How can you tell a G's clutch is worn?
Discussion
Been reading this thread:
http://www.lambopower.com/forum/index.php?showtopi...
and it mentions a '40 mph in 6th and full throttle' test? Anyone care to expand on this for a mechanically inept wary purchasers pleeeease?
TIA
http://www.lambopower.com/forum/index.php?showtopi...
and it mentions a '40 mph in 6th and full throttle' test? Anyone care to expand on this for a mechanically inept wary purchasers pleeeease?
TIA
Couldn't read that link but...
Generally, if you choose a suitable gear where the engine is under load and the revs are around peak torque, then floor the throttle, the clutch will be under maximum load. If seriously worn, it will show signs of slipage under these conditions.
In a Gallardo, 4th gear at 4500rpm should do it.
Alternatively, on a flat and level surface, select 1st and gently release the clutch (without using throttle) and the ECU should bring the revs up to prevent stalling. On a new clutch, the revs should be around 1600rpm when the clutch is fully engaged. Roughly, for every 100rpm extra, the clutch is 20% worn. So, if the revs show well over 2000rpm as the clutch engages, there is likely to be some significant wear. In combination with the above 'load' test, you should be able to determine the state of the clutch reasonably accurately, though this is still a guide.
E-gear works on the same basis. Select 1st, gently depress the throttle (again, make sure the surface is flat and level) and the clutch will engage fully around 1600rpm. At a dealer, E-gear has the advantage of being interrogated by the techie's laptop.
As an aside. NEO's (E-gear) clutch had over 30,000 miles on it and only 1.6mm left on the plates when checked by Lambo Birmingham before our factory road trip. It managed the extra 2500 miles to Sant' Agata and back without the slightest sign of slipage. This on an 'E' cluch. So the system is robust enough, regardless of what some might think.
Hope this all helps, and good luck.
Generally, if you choose a suitable gear where the engine is under load and the revs are around peak torque, then floor the throttle, the clutch will be under maximum load. If seriously worn, it will show signs of slipage under these conditions.
In a Gallardo, 4th gear at 4500rpm should do it.
Alternatively, on a flat and level surface, select 1st and gently release the clutch (without using throttle) and the ECU should bring the revs up to prevent stalling. On a new clutch, the revs should be around 1600rpm when the clutch is fully engaged. Roughly, for every 100rpm extra, the clutch is 20% worn. So, if the revs show well over 2000rpm as the clutch engages, there is likely to be some significant wear. In combination with the above 'load' test, you should be able to determine the state of the clutch reasonably accurately, though this is still a guide.
E-gear works on the same basis. Select 1st, gently depress the throttle (again, make sure the surface is flat and level) and the clutch will engage fully around 1600rpm. At a dealer, E-gear has the advantage of being interrogated by the techie's laptop.
As an aside. NEO's (E-gear) clutch had over 30,000 miles on it and only 1.6mm left on the plates when checked by Lambo Birmingham before our factory road trip. It managed the extra 2500 miles to Sant' Agata and back without the slightest sign of slipage. This on an 'E' cluch. So the system is robust enough, regardless of what some might think.
Hope this all helps, and good luck.
Cheers for the info Mike. On that basis, my Gallardo 6k mile Type E clutch is still as good as new then.
I really do think its down to how people drive (read:abuse) these things...I know for a fact that I could get in my Gallardo and absolutely ruin the clutch before the end of the day, easy peasy! - it doesnt take a rocket scientist to suss out how to do it.
Likewise, it shouldnt take a rocket scientist to get their head around how to look after a clutch and get good mileage out of it!
I really do think its down to how people drive (read:abuse) these things...I know for a fact that I could get in my Gallardo and absolutely ruin the clutch before the end of the day, easy peasy! - it doesnt take a rocket scientist to suss out how to do it.
Likewise, it shouldnt take a rocket scientist to get their head around how to look after a clutch and get good mileage out of it!
Mosi said:
I really do think its down to how people drive (read:abuse) these things...I know for a fact that I could get in my Gallardo and absolutely ruin the clutch before the end of the day, easy peasy! - it doesnt take a rocket scientist to suss out how to do it.
Likewise, it shouldnt take a rocket scientist to get their head around how to look after a clutch and get good mileage out of it!
Agreed. A 500hp 4WD car is going to put a lot of strain on it's clutch, regardless of how well engineered it is. Which might explain why Porsche offer an autobox on the 911 Turbo, instead of a proper sequential manual. And why the SLR (which, I know, is RWD, but has colossal torque) is also an automatic.Likewise, it shouldnt take a rocket scientist to get their head around how to look after a clutch and get good mileage out of it!
E-gears generally seem to be more robust than manuals. Whether that's because they appeal to drivers with existing experience of these systems, and therefore, by implication, have got their 'traffic light drag races' out of their systems, who knows? Or maybe (back-peddling wildly) we're just pussies?!
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