Agriv8
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 posted on 3/9/06 at 07:47 PM |
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Rover v8 Clutch problems
So my clutch has been slipping for a while, not baddly but noticible if relly thraping it.
This afternoon though I would nip up to the Jetwash and clean all them hard to reach parts.
On the way back lost all drive luckilly 100 yards from.
So pushed her into the garage and thought lets have the bugger out did not think I would manage it on my own but 3 and a bit hours later she is
removed.
Nothing too obvious though I think the clutch plate started life yellow.
I suspect my release bearing has not been backing of the presure plate enough.
Anyone like to mention anything else from the photo ? I have never really had any problems with clutches apart from getting down to the rivets.
http://www.locostbuilders.co.uk/photos.php?action=showphoto&photo=clutch_fly_presure.jpg
sorry its so large.
Could somone tell me what the space between the fingers and the release bearing should be when the clutch pedal is released ( running a concentrick
release bearing ).
Flywheel skiming and balancing suspect this can be done at the local engine reconditioners ?
can you still get the friction linning re-fitted.
Does anyone know which is the least deep clutch for the rover v8 i.e. which one when mounted does the fingers stick out the least
Many thanks
Agriv8 or should that be agriv8out
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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moggybloke
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| posted on 3/9/06 at 08:04 PM |
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why go for a concentric bearin rather than the normal one
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02GF74
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| posted on 3/9/06 at 08:28 PM |
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not sure what you want me to say? all looks normal about from the red colour dust.
questions - you fitted the clutch plate the right way round? I ask since it sould be possible to fit this it 2 ways, only one way is right - unless
it is truly symmetrical. long time my friend replaced clutch on triumph spitfrie and couldnlt engage gear - had to whip the engine out to find the
clutch plate was put in the wrong way.
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Agriv8
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| posted on 3/9/06 at 09:55 PM |
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quote:
Originally posted by moggybloke
why go for a concentric bearin rather than the normal one
bmw gearbox to rover v8 the bellhousing covesion by john earls is designed to use concentric release bearing.
but notice when i bolt the geabox up that the release bearing starts to push on the fingers of the presure plate. surly this cant be right
regards
Agriv8
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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need4speed
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| posted on 4/9/06 at 08:22 AM |
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quote:
but notice when i bolt the geabox up that the release bearing starts to push on the fingers of the presure plate. surly this cant be right
I would say that is exactly whats causing your problem. no way is that right.
Dave
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Peteff
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| posted on 4/9/06 at 09:56 AM |
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questions - you fitted the clutch plate the right way round?
Has one side of the pressure plate got a nose on it? It should point away from the flywheel. What is the ring mark on the inside of the diaphragm
spring, is it making contact with the friction plate shock springs and holding the plate so it wears quicker.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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froggy
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| posted on 4/9/06 at 10:32 AM |
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perhaps you.ve overgeared it with that new diff does sound like the release bearing is the problem and ive used ap and borg covers and thwy are all
the same so looks like you may have to pull the input shaft sleeve out and machine into the collar to get the clearance you need
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roadboy
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| posted on 4/9/06 at 06:11 PM |
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Hi Ian,
If it 's not just a clearance problem could it be master cyl pushrod adjustment not letting the concentric cyl release.
I notice the inside of the fingers on the pressure plate have a mark as if they have been touching the clutch plate, it is difficult to tell from the
photo but this is not normal, its as if it is pushing the fingers too far.
HTH
regds
Ian
[Edited on 4/9/06 by roadboy]
Jude Performance Services
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wilkingj
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| posted on 4/9/06 at 08:13 PM |
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I agree about the release bearing, it may be holding the clutch partially operated thus slipping. Might be worth taking the slave cylinder out, or is
it a Cable clutch, in which case slacken off the adjustment.
Do you have to push the pedal far to get the clutch to disengage?. ie it operates the clutch at the top of bottom of the pedal travel.
On the pressure plate there should be the word FLYWHEEL to tell you which way round to put the firction plate. It could be why there are marks on the
inside of the spring fingers.
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
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Agriv8
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| posted on 4/9/06 at 08:59 PM |
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quote:
Originally posted by wilkingj
I agree about the release bearing, it may be holding the clutch partially operated thus slipping. Might be worth taking the slave cylinder out, or is
it a Cable clutch, in which case slacken off the adjustment.
Do you have to push the pedal far to get the clutch to disengage?. ie it operates the clutch at the top of bottom of the pedal travel.
On the pressure plate there should be the word FLYWHEEL to tell you which way round to put the firction plate. It could be why there are marks on the
inside of the spring fingers.
No it hydraulic and concentric so no cable adjustment.
Clutch always has been disengaged by slight movement on the pedal.
Yea I noticed the marks put that down to giving the cluch pedal full travel (rather than the usual 2cm of thravel it usually requires) when trying to
work out what was up - thinking that the release bearing may have stuck on somthing.
I have been firing a few emails off mainly to the supplier of my conversion bellhousing ( v8 to getrag bmw).
definatly looking at release bearing not backing off the presure plate enough i think need some time with the ruller in the garage and see if the gut
feelings are founded or not.
what do you think the distance between the fingers and the release bearing should be witht the clutch at rest.
regards agriv8
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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Peteff
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| posted on 4/9/06 at 11:02 PM |
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I would think with hydraulic operation that they will still be in contact but not under any pressure as the diaphragm will be returning the thrust
bearing when the pressure is released, not a spring at the lever end as in cable operation.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Agriv8
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| posted on 5/9/06 at 07:15 AM |
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quote:
Originally posted by Peteff
I would think with hydraulic operation that they will still be in contact but not under any pressure as the diaphragm will be returning the thrust
bearing when the pressure is released, not a spring at the lever end as in cable operation.
Thanks peter,
It seems obvious but contact is ok but any actual presure on the fingers and from the release bearing is bad.
Regards
Iain
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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roadboy
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| posted on 5/9/06 at 07:47 AM |
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Hi Ian,
It is usual for the thrust bearing to contact the fingers in the rest position, as you say it could be a bellhousing distance problem, hope you get it
sorted soon.
Best regds
Ian
Jude Performance Services
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Agriv8
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| posted on 6/9/06 at 09:59 PM |
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thanks Ian,
Cant see what would pull the release bearing of the presure plate. i suppose the only way it could if there is a spring in the concentric release
bearing to return it of the presure plate when the pedal is released.
Does anyone know how these concentric bearings work ist a Ap one which i belive is a copy of the saab item but with a larger bore size for the rather
large inpu shaft of my BMW box.
3 week lead time for a decent ap racing setup (pesure plate and clutch ). so looks like a little time to rebuild engine no 2
Regards
Iain
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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