Fan Clutch removal
 

How does the special tool fit to remove the fan clutch on my M104 W124??

Bump.

Anybody???

I believe it works like the M103, have you ever done one of those? You have the special tool for holding the fan hub which is like a heavy rod, with a large "L" on top and the small "L" point the other way on the bottom, right?
Gilly

Yeah I have that but do not know where it goes. Can you describe or have pix??

There are two versions for the M104.
One is a large wrench which holds the pulley. The other is a bent rod that you have to insert through the back of the pulley where there are designated holes. There is a notched area on the hub mount that the rod slips through in order to keep it from turning. That's a horrible description, but you know what works great on this site? The search function. TONS of write ups on this procedure.

Yeah, unfortunately the write ups are pretty vague when it come to the method. Not very accurate desciptions of what you should be looking for.

Here is an image of where the "holding tool" needs to go. This bracket is off a M103 engine.I imagine it is very similar.

http://farm4.static.flickr.com/3381/...d7a271d5_o.jpg

You can probably use a leather belt to hold that pulley so it doesn't spin.

X2 on this. Surprisingly enough, a VW Beetle valve cover bale is the perfect tool for this job as well. Doesn't everyone have an old VW rotting in the backyard? :D

i just got an old screwdriver, ground it back, heated it up and bent it till it fitted nice enough

Thanks all for the info. I will be tackling this again this weekend as I must change out my belt tensioner shock absorber. The old one is rattling.

I'll try to find the write up I used when I first did this. It may have been in mbworld but if I run across it I'll post it for you.

Another tool that works well is those doglegged allen wrenches that come in pouches and have several sizes in them. That's what I used after my original MB tool didn't work anymore after I replaced the pulley mount piece with a Febi replacement when the bearing imploded. I digress, if you have replaced this with a Febi, the o.d. of the location hole in the pulley will be too small for the MB tool so you will have to improvise. Boo to Febi.

It is not so much the hole diameter as I have a special tool but how do I locate this hole and its location relevent to the right/left side of motor.

What I am looking for to insert the tool?? Near what other pulley/engine component or???

The hole is on the pulley itself so it rotates with the pulley/clutch/fan. The orientation of the rod to be inserted is precise as posted by Ivanerrol.

If you look at the picture and follow the rod down, the hole is in the engine fan pulley. It will be the one hole in the pulley that does not have a bolt sticking out of it (ie it will be empty). You will need to look at the pulley from the rear in order to line it up with the groove in the bracket/cover that is bolted to the front of the engine.