Anyone out there tackled this one? I'm having a hard time removing the bolt at the center of the viscous fan clutch - can't hold the pulley in place well enough to torque it loose. The service manual says you need a special tool to hold the pulley - any other ways to skin this cat?

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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo

The Factory Tool That goes behind the Pulley is Needed!

I Would ask at the Local dealer If You Could Borrow one ..With a Deposit...or try to locate one from a Fellow Member Here!


Good Luck!

Also...PLEASE make sure the Allen Bolt head is clean.Use Shop air and or Brake Clean to clean it out!..As Not to round it out!... I Have Done That!

Put the fanbelt back on and tension it up. that should provide enough friction on the fan pully to undo the bolt.

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'94 W124.036 249/040 leder; 8.25x17 EvoIIs
'93 W124.036 199/040 leder; 8.25x17 EvoIIs, up in flames...LITERALLY!
'93 W124.036 481/040 leder; euro delivery; 8.25x17 EvoIIs
'88 R107.048 441/409 leder; Euro lights
'87 W201.034 199/040 leder; Euro lights; EvoII brakes; 8x16 EvoIs - soon: 500E rear brakes
'70 R113.044 050/526; factory alloys; Euro lights

But it really didn't offer that much resistance, and I cranked up the tension a bit higher than normal.

Think I'm gonna have it flat bedded to my tech, since I'd also have to remove the crank balancer to get at the bottom-most water pump bolt. And just to make things suck a bit more, my air pump's bad - it recently decided to consume 2 monobelts and makes an awful racket. There's a clutch rebuild kit that should take care of that problem.

Oh well, I haven't had to do anything in a while so I guess it's my turn...

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo

Michael,
Looks as if MidOhio bit you with all those track sessions but glad you made it home in one piece. If it's going to die, good to die at home in peace. There is a special tool to hold the pulley while you loosen the viscous fan assy. and many cars are similar to that nowadays. The mfgs. don't make it easy for the DIYers these days so the dealers can have an excuse for the big bucks.
Surprised you didn't change the pump when you did all the hoses a while back...while you were deep into it all!

Glad you took my advice and decided to help moderate this forum.

Only 488.7 miles (one way) to BeaveRun in July!! Let's do it!

Tobias MB
190/5.6

Toby,

I considered doing the WP at that time, but you really don't have to get too deep into the motor to do just the hoses (no need to pull the fan, fan clutch, air pump, alternator, radiator, etc)

Is that BeaveRun date with MBZ? I'm gonna run there next week 4/25 in Trackman's P-car (getting ready for the Lap) so will share my track impressions

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"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo