Clutches

G Cherokee replied on 14/12/2017 20:57

Posted on 14/12/2017 20:57

I'm changing my car in the new year and although I would prefer an auto I'm not adverse to getting a manual gearbox.

Can you good folk give me some idea of their tow car performance with a manual box, preferably comments on clutch wear and what sort of mileage did you achieve before a new clutch was fitted??

This is important to me as it will determine the car I end up purchasing.

Thanks guys

lornalou1 replied on 15/12/2017 11:32

Posted on 15/12/2017 09:12 by EmilysDad

Before the days of electrickery, if you wanted a variable speed output in industry, a CVT/rubber band drive was usually the answer. They're horrible things which is why they've been replaced with electronic inverter control. 

Posted on 15/12/2017 11:32

you always mention "the rubber belt" when talking about CVT and you are wrong as they are a linked metal belt and on my car gives the smoothes drive i have ever had. milothedog if you believe anything the dealer tells you the you would believe the sun is cold. they are salesmen and if asked a technical question wouldn't know the answer. like Lutz i pull a 1800kg van with my 9 speed CVT jeep cherokee and never a cough/twich/judder or anyting just a smooth ride towing and solo. i worked on freelanders for a few years and would never own one but each to there own as they say. everyone will defend the car they own, as for clutches, manufacturers will only warranty the manual clutch for 6 months from new.

EmilysDad replied on 15/12/2017 11:43

Posted on 15/12/2017 10:35 by ocsid

Or in more critical application the very reliable Kopp Variators we extensively used.

However, towing with a "car" [sub 3500kg GVM] then for me its a torque converter in a vehicle getting close to that GVM, every time over a manual clutch or any mechanically clutched auto.

Posted on 15/12/2017 11:43

I've come across something like that ..... when there's a lump missing from the large drive disc, you can hear it from the other side of the factory. Usually as a result from what Metheven said.

Metheven replied on 15/12/2017 11:44

Posted on 15/12/2017 11:44

CVT is rubbish, I test drove a Subaru Forester and it was a heap of manure, and as soon as you pressed the throttle it whined at high revs until the speed caught up with the engine. Obviously it was fairly seamless in the ratios but I couldn't hack the constant high revs unless you were dawdling.

Torque converter is the only proper auto and a manual with clutch is not for towing unless treated with kid gloves.

Milothedog replied on 15/12/2017 11:52

Posted on 15/12/2017 11:32 by lornalou1

you always mention "the rubber belt" when talking about CVT and you are wrong as they are a linked metal belt and on my car gives the smoothes drive i have ever had. milothedog if you believe anything the dealer tells you the you would believe the sun is cold. they are salesmen and if asked a technical question wouldn't know the answer. like Lutz i pull a 1800kg van with my 9 speed CVT jeep cherokee and never a cough/twich/judder or anyting just a smooth ride towing and solo. i worked on freelanders for a few years and would never own one but each to there own as they say. everyone will defend the car they own, as for clutches, manufacturers will only warranty the manual clutch for 6 months from new.

Posted on 15/12/2017 11:52

Just sharing a part of a conversation cool. Like myself, said person is ex motor trade and not easily taken in. Like you say, each to their ownsmile 

 

EmilysDad replied on 15/12/2017 12:02

Posted on 15/12/2017 11:32 by lornalou1

you always mention "the rubber belt" when talking about CVT and you are wrong as they are a linked metal belt and on my car gives the smoothes drive i have ever had. milothedog if you believe anything the dealer tells you the you would believe the sun is cold. they are salesmen and if asked a technical question wouldn't know the answer. like Lutz i pull a 1800kg van with my 9 speed CVT jeep cherokee and never a cough/twich/judder or anyting just a smooth ride towing and solo. i worked on freelanders for a few years and would never own one but each to there own as they say. everyone will defend the car they own, as for clutches, manufacturers will only warranty the manual clutch for 6 months from new.

Posted on 15/12/2017 12:02

Whether its a rubber or metal belt is immaterial  ..... the drive is the same ..... one cone effectively gets bigger as t'other gets smaller. 

Your CVT has been discussed before  .... if its a cvt, then either the 9 speeds are artificial, or it's not a cvt.

Metheven replied on 15/12/2017 12:31

Posted on 15/12/2017 12:31

Are we talking of the Cherokees 9 speed problematic ZF gearbox or a CVT?

Is there a link to the Cherokees CVT.

Spriddler replied on 15/12/2017 12:47

Posted on 15/12/2017 07:41 by ocsid

Also, there are "autos" and there are "autos" with different technology of clutches used.

For anyone with a hangup with clutches, then a correctly specified and cooled torque converter auto is IMO the way to go.

 

Posted on 15/12/2017 12:47

Agreed. I had an automatic Vauxhall Zafira for years with a beautiful torque converter transmission. Not for towing, but 3 months ago I bought a one year old Citroen Cactus with an automated manual gearbox. It was so awful that I changed it after 9 weeks. The automated manual had just two buttons on the centre console; D(rive) and R(everse). It took about 3 seconds to change from one gear to another. Not much slower than a manual maybe BUT with a manual the driver decides which gear to start off with and when to change gear. With the automated manual I'd be pulling away into a gap, say on a busy roundabout, when at 12mph (just as I'm in the middle of the busy traffic) the speed would drop as it changed from 1st into 2nd gear, prompting all manner of gestures from the drivers closing up fast behind me.

I changed it for a 2017 Skoda Fabia Estate which has the same base and running gear as the Audi A3 and VW Golf. It has a sublime 7 speed DSG (dual clutch) transmission where (in brief) the next gear (up or down) is pre-selected and engaged simultaneously when the previous gear is disconnected. Drive is maintained throughout the sequence and the only way I know that it has changed gear is by looking at the gear indicator on the dashboard or the rev counter. It also has 'Sport' mode and 'Tiptronic' features.

I'm told that torque converter transmissions are uncommon nowadays as they do not help to deliver the fuel economy demanded by today's competitive market. 

Tinwheeler replied on 15/12/2017 13:55

Posted on 15/12/2017 11:44 by Metheven

CVT is rubbish, I test drove a Subaru Forester and it was a heap of manure, and as soon as you pressed the throttle it whined at high revs until the speed caught up with the engine. Obviously it was fairly seamless in the ratios but I couldn't hack the constant high revs unless you were dawdling.

Torque converter is the only proper auto and a manual with clutch is not for towing unless treated with kid gloves.

Posted on 15/12/2017 13:55

That surprises me. How old was the one you drove, Metheven? I owned a 2016 (2017MY) diesel Forester CVT and it was the smoothest auto I’ve driven with no whining and no high revving. It was better for ordinary driving than a TC or dual clutch auto.

It wasn’t used for towing though and I’d agree the TC is the 'proper job'. 

Metheven replied on 15/12/2017 15:12

Posted on 15/12/2017 15:12

It was this year TW, looking to change the car and already dismissed the Discovery Sport so went into the Subaru dealership. Whether it was a one off or not I don't know, but the demonstrator was terrible and put me off immediately. This was obviously solo and haven't a clue if the CVT was any good for towing.

If a dealership wants to sell then it must present the very best to get a sale, as I went away with the thought that every one was like that.

Cornersteady replied on 15/12/2017 15:31

Posted on 15/12/2017 15:31

Our last tow car, a seat Alhambra did 155000 miles (yes) and was 12 years old and had it's original clutch when it went off to the be scrapped (or so we thought as I noticed it's been re MOT and taxed) 

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