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Juddery/Lumpy!

T

turbonick84

New member
Joined
6 Feb 2010
Messages
2
Hey folks,

My 1985 3.2 Carrera has been garaged most of the winter. Now that i've had it out a few times i've noticed a couple of things.

Firstly, it seems to be taking an eternity to start up, it takes turning the key with a fistful of optimism but it does start!

Also at low revs it seems a bit jerky/lumpy then fine above 2000rpm, never used to be like that.

If anyone could share any experience/insight it would be hugely appreciated as i'm not super mechanically minded.

All the Best,
Nick
 
Hi Nick
Well I'm not very mechanically minded either but my 88 930 suffered the same problem; taking almost 10 seconds to start when cold and then running rough at first up to 2,000 rpms and after a week higher up the rev range. My indie fixed it by replacing the dizzy cap, rotor arm and ignition leads (the latter because they were split).
Mine had been sat around on and off for a long time, but not sure what the exact problem was, but the above parts are very cheap and apparently easy even for the novice to replace.
I'm sure someone more knowledgeable will be along soon.
Good luck

Ben
 
I dunt know anything about the motronic system but if runs well at higher rpm esp under load it's unlikley to be ignition as it has a much harder time under those conditions. I'd be looking at a fuel pressure or idle regulator problem assuming the engine is good condition.
 
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