The Triumph Dolomite Club - Discussion Forum

Hi and welcome.

Simplest cause of lurching is idle speed too high. Stalling is likely just poor state of tune. Sounds to me like it needs a good service and tune up and someone has wound up the idle to keep it running.

Give it a service and tune up. Tune it to idle smoothly at the idle speed specified for a manual car, if you tune it at the higher setting for automatics you will hide poor running. Wind the idle up to the correct setting for an auto once it is running nicely.

Tinweevil

ojsmith wrote:when coming to a halt in D or R revs drop too low and engine may stall. idling speed in N or P are fine

Following on from Tin's response, how low is too low?

Our 1500auto was doing this so i twisted it down to about 650/750 rpm on warm tickover,it now only slighty does it now and then.

experience with 1850 autos...mostly owned by Rob Grainger...

is that they work best at 750 rpm. The heavier flywheel and torque converter means they will take the slower idle speed smoothly that seems to make manual 1850's a bit rough below 850.

FWIW sprints with lightned flywheels generally need 1000 rpm.

Jonners