I finally got around to installing my 181mm ec pulley kit only to find that when I took the stock pulley off that to my shock and horror the woodruff key was missing???!!!! I've found the part number from searching these forums but can't locate one to purchase. Does anyone know the measurements of the key so i can source one or have my machine shop at work fab one? Thanx.

 

What's the woodruff key?

 

Woodruff Key - Key Stock - Fasteners - Grainger Industrial Supply

This may help, but I don't know the size.

 

The "Woodruff Key" is not reuseable, any time a crankshaft pully is removed, a new key must be used. Do you have a Mercedes Benz dealer in your area, if you do, contact their parts department and they will supply you with the new key or advise you of the size. Good luck!
Dennis
DTMenace

 

As far as i am aware, the crankshaft BOLT is not to be re-used, but I've never heard of anybody having to buy a new woodruff key, of course I have been wrong before............

 

x2,,, i have used old , and new only if the old one was screwed up or lost for the last 55 years working on different cars,, i just looked I have a offset woofruff key, but for a different car jim

 

I haven't reused the crankshaft bolt, I've got a new bolt to go in with my new pulley just not a key. If we were meant to change the key every time we changed a pulley wouldn't we be supplied one with our pulley kits from eurocharged? I've kept searching for the part to no avail. Would really appreciate if someone knows where I can get one from

 

^^^+1^^^^^
Then Repair Manual does not mention replacing the key either.
The key will be to the DIN standard (metric) and not the SAE standard (inch).

 

Did you have the keyway pointing up when removing the pulley ? I find it strange that it's missing, unless someone has been there before. I would pull the seal and check it hasn't been pushed out of the keyway, back towards the timing gear. as far as getting a new one, I would think a Benz dealer would be your best bet, unless you can find someone splitting a motor. Have you e-mailed Rob at needswings , or Mr Mopar to see if they can help ? Sorry I can't be of any more help........

 

I have replaced the key for the crank and you can purchase them at the Chrysler dealership. I paid $6.34 for mine and it took 3 days to get in. But it had to have a key to begin with or the pulley would not keep the position on the crank with just the bolt.