Thread: New member seeking help with 3.9 Rover engine

I would start with the ignition amplifier, these are notorious for playing up especially when hot. It's common to swap in a Bosch unit that was also fitted in local cars like the magna and Holden's.
May it be worth getting something like an hei distributor from performance ignition which are in the nunawading area. Also a good set of ignition leads like magnacore.

The 3.9 in a Land Rover was fuel injected, is that the case in your application?

Originally Posted by V8Ian

The 3.9 in a Land Rover was fuel injected, is that the case in your application?

Yes, it is FI with a 14CUX ECU

Originally Posted by loanrangie

I would start with the ignition amplifier, these are notorious for playing up especially when hot. It's common to swap in a Bosch unit that was also fitted in local cars like the magna and Holden's.
May it be worth getting something like an hei distributor from performance ignition which are in the nunawading area. Also a good set of ignition leads like magnacore.

Great advice. I recently put in a new Lucas ignition amplifier and new leads I sourced from John Craddock in the UK. I will reach out to perfomance ignition and see if they can check the ignition system is working correctly.

Originally Posted by sinkman

Great advice. I recently put in a new Lucas ignition amplifier and new leads I sourced from John Craddock in the UK. I will reach out to perfomance ignition and see if they can check the ignition system is working correctly.

hi mate they are really good sorted my distributor out was magnetic pick up inside dizzy same symptons as you also ditch the lucas amplifier they are terible get abosch plenty on forum how to install had no end of issues with lucas and magnetic pick up runs like a dream now more power and stable idle even with 360000 kms send dizzy to them

check the amp, the coil and the temp sensor for the ECU.

Fellow forum members, I just wanted to shout-out for all the help and suggestions getting my TVR Chimaera running properly. I took the car to Greg at AMV Land Rover in Heatherdale and he sorted it! It is now running like it never has in my 10 months of ownership. He found the induction leak, fixed the timing it was set at +24 degrees at idle, MAF was set incorrectly and was very rich and the tune resistor was malfunctioning. Lastly, the ignition leads on 2 & 4 were the wrong way around! They set the base idle again and the car is running like a steam train did 180k kms today and getting 9l/100. (It was 22l/100).