Derek Uzzell Posted September 24, 2009 Share Posted September 24, 2009 Page 196 of MMM October 2009 carries two letters about difficulties removing rear wheels on coachbuilt Ford Transit-based motorhomes. Both letters relate to Transit Mk 6s (model-years 2000-2006 with 'curvy' cabs) and one also refers to a tyre-valve failure. I believe it's once again worth reminding owners of such vehicles that tyre-valve failures on Mk 6 Transits are far from unknown. The subject has been discussed at some length in the past, most recently (I think) on: http://www.outandaboutlive.co.uk/forums/forums/thread-view.asp?tid=16256&posts=7 It's sometimes suggested that Transits are cheap to repair, but this very much depends on the model of Transit and on what the repair entails. I recently paid over £700 (mostly charges for labour) to have the turbocharger on my 4-year old/18000 mile Hobby removed and cleaned internally. The Hobby's 2.0litre 125PS motor has a variable-geometry Garrett turbocharger and its 'speed control' mechanism had stuck in the low-boost position. Although the vehicle was perfectly drivable, it was clearly badly lacking in oomph. It turns out that this type of problem is well recognised, to the extent that cleaning products are marketed by several manufacturers that can be sprayed into the turbo to free up a seized mechanism and one UK company (Turbo Technics at Northampton) specialises in curing turbochargers with stuck speed controls. Variable-geometry turbochargers are widely used, not just on Transits. The same turbo fitted to my motor is employed on certain Ford and Jaguar cars. I'm fairly sure that Mk 7 FWD Transits with 2.2litre 130PS or 140PS motors have them, and it's possible that the 130PS 2.2litre motor fitted to the current Peugeot Boxer/Citroen Relay also has one. VW use them on some T5s. Apparently they are all vulnerable to stuck speed control mechanisms. Now that the Hobby's performance has been restored, the infuriating tendency for it to stall when starting from rest seems to have disappeared. Odd that, as the stalling characteristic was present from new and I can't think of any technical reason why a turbo-clean should make such a difference. Anyway, I'm not complaining... Link to comment Share on other sites More sharing options...
mike 202 Posted September 24, 2009 Share Posted September 24, 2009 As I have a Ford based motorhome I am gratefull for the info that you have supplied. Regards Mike Link to comment Share on other sites More sharing options...
Derek Uzzell Posted September 25, 2009 Author Share Posted September 25, 2009 Mike As your A-S Windsor is based on a Mk 7 chassis, it should be immune to the tyre-valve problem. There's some useful Mk 7-related Transit information on http://www.fordtransituk.co.uk/fordtransitdrivetrain.htm It seems from this that, of the 2.4litre motors, only the most powerful (137PS) version has a variable-geometry turbocharger. Link to comment Share on other sites More sharing options...
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