Just a quick couple of photos to show the Borg Warner transfer box and the torque converter housing (to take the place of the existing flywheel housing) to mate the ZF auto box to the 200Tdi.
The Borg Warner unit has the same low ratio as any LT230, but has the 1.22 hi range ratio used on most RRCs and Discovery Is. Unlike the LT230 or the Series transfer box, it uses epicyclic reduction gears for low range, that set being locked for high range, and the output of that gear set is connected to the output shaft by a chain, so it is much quieter. It has a centre diff like the LT230, but that has a viscous coupling on the front output shaft to make is function as a limited slip diff, so there is no diff lock control.
The torque converter housing is much thinner than the manual flywheel housing. That is important for correct alignment of the torque converter. It’ll also help save a little space during the conversion – the ZF box is much longer than a Series box, so the engine and transmission will be a tight fit between the 2nd and 5th cross embers (the one with the steering relay and the one behind the transmission).
I am back in the UK with the family for a not so summery holiday. It's easy to forget how changeable the weather is here! I have been to check on the 109 and to give it a quick drive around the compound in all gear combinations to splash the oil … [Continue reading]
Well, there's no chance of me putting any of this into place for a very long time, but I have bought a Range Rover Classic Borg Warner transfer box and a Discovery 200Tdi ZF22 automatic gear box and associated parts for a retrofit to the 109. Both … [Continue reading]
I had a fleeting visit to the UK (I requested a specific flight pair that meant I flew my folks down to Dubai personally), and used the 24 hours in the UK for a few tasks, including checking on the house and the 109. The result is that both are … [Continue reading]
Well, it's now six months since I emigrated and I miss driving the 109. As good a car as the XC90 is, it doesn't have anywhere the character and enjoyment of a Series Land Rover or even a Defender. I write this sitting in a Bangkok restaurant; in … [Continue reading]