Auto carb

[tom1958]

Hi, I have a 1.8 GTL auto with 35k miles and the autochoke is iffy in that it seems to stick or race even when hot, sometimes up to 3k revs. It soon dies down but it idles at 1200 which in an auto is a bit fast. Also sometimes a bit hard to start.
Sooo, any known fixes? Is there a carb kit? ie' Weber that is a straight replacement?
I will sit and read through when I can get a bit more time.

Thanks very much.

Tom.

Edit** would this work ok? There is an auto version too.

http://www.fastroadcars.co.uk/shop/inde ... oductId=32

[scrumpyone]

That's the one Tom.

I think you'll find a lot of us have swapped over to a weber.

Someone on here will either be able to sell you one or point you in the right direction for a reasonably priced one.

[tom1958]

Thanks Dave, are they really that much better? Do you know if it does away with the water pipes too?

thanks.

[Old Mac Rocco]

Hi Tom this may help you decide.



The first two pics are a magazine article and the last one is the Weber instructions for doing the swop.
You will find a lot are converted as the Pooberg can be complicated if you have little mechanical knowledge (like me) whereas the weber is plain and simple, but at the end of the day it is a personal choice.
Maybe see you in the Leeds area someday as my sister stays there and we pop down occasionally.
Happy motoring.

[hiltow]

On a low mileage original car like that, there's probably nothing major wrong with the Pierburg. Whatever it is will probably be cheaper to fix that fitting a new Weber.

The problem is finding someone with the expertise who knows what their doing with the Pierburg thesedays, but they are out there - I can vouch for Northampton Motorsport in this respect:

www.northamptonmotorsport.com/

I'm up north, but it doesn't take that long to get there. The Pierburg is a superior carburettor to the Weber, but it more complex a beast, hence a lot of people don't have the expertise thesedays to fix them.

Is the car always revving at 1200 revs when warmed up? I can tell you that my Pierburg is 100% spot on, but in winter, when starting from cold, the revs do shoot up to 2k or so, then settle to about 1200 for a bit. Whilst this shouldn't ordinarily happen, the affect of cold temperatures on the bimetallic strip in the autochoke makes it contract more, hence resulting in more choke. In summer, this doesn't happen.

[tom1958]

Hi thanks for all the info.
I was a mechanic/auto electrician until I changed career in the early 80's and have never seen a Pierburg carb. I do have a lot of experience with weber's though as I had a Celica rally car in the late 70's. I fitted and tuned a brace of 40's to that.

Also used the 28/36 on Fords, plus I've fitted quite a few conversions to Singer Vogue's and Sunbeams etc'.
I will probably go for the weber on mine to do away with any future problems.
Many thanks for the input, I'll report on progress

[the edmundator]

If you think you're up to the challenge, Nate has a copy of the Pierburg manual. The Pierburg is a much better carb if it's working properly, the only problem is that age and neglect endow it with a mysterious multitude of idiosyncrasies that can be very challenging to overcome. For many the time, plus the expense of spare parts for a Pierburg, mean that the Weber conversion is both cost and time-efficient.