The 4.6 has a Hotwire injection system , for which the fuel chip (the ignition is by distributor) used was the same as the 3.9 , so no wonder it ran very weak, and overheated as a result.
This situation is relatively easy to rectify by using the "Tornado" chip, and you will immediately notice the difference , so don't let this put you off . It became such an obvious remedy that many 4.6s have already been chipped, so it may not need doing.
Just a few words of caution about your choice . The 4.6 develops a lot of torque (esp. when chipped) and this can make make it quite a handful in the wet when you have a live axle at the rear. The engine characteristics are such that it just develops more and more torque and is slightly reluctant to rev quickly, so the engine may not appear "lively"
Don't discount the 3.9 Hotwire long door cars, they are very good ( I do own one to be honest, but I hope I am being objective about it). They rev much more willingly and in many ways this is better suited to a sports car (the 4.6 was of course developed for the much heavier Range Rover)
The 3.9 Hotwire cars are also MUCH easier to sort than the later GEMS cars (called 4.0) where you need to chip both the ignition and the fuel, and there are a number of other issues with this much more complex system.
As ever when buying Morgans, don't get too hung up about mileage, it is better that the car is used regularly than stored for long periods. As ever buy on condition every time.
Last edited by MOG 615; 10/03/15 06:25 PM.
