 | Home > Puma (Tdci) > Towing in what gear |
 
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| gilarion Member Since: 05 Dec 2013 Location: Wales Posts: 5110   
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Much better in 5th, 55-60 mph on motorways is the legal limit, any faster and you risk a £100 fine and three penalty points. For those who like Welsh Mountains and narrow boats have a look at my videos and photos at..
http://www.youtube.com/user/conwy1 |
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5th Sep 2023 3:06pm |
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| Ronniebee Member Since: 12 Oct 2015 Location: U.K. Posts: 31  
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It does feel more comfortable in 5th and just dropping the speed down a bit, I was just wondering if it saves the gearbox.
Some Australian forums suggest it does and don’t go into 6th. I was just a bit curious as to the thoughts of others on here. |
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5th Sep 2023 3:51pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 916  
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Never had a problem in running in 6th for motorway speeds whilst towing things heavier than a caravan. For a lot of A road 50mph work then 6th is still used and relying on the torque to keep things moving with the revs low.
Not murdered the gearbox yet. A local hay haulier who uses a Landy (well three) has blown up 3rd gear cluster lots' of times. Working the box hard all the time has shown that there's the weakness. (well apart from countless engines  )
6th gear doing 60mph is right in the happy torque band 2000 ish RPM Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest |
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5th Sep 2023 4:58pm |
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| TexasRover Member Since: 24 Nov 2022 Location: Paris Posts: 1052  
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If it's the output shaft of the gearbox into the transfer box it should not matter much if you are in 5th or 6th gear, no?
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5th Sep 2023 5:13pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17382 
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It's unlikely that you destroyed the output shaft, it will have destroyed itself and what gear you habitually use won't make any difference.
I never understand the "what gear should I be in" type of questions because the car tells you if it is in an unsuitable gear, just process the feedback you're getting through all your senses. Unless of course you have absolutely no mechanical sympathy. |
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5th Sep 2023 5:29pm |
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| Ronniebee Member Since: 12 Oct 2015 Location: U.K. Posts: 31
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Yeah we’ll just saying what I’ve read off the Aussie forum. Think I’ll stick with what they state thanks anyway.
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5th Sep 2023 6:07pm |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414  
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The MT82 gearbox is happiest in 5th, because that locks the input and the main shafts together for a ratio of 1, with least load on bearings.
Assuming constant torque by the engine, 6th will transmit least torque through the output shaft - least pressure on the splines. The number of revolutions on the output shaft is equal to the distance travelled (unless you shift into low). 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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5th Sep 2023 6:40pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3641 
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What Dinnu said 5th is best for the gearbox, as 6th is effectively an overdrive.
Having said that I generally use 6th to tow my van as 6th feels right at 55-60mph, and 5th feels too revvy, my engine really likes 1750-2000rpm. DEFENDER 90 TDCI XS, I hope everyone is well and your land rovers make you happy |
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5th Sep 2023 6:48pm |
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| TexasRover Member Since: 24 Nov 2022 Location: Paris Posts: 1052
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The torque on the output shaft is not a defined by the engine torque, but by the load (drag) of the vehicle (at constant speed). The engine toque will match the drag. I fact you can argue that in 6th gear any acceleration torque on the output shaft is less in 6th gear than in 5th gear. |
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6th Sep 2023 7:06am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414
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^^^ that is also correct.... just that if torque (multiplied by gear ratios less losses) are equal, then you have constant speed. If any one side of the torque is greater or less, then you either slow down or accelerate depending which is greater or lesser. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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6th Sep 2023 7:18am |
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| X4SKP Member Since: 29 Nov 2013 Location: Berkshire Posts: 2295 
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Hello Ronniebee
I,ve towed our caravan weighing around 1800kgs, the length of the UK, including many of the up and down ‘twisty bits’ in Wales and Scotland using both our 2.4 Puma’s. When ‘cruising’ I have just used what the engine feels happy with. 60mph in 6th at around 2k rpm is fine all day long… providing you maintain momentum, it doesn’t take much to need to reach for 5th. I noticed when we got our first 2.4, 10 years ago, and coming from a 300tdi that with 6 gears now available 2nd was needed quickly when setting off, for me not much further than the length of the vehicle, and more or less 3rd at 30, 4th at 40, 5th at 50 and 6th soon after. The engine feels strong but as with all engines it doesn’t like to be laboured… so being in tune with this is I think the key if you need a lower gear use it but personally I’d aim for the highest gear that the engine ‘tells’ you its happy in. Having a 6th gear, along with the modest sound deadening added by Land Rover over the years, does mean that holding a conversation whilst cruising is now possible…  SKIP
https://www.defender2.net/forum/topic83242.html |
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6th Sep 2023 9:26am |
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