Maybe there are some landy heads out there who have crossed this bridge, I seem to be crossing it the long way (and expensive) and still haven't managed to sort out the problem being a rough idle once the motor has warmed up. Whats been done so far is as follows:
Cleaned out block, re-faced heads using composite head gasket and new studs. Shifted out the Stepper Motor, new rotor and dizzy cap,new plug leads and plugs (All original) replaced cold start sensor, oh yeah and last and by no means least did a complete rebuild on the auto box.
The plot continues, as recently I met one of the Landy Mecs from Bangkok who unfortunately only visits up here once a month and he mentioned that LR have a modification directive that deals with enlarging the port on the stepper motor, as a must for vehicles in this warm region.
Any one out there have any idea where I can find this report, or any other constructive comments would be greatly appreciated
Best to all from the jungle
Siam Mike