In article ,
Pete M wrote:
Autobox is a bit thumpy at first,

Every P6 auto I've come across has this set up wrong. The BW 35 relies on
just the one cable to set the gearchange speeds by throttle opening and to
do the kickdown. And if you have wear in the throttle linkage you loose
the kickdown, so most adjust the gearbox cable to get it back - thus
fooking up the relationship between the two at low throttle openings which
is crucial for smooth changes.

If you follow the shaft which is coupled to the actual carb back to the
bulkhead you'll find it pivots in a brass bush inserted into a grommet.
The grommet has likely collapsed. Hopefully the bush is still there.

Disconnect the gearbox cable, repair that shaft bearing, and adjust the
throttle so with pedal to metal the carbs are fully open. Then connect the
gearbox cable so it only just operates the kickdown valve at full
throttle. You can feel where the valve operates by pulling the cable.

With this done correctly you should have pretty smooth changes.

--
*Everyone has a photographic memory. Some don't have film *

Dave Plowman London SW
To e-mail, change noise into sound.