Ever since I got my 1970 DS21BVH I have had difficulty in tuning it so that it runs as they should.
I have been following the factory workshop manual and/or the Brooklands one. I have used the car very little since buying it over a year ago, partly because it is a pain in traffic. It stalls every time one brakes to a stop, when the idling speed drops away (below what the manual requires) I have been using a basic tacho/dwell angle/points meter, which reads much lower than the dash tacho - eg over 1000rpm vs 800 on the external unit.
Using the accelerated idle adjuster screw the highest rpm I can achieve is around 800rpm whereas the book says around 900. At idle the rpm varies by50-100rpm and no choke is required even from cold.
I have replaced most of the ignition system and that seems to be in order.
I am left wondering if there is something wrong in the hydraulic unit which operates the accelerated idle system. I can't find any details of this unit in the manuals.
Any ideas will be gratefully received.
PS - one the local DS experts had a go at this problem without success.
Don
I have been following the factory workshop manual and/or the Brooklands one. I have used the car very little since buying it over a year ago, partly because it is a pain in traffic. It stalls every time one brakes to a stop, when the idling speed drops away (below what the manual requires) I have been using a basic tacho/dwell angle/points meter, which reads much lower than the dash tacho - eg over 1000rpm vs 800 on the external unit.
Using the accelerated idle adjuster screw the highest rpm I can achieve is around 800rpm whereas the book says around 900. At idle the rpm varies by50-100rpm and no choke is required even from cold.
I have replaced most of the ignition system and that seems to be in order.
I am left wondering if there is something wrong in the hydraulic unit which operates the accelerated idle system. I can't find any details of this unit in the manuals.
Any ideas will be gratefully received.
PS - one the local DS experts had a go at this problem without success.
Don