The speedo bounce problem was explained to me by a guy at a speedometer shop
as this: If you pull the center cable out and hold it loosely in both hands,
and roll it slowly, you will probably notice that it prefers to flop over in
one direction. This means that the cable has a slight bend in that
direction, possibly because it was coiled up too tightly in that direction
once during its life. So as the cable turns in the car, while making the
bend around the firewall up to the speedo, it will hang and then pop loose
very slightly each turn, causing the speedo to bounce. The suggested fix: a
new high quality cable.
Scott Pontius
'78 MGB with SD1 V8
Los Angeles
-----Original Message-----
From: Joseph Cianciotti <jmc987@earthlink.net>
To: mg mailing list <mgs@autox.team.net>
Date: Sunday, October 18, 1998 7:36 PM
Subject: My speedometer still bounces
>Today I disconnected the sheath from the back of the speedometer, pulled
>the cable out, cleaned it with mineral spirits, applied graphite powder
>liberally to its surface and reinstalled the cable. But the speedometer
>continues to bounce. Did I miss something? Any suggestions will be
>appreciated. Thanks.
>
>Joseph
>67 B Roadster
>
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