
1989 MK2 Alpine white Scala injection
2006 Audi A4 3.0TDI quattro (the beast)
Nate
Posts: 4045
Joined: Thu Apr 02, 2009 10:37 pm
fill in the right answer: 10
Location: Cirencester / Swindon

Re: new scirocco gt2 carb problem?

Post by Nate »

ianaudia4 wrote:Deleted your duplicate thread mate.

As Nate as stated, it could be a number of things. Check all the vacuum hoses are in good order and fitted!
thanks dude. phone is doing weird things to the interweb this morning


Image

Check out my photostream on Flickr
'69 bay, '79 bay, '74 bug, '78 GLS, '91 GT2, '10 SAAB 9-3
User avatar
sciroccof529bax
Posts: 116
Joined: Sat Jan 09, 2010 3:23 pm
fill in the right answer: 10
Location: wolverhampton /westmidlands

Re: new scirocco gt2 carb problem?

Post by sciroccof529bax »

It seems better now the man I brought it off over tightend cam belt tensioner and belt was a tooth out seems betta now will c agen tomoz from cold..

Can any one tell me if this is supposed to click the part by my thumb wen not plugged in dosnt click

Image


User avatar
dozzum
Posts: 670
Joined: Tue May 26, 2009 11:29 pm
fill in the right answer: 10
Location: Benson, Oxfordshire

Re: new scirocco gt2 carb problem?

Post by dozzum »

Your only down the road from me if you need any help anytime.

Rich


User avatar
sciroccof529bax
Posts: 116
Joined: Sat Jan 09, 2010 3:23 pm
fill in the right answer: 10
Location: wolverhampton /westmidlands

Re: new scirocco gt2 carb problem?

Post by sciroccof529bax »

Cool cheers m8 gonna compression test it tomoz as it seems to miss

I feel I may have a bent/sticky valve


User avatar
dozzum
Posts: 670
Joined: Tue May 26, 2009 11:29 pm
fill in the right answer: 10
Location: Benson, Oxfordshire

Re: new scirocco gt2 carb problem?

Post by dozzum »

What does the inline fuel filter look like?

Has it been sat for a while with old fuel in?

Id recommend putting shell vpower in anyway. Means you can run more initial advance therefore get more power. Ive got an inductive pickup timing light with adjustable advance if its any help.

How have you set the fueling up?


Nate
Posts: 4045
Joined: Thu Apr 02, 2009 10:37 pm
fill in the right answer: 10
Location: Cirencester / Swindon

Re: new scirocco gt2 carb problem?

Post by Nate »

vacuum gauge is what you want.

good article on it here: clickety click click


Image

Check out my photostream on Flickr
'69 bay, '79 bay, '74 bug, '78 GLS, '91 GT2, '10 SAAB 9-3
User avatar
sciroccof529bax
Posts: 116
Joined: Sat Jan 09, 2010 3:23 pm
fill in the right answer: 10
Location: wolverhampton /westmidlands

Re: new scirocco gt2 carb problem?

Post by sciroccof529bax »

Thanks m8 that is actually shocking to see what you can find out wiv a vaccum gauge


User avatar
sciroccof529bax
Posts: 116
Joined: Sat Jan 09, 2010 3:23 pm
fill in the right answer: 10
Location: wolverhampton /westmidlands

Re: new scirocco gt2 carb problem?

Post by sciroccof529bax »

[quote=zum"]What does the inline fuel filter look like?

Has it been sat for a while with old fuel in?

Id recommend putting shell vpower in anyway. Means you can run more initial advance therefore get more power. Ive got an inductive pickup timing light with adjustable advance if its any help.

How have you set the fueling up?[/quote]

Hi mate ive not set the fuel up yet as the carb we fitted came off a good running 1.8... I've got a colour tune which I will put on an try set a bit better im moving house today to so can put some vpower in an drive it to new house.... I had a timing light on it yesterday but wen I get the timing spot on it cuts out ...

The fuel filter looks ok but as u sed the car has sat for about a year and I don't know how long the fuel has been init...

I'm gonna have another look wen I get chance will keep updated


User avatar
dozzum
Posts: 670
Joined: Tue May 26, 2009 11:29 pm
fill in the right answer: 10
Location: Benson, Oxfordshire

Re: new scirocco gt2 carb problem?

Post by dozzum »

Not certain on the carb engines but for the injection its 6 degrees of advance you need so you need a timing gun that lets you set advance.

Its normal for the revs to drop as you retard the ignition so its then a case of adjusting the idle screw.

Also the ones with inductive pickups are better as they dont disturb the ht lead connection.

As for colourtunes I wouldnt recommend that to be honest, you can usually do a pretty good job setting carbs up by ear but the timing needs to be right before you do the mixture.

Ive made up an exhaust gas analyser using a lambda sensor hooked up to a voltmeter, cost very little snd gives a good indication of fuel air mixture ypu can watch while driving around to ensurethe mix is good all through the rev range under different loads.


User avatar
bengould
Posts: 805
Joined: Fri Jul 09, 2010 1:25 pm
fill in the right answer: 10
Location: Renfrew.

Re: new scirocco gt2 carb problem?

Post by bengould »

dozzum wrote: Ive made up an exhaust gas analyser using a lambda sensor hooked up to a voltmeter, cost very little snd gives a good indication of fuel air mixture ypu can watch while driving around to ensure the mix is good all through the rev range under different loads.
That sounds interesting. I would like to know a bit more on how you have got that working.

Ben.


Image
User avatar
dozzum
Posts: 670
Joined: Tue May 26, 2009 11:29 pm
fill in the right answer: 10
Location: Benson, Oxfordshire

Re: new scirocco gt2 carb problem?

Post by dozzum »



User avatar
sciroccof529bax
Posts: 116
Joined: Sat Jan 09, 2010 3:23 pm
fill in the right answer: 10
Location: wolverhampton /westmidlands

Re: new scirocco gt2 carb problem?

Post by sciroccof529bax »

Gr8 news took it apart today carb off changed all vacuum pipes and noticed the one from break servo to inlet had a large tear in haha car works mint and it was a bargain at 450 cheers everyone for advice


Post Reply