Clutch questions - Page 2 - PeachParts Mercedes-Benz Forum

t walgamuth · #16 05-09-2014, 10:31 AM

Quote:

Originally Posted by winmutt

IIRC there was one on the 60x?

Not sure about that but the subject car is a 123 I believe.

Deemo13 · #17 05-09-2014, 12:48 PM

I am taking the flyhweel and the flexplate to a shop today to have them balanced, should I just ask them to balance it together? I made sure to mark where it goes on the crank.

Quote:

Not balanced together. They move differently on the input shaft, so it wouldn't make sense to balance them together.

This is what I figured. It wouldnt make sense.

Thanks again for the help guys! I am trying to get the car done by this weekend before summerschool starts.

t walgamuth · #18 05-09-2014, 01:23 PM

If changing a automatic equipped car to stick you need to take the automatic flywheel and the stick flywheel to a shop that can balance them. Have them check both for neutral balance. If they are neutral your work is done and you can put them back wherever you like. If one is not then the new fw must be matched to the existing one (for the engine you are using.)

Diesel911 · #19 05-10-2014, 05:45 PM

Quote:

Originally Posted by winmutt

IIRC there was one on the 60x?

There may be.
When I was trying to find info on the Cutch Bolts there was a Pic of a 190D Clutch and it appeared to have 2 alighment pins; one on each side.

In the Photo the showed up shiny compared to the rest. Another possible is that I was looking at some Bolts someone cut the Heads off of and was using them as temp algnment pins.

Maxbumpo · #20 05-12-2014, 10:28 AM

Quote:

Originally Posted by Deemo13

I am taking the flyhweel and the flexplate to a shop today to have them balanced, should I just ask them to balance it together? I made sure to mark where it goes on the crank.

Good! They should know what to do. The flex plate, crankshaft, and harmonic balancer were balanced as an assembly. You are replacing one of three components, so the replacement part (the flywheel) needs to match the balance of the flex plate.

My understanding is that they attach the flywheel to the flex plate, then balance those together by adding or subtracting weight from the flywheel only. Once the assembly is balanced, then your flywheel is 180 degrees out of balance from the flex plate (the counter-balancing weight on the fly wheel ends up exactly opposite of the original balancing weight on the flex plate). The shop will tell you which orientation the flywheel should be installed relative to the mark you made on the crank.

charmalu · #21 05-14-2014, 12:35 AM

Quote:

Originally Posted by Diesel911

This is a site from the UK that shows mounting a Mercedes Clutch. It has a parts list in Post #19 and it has the same part number for the Clutch Bolts. In the Pic they show they are Allen Head Bolts.

Project 2.5-16v

That part# 102-032-00-71 is a FW Bolt, does not fit the OM616 or OM617 engine.
it fits M102, M103, M104, M111, OM601, OM602, OM603 and OM606

Part# 615-032-05-71 is the part# for the OM616 and OM617.

Part# 110-990-04-19 is for and automatic FW.

This picture shows the difference. The longer one is for an auto trans. Shorter for the manual trans

Part#89
MOVING PARTS. Fits: Mercedes | Mercedes-Benz of South Atlanta

Price form the Calif Monterey Dealer Stahl Motors

Mercedes Benz SCREW - 6150320571

Charlie

crazy4diesel · #22 05-14-2014, 01:32 PM

Uhhhhh, this whole balancing discussion? If the flex plate and the fly wheel are both neutrally balanced, there is no need to have them balanced. Supposedly the assumption is they are neutrally balanced, and when they are match balanced to a crank there is a witness mark indicating that to be the case?

t walgamuth · #23 05-14-2014, 01:34 PM

Quote:

Originally Posted by crazy4diesel

Uhhhhh, this whole balancing discussion? If the flex plate and the fly wheel are both neutrally balanced, there is no need to have them balanced. Supposedly the assumption is they are neutrally balanced, and when they are match balanced to a crank there is a witness mark indicating that to be the case?

Yes, but its really hard to see.

Deemo13 · #24 05-14-2014, 11:42 PM

Oddly I responded to this like a day and a half ago and its not showing...weird.

I took the wheels to a shop in town that said he could not do the balancing on the 240D flywheel, but he would be able to check the flex plate for neutral balance. If it turns out to not be neutral balance, I am going to have to stow the car somewhere other than the driveway since the city is going to decide to take it or something.

I got the shorter flywheel bolts brand new from the mechanic part no. 615xxxxxxxxx. The other one looks like the one I had to drill off, the automatic ones.

Apparently there is only one shop in the entire Sacramento area that can do this. And if its not in balance I have to find it.

charmalu · #25 05-15-2014, 02:19 AM

Do you know of any Hot Rod shops or guys that do drag racing? They should know how to match balance the FW.

Dan in the machine shop at Santa Cruz Auto Parts did mine. He has the machine to do the work.

Charlie

Deemo13 · #26 05-17-2014, 04:07 PM

I ended up finding a shop that was able to tell me that the flex plate was neutral balance, as well as the 240D FW. Rex Hutcherson's Racing Engines in Sacramento was able to do it for future reference.

This was the best news I had heard all day

charmalu · #27 05-17-2014, 08:53 PM

When I first did the swap on the 85, the 616 FW I used was off and had to be balanced. Later on I located a 617 FW and it too needed to be matched.

Charlie

Deemo13 · #28 05-17-2014, 11:43 PM

Quote:

Originally Posted by charmalu

When I first did the swap on the 85, the 616 FW I used was off and had to be balanced. Later on I located a 617 FW and it too needed to be matched.

Charlie

Well, I darn well hope that my 616 FW is neutral, since the motor is in the car already. I'll know when I start it I guess.

Deemo13 · #29 05-21-2014, 10:15 PM

Alright one more question about the clutch. I have (what I think is) the clutch line hooked up to the transmission. There is no fluid in the transmission, but even with no fluid before I took it apart, I was able to feel the clutch. Now, when I depress the clutch, it just goes straight to the floor.

If I have to take the motor back out, it would be very beneficial to know before I start it (or the tranny at least).

winmutt · #30 05-22-2014, 07:19 AM

The clutch line is wet and hooks up to the slave cylinder on the bell housing. It is completely separate from the fluid in the trans. You need to bleed the clutch (the master clutch cylinder is hooked up to the brake reservoir right?) by hooking hose from the front right brake bleed nipple to the clutch bleed nipple. Crack both bleed nuts open and slowly press on the brakes about 3 times. Tighten the bleed nipples and see if you get resistance.