![]() | Home > Puma TDCi > Clutch concentric cylinder |
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zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 1971 ![]() ![]() ![]() |
Most modern cars have gone to concentric ones these days. They give a lighter pedal effort and more control in theory, but they also mean cutting down on the number of parts at manufacture. There are also less potential points of failure, ie. no pivots to wear and throw the clutch out of adjustment or forks to break.
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ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 2708 ![]() ![]() ![]() |
On the whole they are reliable units,
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 8060 ![]() ![]() ![]() |
All down to production cost, the fewer parts are used, the cheaper the cost as a rule.
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blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 8060 ![]() ![]() ![]() |
Sadly that's not saying much on the Puma!
At that mileage I concur. |
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OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 132 ![]() ![]() ![]() |
Hi Guys and lovely to hear from you all again, take no notice of my rambling guys about conversion to external slave as in reality I know to convert the system would be possibly more unreliable than concentric, no doubt expensive to achieve and not worth the effort, I am just miffed at the timing of the failure as we were on the maiden trip out with our newer caravan looking forward to a few vodka's in the evening and a slap up breakfast each morning which would have been a treat from toast, and then seeing up the garage the very poor workmanship by a previous garage or other individuals at stripdown.
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zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 1971 ![]() ![]() ![]() |
I would also wonder if when the clutch plates fail early as they do, if some people cut costs and reuse the slave cylinder with the new clutch. |
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OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 132 ![]() ![]() ![]() |
Hi zsd-puma, well your correct in many ways about people and cutting costs, I worked in a good garage right from the day it opened and stayed there for many years and saw it flourish, I took retirement eventually as my knees packed up and my shoulder joints refused to lift heavy gearboxes and large 4x4 wheels any longer, so I know what your saying and have seen many many times people wanting to cut corners even though advised against it.
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OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 132 ![]() ![]() ![]() |
Hi Guys well eventually had my lovely girl back and the outcome was the failed concentric had contaminated the clutch fricton plate with hydraulic fluid, I am now smarting from the cost of the repairs which would make even a NASA accountant blush.
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zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 1971 ![]() ![]() ![]() |
I think the ball wearing and splitting is probably down to lack of grease mainly, but i've been looking at the slick shift and it would be nice to get rid of some of that slop in the gear change. |
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OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 132 ![]() ![]() ![]() |
Hi zsd-puma thank you for your reply, re: the nylon swivel point, it does appear to be a design fault in the design for the puma gear change, I would urge all if they get a sloppy gear stick the first thing to look at is the nylon swivel and its plastic cage which means removing the 4 screws and lifting out the stick, mine when I looked at it had split right down one side although it had plenty of grease, in addition to the nylon splitting it had also suffered quite some unusual wear pattern.
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zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 1971 ![]() ![]() ![]() |
the gearstick isn't even tight on the shaft.
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