w123 280 cold start difficulties

[Levismerc]

Hi there,

My w123 280 is having a little trouble starting from cold. It cranks over fine and then fires and runs for a few seconds at a very slow idle. It then dies and has to be cranked for quite a while before it eventually starts and then usually idles really slowly and lumpily and then gradually builds the revs.

The car starts fine from warmand runs very well once the engine has warmed through a bit.

The warm up regulator was replaced about a year ago and the fuel pump and filter are only a couple of months old.

Any ideas before I start investigating myself?

Thanks

Levi

 

[iscaboy]

fuel starvation / draining back to the tank?

 

[jaymanek]

idle valve?

ring mark cosovich, he will know straight away.

 

[Levismerc]

Looks like I'll be needing another warm up regulator - anybody got one??

I only put one on about a year ago but it was a used one so it was likely to go at some stage.

Old cars eh? Who'd have 'em? (Only joking - I love it really)