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Model specific boards => Golf mk2 => Topic started by: vwjack on 18 April 2008, 15:23

Title: changing a auto choke carb to a manual one?
Post by: vwjack on 18 April 2008, 15:23
basicly how is it done cause the auto choke kinda works off the coolant dont it? and i dont know what to do about that?
Title: Re: changing a auto choke carb to a manual one?
Post by: Diamond Hell on 18 April 2008, 15:52
You're presumably on a Pierburg at the moment and you're looking to swap out to a Weber, yes?

Basically disconnect all the crap hanging off the Pierburg, block the coolant hoses that went into the Pierburg, throw the Pierburg away and bolt up the nice, cute far more effective little Weber, on the correct adapter plate. 

Get in the car and below the steering wheel, to the left there is a blank that you need to remove - there's a single fixing on the back of it to unscrew and it just pulls out of the dashboard.  Now pierce the grommet in the hole in the firewall ahead of this location and poke the choke cable through the hole.  Connect this up and away you go.
Title: Re: changing a auto choke carb to a manual one?
Post by: daniel-1986 on 18 April 2008, 16:05
does anybody know if the manual choke off the 1.05 litre mk1 golf is weber as my mate has got it spare after converting the engine to a 1.6 or 1.8 gti engine so i can fit it to my 1.3 mk2 golf
Title: Re: changing a auto choke carb to a manual one?
Post by: monzablue16v on 18 April 2008, 18:04
Should be just what you need all the choke is really is a cable so as it long as it connects up ot should be fine, and it will look original as well :)
Title: Re: changing a auto choke carb to a manual one?
Post by: vwjack on 18 April 2008, 21:29
thanks for the help Diamond Hell that was what i wanted to hear. what can i block them with, do they sell things like that.

Should be just what you need all the choke is really is a cable so as it long as it connects up ot should be fine, and it will look original as well :)

i would but aint webbers better and i have a webber waiting for me!
Title: Re: changing a auto choke carb to a manual one?
Post by: Khare on 18 April 2008, 22:11
i got a weber on my 1.6 driver and its such a good ride.
Title: Re: changing a auto choke carb to a manual one?
Post by: vwjack on 18 April 2008, 22:44
you change it your self?

jack
Title: Re: changing a auto choke carb to a manual one?
Post by: monzablue16v on 18 April 2008, 23:04
No, Weber would be better,
I thought you meant the choke cable!
Title: Re: changing a auto choke carb to a manual one?
Post by: vwjack on 18 April 2008, 23:51
yeah thats what i thought. nah the whole carb. man i was like in the middle of doing it today but i looked at it today and was like coolant hoses going to the choke wtf and left it!
Title: Re: changing a auto choke carb to a manual one?
Post by: Khare on 19 April 2008, 09:50
no ididnt change it myself, previous owner did it as he was a mercedes mechanic! Its an easy job though, jsut look for how to guides on the net. Type weber carb install in google.
Title: Re: changing a auto choke carb to a manual one?
Post by: vwjack on 19 April 2008, 12:25
oh right. yeah i was well up for it yesterday but i got confussed and went a played xbox  :nerd:
can i use a a bolt to block the coolant hose or is that noddgey?
Title: Re: changing a auto choke carb to a manual one?
Post by: Diamond Hell on 21 April 2008, 10:05
Yes, a bolt will do - did in mine for a couple of years and my mate's and numerous others.

People should bear in mind when swapping carbs that if the carb came off a different size motor to the one it's going in then it's extremely likely that the carb will need re-jetting, or you will get running problems.

The Weber install is replacing a very complicated POS with a very simple, gorgeous thing, so you will have numerous unnecessary connections hanging about, as well as the coolant hoses.  Fold them back on themselves and clip them out of the way, ensuring there are no bare wires left hanging about.  The only wire that needs to be connected around the back is the manifold heater, which is a big, fat, red cable.
Title: Re: changing a auto choke carb to a manual one?
Post by: mattneck(Beavis) on 21 April 2008, 11:02
The original weber setup for a 1.3 came from an italian car named an Autobianchi.

This was a 32DMTR

The 1.6 and 1.8 Golf had a 32/34 DMTL. But this is also jettable for the 1.3, and is twin choke instead of single.  :cool:

I have jetting sizes here.. and also some jet sizes incase of adding a cam or larger inlet.. But the standard ones should see you fit, I find mine elans out a little now with the GK manifold on the inlet, so may uprate my jets that slight bit and test it  :smiley:
Title: Re: changing a auto choke carb to a manual one?
Post by: rubjonny on 22 April 2008, 14:14
no you DONT block the coolant pipes to the carb, you join them together!  There is 1 connection from the inlet manifold, plus another on the metal coolant pipe on the side of the engine.  Join these together with a length of hose.
Title: Re: changing a auto choke carb to a manual one?
Post by: Diamond Hell on 23 April 2008, 15:20
Well that's one way, or you can block them off.

If one is better than the other then what's the reason?
Title: Re: changing a auto choke carb to a manual one?
Post by: rubjonny on 23 April 2008, 15:24
well i wouldnt want to block off the inlet section as it'll cause a pressure build up, with the o'rings normally being in a fragile state it wont take much for them to start leaking!
Title: Re: changing a auto choke carb to a manual one?
Post by: Diamond Hell on 23 April 2008, 17:19
Fair enough, although in my experience this has not been an issue.
Title: Re: changing a auto choke carb to a manual one?
Post by: rubjonny on 23 April 2008, 17:38
mine was leaking when the coolant channel was open, I hate to think what would have happened if I'd blocked off the coolant flow  :grin:
Title: Re: changing a auto choke carb to a manual one?
Post by: Dec on 23 April 2008, 17:47
I took my car to a VW garage yesterday and the guy said its far better to get the pierburg fixed than to buy a weber... he's been working on them for years and managed to fix my weber but as soon as i said it had been swapped and had a manual choke he got really annoyed.
Title: Re: changing a auto choke carb to a manual one?
Post by: rubjonny on 23 April 2008, 17:54
yeah personally I agree with him, the 2e2 is excellent once you get it working.  Thats why I wrote my FAQ  :cool:
Title: Re: changing a auto choke carb to a manual one?
Post by: vwjack on 23 April 2008, 18:18
shame the 2e3 is sh!t!
Title: Re: changing a auto choke carb to a manual one?
Post by: mattneck(Beavis) on 24 April 2008, 10:56
Pierburg, have actually deleted so many lines for the carbs they sued to do now, because they are a dying market.

Even basic things like vac pull downs and diaphraghms are long gone now..