Technical DMF ?
- Thread starter mikegml
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Technical DMF ?
Depends who you use. I get the Fiat workshop in Royston to do my clutches as there can be issues if attempted by those without experience. My TwinAir Cross had a clutch, DMF, bearing, clutch fork and slave cylinder and the bill came to £1280. £660 of that was labour. The clutch and DMF alone will set you back £550-650 depending on make.
Not cheap, unfortunately, plus the TwinAir seems to have a habit of eating them. Although lifetime depends a lot of how you drive.
Not cheap, unfortunately, plus the TwinAir seems to have a habit of eating them. Although lifetime depends a lot of how you drive.
Unfortunately, the rule of thumb is always change the DMF when changing the clutch. And vice versa...
I wasn't sure what it was. I googled the rattling and vibration when changing gear especially in 2nd, and when accelerating and got a bunch of results exactly like the ones here on the DMF. Reading them all described it exactly like what I was getting.
yes, bit like that. Sounds like it has a prop shaft and it's rattling. if you hold the gear lever as you change gear it feels as though it's in direct contact with the rotating cogs. if you drive with mild acceleration and change gear lightly it's still noticable but only just.
euroben
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Yes sounds exactly like mine. Only I just had my clutch and DMF changed. I think it’s a faulty DMF or it hasn’t been fitted correctly if that’s possible. Interesting that you came to DMF as your problem with similar issues. Confirms for me that I am probably right about mine.
To widen the DMF issue slightly more, has anyone noticed cars with a suspect DMF issue having clutch master cylinder failure?
The reason I pose this query is daughters 2010 VW Golf 1.6 diesel has had a pattern clutch master cylinder (good quality) and now a slave also for pedal creeping, loss of pressure at a junction waiting for traffic along with pedal sticking down etc.
Although retired after over 55 years in the trade I am always interested to chat with other mechanics and the DMF point was raised that the vibration of the DMF with clutch held down transmitted through to the seals in the master cylinder causing early failure as most are what I feel is inferior plastic cylinders these day.
The other point on the Golf he mentioned is that VW themselves are aware of the problem and supply their clutch master cylinders with the whole pedal assembly as a modified/improved unit.
Any comments?
The reason I pose this query is daughters 2010 VW Golf 1.6 diesel has had a pattern clutch master cylinder (good quality) and now a slave also for pedal creeping, loss of pressure at a junction waiting for traffic along with pedal sticking down etc.
Although retired after over 55 years in the trade I am always interested to chat with other mechanics and the DMF point was raised that the vibration of the DMF with clutch held down transmitted through to the seals in the master cylinder causing early failure as most are what I feel is inferior plastic cylinders these day.
The other point on the Golf he mentioned is that VW themselves are aware of the problem and supply their clutch master cylinders with the whole pedal assembly as a modified/improved unit.
Any comments?
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Not really sure about that - maybe if the Golf has a concentric slave - the Pandas don't to my knowledge. The DMF damps rotary forces so wouldn't really expect any additional loads in the axial direction??To widen the DMF issue slightly more, has anyone noticed cars with a suspect DMF issue having clutch master cylinder failure?
The reason I pose this query is daughters 2010 VW Golf 1.6 diesel has had a pattern clutch master cylinder (good quality) and now a slave also for pedal creeping, loss of pressure at a junction waiting for traffic along with pedal sticking down etc.
Although retired after over 55 years in the trade I am always interested to chat with other mechanics and the DMF point was raised that the vibration of the DMF with clutch held down transmitted through to the seals in the master cylinder causing early failure as most are what I feel is inferior plastic cylinders these day.
The other point on the Golf he mentioned is that VW themselves are aware of the problem and supply their clutch master cylinders with the whole pedal assembly as a modified/improved unit.
Any comments?
That model Golf has an external slave cylinder, however to take it to it's logical conclusion one of the symptoms of a failing DPF is a vibration under your foot when touching the clutch pedal, so the theory is that the vibratory load is transmitted back to the seals in the clutch master cylinder etc.
I have no written conclusive report to this effect, however I have noticed some cars when road testing had a vibration under your foot when lightly touching the clutch pedal.
I retired from the motortrade before DMF's became widely enough used to have major errors being reported back to me.
I appreciate that DMF's damp rotary forces, but one of the tests of a DMF flywheel is rocking movement as well as the more common rotary play.
