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  #1  
Old 08-05-2011, 07:47 PM
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New Clutch Engages Low on Pedal Swing

So, wasn't really sure how worn my clutch was, but I thought it'd be prudent to replace it before school starts again. The old clutch engaged pretty far up on the pedal swing (part of the reason I thought it might go soon), but the new clutch engages almost immediately after I start letting the pedal go. I thought it'd be lower, but this seems far too low.

My only idea is to try bleeding the clutch, in case maybe there's air in there from the last time I replaced the slave. I did get the right throw-out bearing, so that's not it. I'm stumped.

On a less dire note, there also seems to be this squealing noise since I drove the car after I finished the clutch. Don't know if it's related or where it's coming from. It goes away at speed.

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  #2  
Old 08-05-2011, 09:39 PM
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Isn't there an eccentric bolt on the master pushrod?
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  #3  
Old 08-05-2011, 09:54 PM
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I've not seen the mechanics of your clutch, but unless it uses an annular-ring slave cylinder (goes around the input shaft), there will be an adjustable fulcrum for the release fork. You need to adjust that.
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Old 08-05-2011, 11:21 PM
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no eccentric bolt and not adjustable fulcrum. I been throught the whole clutch system more than once and not seen anything adjustable.
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  #5  
Old 08-05-2011, 11:40 PM
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I wouldn't be shocked to find out that this is the case, but I have never seen a clutch without an adjustable fulcrum, unless it had an annular slave cylinder.

You know it's an annular slave cylinder when the transmission has to come out to change it.
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Old 08-06-2011, 12:55 AM
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Iam not sure what an Annular Slave Cylinder is, and I know the Slave is not on the input shaft.

The Slave Cylinder is bolted to the side of the Transmission.

There is an eccentric bolt on the clutch MC rod where it bolts to the clutch peddle. the eccentric is like a bushing the bolt goes through. the bushing is off center.

Charlie
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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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  #7  
Old 08-06-2011, 01:02 AM
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Here's a picture of one:

http://www.racekit.co.za/page21.htm

It goes around the input shaft, and presses on the pressure plate fingers with no linkage. Really nice setup, if hard to service.
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  #8  
Old 08-06-2011, 04:00 AM
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The low engagement is typical if you have surfaced the flywheel. If surfacing the flywheel you really need a shim to make all good as new on engagement height above the floor. It is a bit of an agrievation. I have done three or four, never doing the shim. If I do any more I'll shim it.
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Old 08-06-2011, 06:38 AM
aaa aaa is offline
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Shim it where?
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Old 08-06-2011, 09:04 AM
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Quote:
Originally Posted by Matt L View Post
Here's a picture of one:

http://www.racekit.co.za/page21.htm

It goes around the input shaft, and presses on the pressure plate fingers with no linkage. Really nice setup, if hard to service.

That is a combination of a throw out bearing and slave cylinder.

The Mb`s do not use this type set up. they use two individual pieces.

Charlie
__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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  #11  
Old 08-06-2011, 09:29 AM
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Slave is not annular (thank god, I've had to replace the bastard twice), and I don't remember seeing the eccentric bolt on the master, but I can take another look. I'm gonna get the car on my garage floor (flat) to see if the clutch is dragging at all. I did not have the flywheel resurfaced.
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1983 240D 3.0T 4-speed manual, now sold

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  #12  
Old 08-06-2011, 09:47 AM
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In my experience, a clutch should start to pull about 1.5" from the floor. When your leg gets used to a high engagement point, it can seem extreme when it returns to a "normal" height.

Now, if it starts to pull when you've simply eased off the pressure a little - like it's just lifted off the stop, that's a problem.
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  #13  
Old 08-06-2011, 10:08 AM
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Look up at the MC where the rod bolts to the clutch peddle. you will see the bolt, and behind the head should be another set of flats for the eccentric bushing.

Charlie
__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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  #14  
Old 08-06-2011, 10:08 AM
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Yeah, it seems like it's more like that. Good news is that, on a flat surface, I can shift into all four gears and reverse with out trouble and without movement. I might try to measure where it engages. It feels much lower than the three other manual trans. cars we have (BMW, Porsche and Honda all engage higher on the swing). I might also need a picture of where the eccentric bolt is; I couldn't see it looking at the master.
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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition
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  #15  
Old 08-06-2011, 10:10 AM
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That eccentric is down in the clutch/pedal linkage. I remember seeing it but never adjusted it. My TD clutch acts like yours and I was considering the eccentric but I'm used to it now.

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