I've recently bought an '89 polo cl 1.3, it's got the MH engine with a Peirburg 2e3 carb. I've been trying to get rid of a judder when pulling out of junctions/parking etc. I've replaced the carb to inlet manifold flange (the original was split and leaking air) which seems to have solved the juddering problem when the engine is warm, however when the engine is cold I still get the judder. I've been doing a bit of reading online and it seems the general opinion on the Peirburg is that it's a pile of crap. I had an '88 cl before which I think had a Solex carb, I wanted to know if I could get a Solex as a direct replacement for the Peirburg? I know Weber used to make a direct replacement for the polo but they're a bit out of my budget.

Cheers.

a service kit for the Pierburg might rescue it (dellorto.co.uk)

or see

http://www.clubpolo.co.uk/forum/index.php?...t&p=2441265

judder when cold might be idle mixture wrong or ignition arcing to earth or choke flap not moving freely.

Edited 7 August, 201313 yr by dvderlm

When it is in good condition, free from vacuum leaks and set up correctly, the Pierburg 'milking machine' is in fact, a decent carburettor.

As already said, it may pay to check that the choke butterfly is closing when the engine is cold - Let it stand (preferably overnight) and remove the air cleaner cover, at that stage, you may find that the choke butterfly is still open, this is OK, but it should then close if you give ONE press on the accelerator pedal.

If it then fails to close, clean and lightly oil the mechanism before you attempt any adjustment of the actual choke. If you DO have to adjust it (there are items on here telling you how - I put one in myself the other day) mark the black plastic cap with a felt-tip pen before you move it, then only move a few degrees at at time to get the setting correct - if you 'over do it', the choke will have the opposite problem, namely, it won't go 'off', resulting in the mixture being far too rich and the engine spluttering to a standstill.

Regards.