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  #1  
Old 09-26-2012, 11:32 PM
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I Have A Cricket. . .In My Clutch

My clutch sounds like a cricket, and it seems to be getting worse. It's not too bad yet, but it is noticeable. As soon as I apply a small amount of pressure to the clutch pedal, the noise stops. When I release the pedal, it starts again. I'm not a clutch expert, so I'm hoping someone can help me out. Is there a fix for this, or is it time for a new clutch???
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1982 240D - 292,000 miles and counting
Same family for 33 years
Newly rebuilt Monark injectors
Newly replaced clutch
New Bilstein shocks
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  #2  
Old 09-26-2012, 11:48 PM
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A little bit of rhyming and you could be Dr. Seuss

Sounds like a worn pilot bearing.

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87 300D
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  #3  
Old 09-26-2012, 11:56 PM
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Quote:
Originally Posted by sixto View Post
A little bit of rhyming and you could be Dr. Seuss

Sounds like a worn pilot bearing.

Sixto
87 300D
It's a work in progress. . .

I'm assuming that leads to a total clutch replacement. . .I'm getting the feeling that this is one of those "while you've got it torn apart" jobs.
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1982 240D - 292,000 miles and counting
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Newly rebuilt Monark injectors
Newly replaced clutch
New Bilstein shocks
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  #4  
Old 09-27-2012, 12:10 AM
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Also, while we're on the subject, can anybody point me in the direction of a clutch replacement DIY, please?
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Same family for 33 years
Newly rebuilt Monark injectors
Newly replaced clutch
New Bilstein shocks
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  #5  
Old 09-27-2012, 12:50 AM
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smoke gets in your eyes
 
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I didn't see anything on this forum with a quick look.

The Haynes MB Diesel 123 Series and Chiltons MB Couples/Sedans/Wagons 1974-1984 manuals give decent guidance on the job. You might find them at the library if you don't have copies.

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  #6  
Old 09-27-2012, 01:12 AM
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If you buy a Chiltons or Haynes manual they show up used on eBay often; new ones have gotten quite expensive lately.
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  #7  
Old 09-27-2012, 01:30 AM
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Quote:
Originally Posted by mjquillici View Post
Also, while we're on the subject, can anybody point me in the direction of a clutch replacement DIY, please?
Ever look in the DIY Articles?
PeachPartsWiki: Clutch R&R

This is the thread it came from.

How to replace a clutch in a 240D - Pictorial


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  #8  
Old 09-27-2012, 03:12 PM
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It's a worn throwout bearing, $30 or so. Once trashed, it will take out the pressure plate >$100. The friction disc is a while your in there, but the pressure plate, if in good shape need not be. You have some time, but not forever. Have VIN handy when ordering.
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82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times
It's hard to
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have an accident
two things
when you're on
at the same time.
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  #9  
Old 09-27-2012, 04:12 PM
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Quote:
Originally Posted by moon161 View Post
It's a worn throwout bearing, $30 or so. Once trashed, it will take out the pressure plate >$100. The friction disc is a while your in there, but the pressure plate, if in good shape need not be. You have some time, but not forever. Have VIN handy when ordering.
Interesting. The clutch is generally good, but slips noticeably in cold weather. More than anything, it's annoying. . .
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1982 240D - 292,000 miles and counting
Same family for 33 years
Newly rebuilt Monark injectors
Newly replaced clutch
New Bilstein shocks
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  #10  
Old 09-27-2012, 06:08 PM
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The pilot bearing is between the engine and transmission, it only operates when the clutch is open. ( Clutch peddle pushed. )

The release bearing ( throwout bearing ) is connected to the clutch peddle. This bearing pushes on the clutch fingers to open the clutch.

In many cars, the release bearing is in light contact with the clutch fingers. After a period of time the small amount of lubrication wears off causing a squeak as the fingers rub across the bearing. ( The fingers are never perfectly centered so some scrub will occur. ) This also causes the release fork to jiggle around. If the pivot or slave cylinder push rod is dry the noise you have will occur.

If there are access ports on the side of the bell housing, you might be able to lightly grease the clutch fingers / face of release bearing. A touch of oil on the fork pivot / push rod.

"" Interesting. The clutch is generally good, but slips noticeably in cold weather. More than anything, it's annoying. . . ""

A clutch can't be generally good and slip. A slipping clutch allows the engine speed to increase at a greater rate than road speed.

Is the car in question the one in your sig? Has the clutch ever been changed? If never been changed it might be time to change the clutch. For maximum life, get the flywheel reground so you have a flat surface.
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  #11  
Old 09-27-2012, 07:01 PM
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Quote:
Originally Posted by Diesel911 View Post
If you buy a Chiltons or Haynes manual they show up used on eBay often; new ones have gotten quite expensive lately.
Slight OT, if you have a Half Price Books in your neighborhood, check for them there. I got mine for $12 brand new.
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  #12  
Old 09-27-2012, 08:26 PM
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Quote:
Originally Posted by mjquillici View Post
Interesting. The clutch is generally good, but slips noticeably in cold weather. More than anything, it's annoying. . .
The clutch is not "generally good" if it slips anytime. As far as clutch jobs go, it is said that the 240D clutch job is pretty easy. To avoid bleeding the clutch when your done, undo the slave and wire it out of the way, not breaking into the hydraulic system. Also let the flex disc go leaving it on the tranny, wire/wedge the fwd end of the drive shaft up and out of the way. Let the two 13mm bolts go that hold the tranny cross member to the body, leaving the cross member on the tranny. Be sure and mark the drive shaft if you think theres any chance of them getting separated. ,dont ask how I know this should be done
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  #13  
Old 09-29-2012, 02:02 PM
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Just did engine R&I on my 82. The ends of the front & rear driveshaft segments are alignment marked from 82 on. You should see a "-" mark on the end of one forging, and a "=" on the end of the other. Preserve this alignment.

Slipping clutch is likely the friction disc.

+1 on those tips. The clutch can be a PIA to bleed, but it's easy to avoid. Pushing from the RF caliper to the slave cyl is the way to go.

You'll need an alignment tool.The cheap plastic splines are not fun. Get the metal alignment tool, even if you'll only use it once.
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CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times
It's hard to
more likely to
concentrate on
have an accident
two things
when you're on
at the same time.
a cell phone.


www.kiva.org It's not like there's anything wrong with feeling good, is there?
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