DMF lasting 20k???v - Page 2

MrDoodles · 30th April 2013, 20:15

Quote:

Originally Posted by Thomas

Moved to technical help forum.

I would go down to the garage and seeing it must be on a ramp with the box out ask them if you can have a look, get the mechanic to show you why he thinks it needs a DMF, if they are honest and reputable that wont be a problem.

Wot 'e said!

andy willi · 1st May 2013, 05:52

if there saying 9 teeth they don't know what there talking about did you have any strange noises on the clutch. dmf play is measured in mm search the luk website for info i think your getting ripped off

andy

mh007 · 1st May 2013, 10:12

As said, the 'allowable' tolerance is 25-30mm between the two masses.
A DMF is like a wheel within a wheel so to speak.
If you put a mark straight across the inner & outer rings using tippex or similar, then turn the outer as far as you can while holding the inner still, the distance between your two marks should be no more than 30mm.
You usually have tell-tale signs when a DMF is failing:
Rattling noises from the bell-housing area.
Clutch judder.
Complete loss of drive.

andysee · 2nd May 2013, 17:31

Well... current situation means I can't be without car, so I've went ahead and got the DMF replaced along with the slave and clutch as the AA agreed to cover the first £500.
Now it's done I've noticed a much smoother ride (along with the obvious light clutch). When changing lower gears (1-2) there used to be a pronounced rebound (not a clunk as such) in the engine which I thought was the lower engine mount. I replaced that with a mondeo mount but still got the rebound. With the new clutch etc, the rebound has dissapeared - would this have been a symptom of excess dmf play?

BUT

Although the clutch is really light and gear changes are perfect, there is some roughness at the end of the pedal travel (when depressing) and I'm sure I can hear it too - as though I'm hearing/feeling the mechanics of the plate releasing. This only occurs when driving and changing to a new gear (might only be when changing up but need to confirm). I don't get the feeling when depressing the clutch either stationary of without changing gear.

Is this something I should worry about or is it the clutch bedding in?

2nd May 2013, 17:31	#14
andysee Loves to post Rover 75 CDTi connoisseur Join Date: Jun 2009 Location: South Tyneside like Posts: 282 Thanks: 12 Thanked 15 Times in 8 Posts	Well... current situation means I can't be without car, so I've went ahead and got the DMF replaced along with the slave and clutch as the AA agreed to cover the first £500. Now it's done I've noticed a much smoother ride (along with the obvious light clutch). When changing lower gears (1-2) there used to be a pronounced rebound (not a clunk as such) in the engine which I thought was the lower engine mount. I replaced that with a mondeo mount but still got the rebound. With the new clutch etc, the rebound has dissapeared - would this have been a symptom of excess dmf play? BUT Although the clutch is really light and gear changes are perfect, there is some roughness at the end of the pedal travel (when depressing) and I'm sure I can hear it too - as though I'm hearing/feeling the mechanics of the plate releasing. This only occurs when driving and changing to a new gear (might only be when changing up but need to confirm). I don't get the feeling when depressing the clutch either stationary of without changing gear. Is this something I should worry about or is it the clutch bedding in? __________________ Done: Plenum spyhole, Screenwash cap shave, Mirror switches, Bonnet release, Bonnet switch, Parking sensors, PCV filter Inline stat, Rear seat release, alarm problem isolated, viton o-rings, mondeo lower engine mount, experimental handbrake compensator (still going strong), drum brakes adjusted, dogs installed in boot Todo: plumb under-bonnet clutch reservoir www.andyapps.co.uk [SIGPIC][/SIGPIC]

1st May 2013, 05:52	#12
andy willi I really should get out more....... PRE LAUNCH 75/ZT 190/XJ 550 Join Date: Jan 2007 Location: carcroft doncaster Posts: 2,866 Thanks: 101 Thanked 680 Times in 342 Posts	if there saying 9 teeth they don't know what there talking about did you have any strange noises on the clutch. dmf play is measured in mm search the luk website for info i think your getting ripped off andy

1st May 2013, 10:12	#13
mh007 This is my second home MG ZT260 SE, MG ZT190+, MG ZTT 160, R75 Conn SE 2.0, R75 Conn SE 2.5 X 3, R75 Club SE 1.8, P5B Coupe Join Date: Jul 2009 Location: Keynsham, Bristol Posts: 4,211 Thanks: 65 Thanked 635 Times in 499 Posts	As said, the 'allowable' tolerance is 25-30mm between the two masses. A DMF is like a wheel within a wheel so to speak. If you put a mark straight across the inner & outer rings using tippex or similar, then turn the outer as far as you can while holding the inner still, the distance between your two marks should be no more than 30mm. You usually have tell-tale signs when a DMF is failing: Rattling noises from the bell-housing area. Clutch judder. Complete loss of drive.