Don't worry, I've heard this some many times.
My '71 GT - still original block - does the same and I have an almost new
clutch, which works fine.
Cheers,
Hans
----- Original Message -----
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
To: "CHRIS KOTTING" <ckotting@wideopenwest.com>; <mgs@autox.team.net>
Sent: Tuesday, May 25, 2004 4:51 PM
Subject: Re: RPM drop when clutch disengaged?
> This is frequently mentioned by owners of MGBs in North America, but it
> doesn't happen on either of mine and I have never noticed it on any of the
> other British cars I have had. Some say it is the drag of the clutch
> release bearing, some say it is worn crankshaft thrust washers. This last
> might be seen if you watch the crank pulley of a running engine while
> someone pushes and releases the clutch pedal. Suddenly starting after an
> oil change is odd. Did the normal idle revs (clutch pedal released) alter
> before and after the change as well? Does the rev drop occur gradually as
> the pedal is pushed down further, or all of a sudden near the end?
>
> PaulH.
>
> ----- Original Message -----
> From: "CHRIS KOTTING" <ckotting@wideopenwest.com>
> To: <mgs@autox.team.net>
> Sent: Tuesday, May 25, 2004 3:53 PM
> Subject: RPM drop when clutch disengaged?
>
>
> > The car is a 1958 MG ZB Magentte
> >
> > Since the oil change, we've noticed a significant drop in idle RPM when
> the
> > clutch pedal is depressed. The clutch travel and function seem
> unaffected.
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