BLH wrote:
> I have just purchased a 1987 560SL with 94k original miles on it. It
> clearly has an engine problem & I would like some advice on how to
> diagnose it.
>
> The car, apparently, was running fine until one day, the previous owner
> started it up & it had a tapping sound & was running very roughly.
>
> This problem has nothing to do with the timing chain, rails, etc. as
> they were just recently replaced (about 2 years & 10k miles ago)
>
> Could this be a camshaft or rocker problem or ?
>
> Thanks in advance for any suggestions on how to proceed with this.
Engines often run rough if fuel/air is poor. Change fuel filter, check
fuel pump, relais, pressure and injectors, cold start regulation, vacuum
regulation lines and engine housing vacuum.
--
Roland Franzius
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