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Car Forum / UK Car Forums / Classic Cars (UK group) / November 2009Advisability of driving Borg Warner without prop?
I've got a RR 200Tdi with a BW xfer box, the front prop is ducked (specifically it's in about 4 pieces, two of which are on the road somewhere). I know the LT230 shouldn't be driven far/fast with the difflock on, what about the BW box? is it likely to be affected in any way? Alex Alex <nospam.alex@cbmsys.co.uk> gurgled happily, sounding much like they were saying: > I've got a RR 200Tdi with a BW xfer box, the front prop is ducked > (specifically it's in about 4 pieces, two of which are on the road > somewhere). I know the LT230 shouldn't be driven far/fast with the > difflock on, what about the BW box? is it likely to be affected in any > way? Problem with using any 4x4 on the road with the centre diff locked is that you'll get "wind-up" from slight differences in the rate of rotation of the front and rear prop-shafts, due to slight differences in tyres sizes, and from slight differences in distance travelled due to the different lines the front and rear take on corners. With the front prop-shaft removed, that won't be a problem. > I've got a RR 200Tdi with a BW xfer box, the front prop is ducked > (specifically it's in about 4 pieces, two of which are on the road > somewhere). I know the LT230 shouldn't be driven far/fast with the > difflock on, what about the BW box? is it likely to be affected in any > way? Ah bugger, I've got a spare front prop but it's for the earlier transfer box.  SignaturePete M - OMF#9 '62 Rover P4 100 '61 Rover P5 3 litre '78 Escort 1300 Sport '99 Audi A6 V6 Quattro Avant "It's an Alfa, it will go wrong, it will piss you off, why should your Alfa experience be different from everyone else's. Now get back out there and swear at it before something else breaks." > I've got a RR 200Tdi with a BW xfer box, the front prop is ducked > (specifically it's in about 4 pieces, two of which are on the road [quoted text clipped - 3 lines] > > Alex DON'T DO IT! Seriously, it's ok with an LT230 transfer box to run with it locked and no front prop (notwithstanding the "strange" handling characteristics), but not a Borg-Warner, due to the internal viscous coupling. As there will be no resistance to the front output shaft rotating faster than the rear, the torque of the engine will overcome the viscous and essentially fry it in a very short time. Badger. |
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