Hi guys.

Hopefully can shed some light on an issue I’m having.

Clutch biting point on my manual 5 speed w123 felt what I considered to be absolutely right and normal.

Then my clutch slave cylinder went so I had both the clave and master cylinder replaced at the same time. I asked the mechanic to bleed it up a second time because is felt a lot softer than before.

The biting point has changed considerably, it’s very low indeed now.

Could there still be air in the system ( I use the same garage all the time, never been let down in the past), they assured me it had been done correctly twice

Or is there some adjustment I can make on the pedal and fork to bring the bite point higher up the pedal travel?

I’m pretty handy with spanners but have very little experience of working on a clutch, other than an old grey Fergie tractor.

Cheers

Dan

I had a hard time finding the hydraulic reciever when I put a new one in my euro 300D with the 4spd. There's a few different ones out there, not all fit. If you pull it out and compare it to the old one the shaft coming out the end may be a bit shorter.

Theres a little plastic bit between the reciever and the transmission, about 1mm thick to accomodate a gage for checking clutch wear, I just took it out and it made enough of a difference for me.

Getting at the bolts you need to on a 300D is much harder than on a 240D the transmission sits further back in the tunnel and relatively very little space to work on it. IIRC the bolts have 12mm or 13mm head, you'll probably use an extension to loosen the top one. It's easier if you undo the transmission support and let the back of the transmission drop to give yourself some space to work with. With a 240D you don't even have to put the car up on stands, plenty of room to work there.

__________________
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?

See this thread:
http://www.peachparts.com/shopforum/diesel-discussion/409377-240d-clutch-question.html
The issues are much the same.
That there are two lengths of the pushrod is a significant matter.

Dd:
It may help if you let us know some more details: model year of the car, iron gearbox or aluminum, any components that have been updated, etc.

The eccentric bolt on the pedal to master cylinder connection can be adjusted easily and should fix the issue. Also the pushrods could be different if the mechanic installed the incorrect master or slave. The slave cylinder for the 5 speed is the same as the w201, therefore the superseded part number for the slave cylinder is 2012900311. This is assuming you have the 1 piece aluminum Getrag gearbox with a part number starting with 717.400. If the one for the 4 speed transmission was installed, it will work, just not the same as the pushrod is shorter. I would imagine your mechanic installed the correct parts. It may be prudent to double check.

__________________

Chris
84 280sl
82 300d euro

Ahhh bloody clutch is probably beyond me.

Cheers folks.

So I bought the car a yeah ago from an engineer, the guy built steam engines for fun, so pretty confident that his mechanics was up to scratch. He changed the clutch the year prior to me buying it.

On the motor way I lost all resistance in the clutch pedal and it stayed on the floor.
I went ahead and got the slave and master cylinder ordered which I used a good parts place that I always use.

Got that all fitted at the garage, collected it and the bloody linkage gear stick bushings failed leaving me with no gearbox.

They came and got me and re bled the system for me, whilst they also cobbled the linkage back together, I’ve got the new bushings to replace now.

Even though system has been bled twice and the correct parts fitted The biting point is very low and the pedal a lot softer than before.

It’s a 1983 300d 5 speed. Have done no work on it apart from thorough service of the engine.

Cheers

Dan

Taking out that plastic shim will probably do it, but access like I said is not the easiest. Of course I'm speaking of the 4 speed instead of the 5 speed, but if you get under there and look at how much space you have for hands and wrenches.

__________________
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?

It sounds like air in the system to me.

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.