Crankshaft pulley removal

2008 MERCEDES BENZ S600

145,980 MILES • 6.0L • V12 • TURBO • 2WD • AUTOMATIC

JUN841NC

MEMBER
28 POSTS

Hi, need help, car listed above w221 s600 biturbo. Need to remove crankshaft pulley just to get to a bolt to replace water pump. I'm thinking of using an impact drill to remove the crankshaft pulley. Would this work? Would the impact drill just loosen bolt without rotating the crankshaft? How do I loosen bolt on crankshaft pulley without rotating the crankshaft. Please bear in mind I do not have any special tools for the job.

Nov 2, 2021 at 11:28 AM

SQM

✓ASE Certified Mechanic
6,383 POSTS

Hello,

Mercedes actually calls for to use a crankshaft counter holder in order to remove the pulley. Even with an impact you might need a way to keep the pulley from turning. Depending on the location and access, sometimes using a barker bar to keep the pulley from turning could work.

https://www.2carpros.com/articles/how-a-harmonic-balancer-works

I have attached the replacement procedure for your reference.

Please let me know if you have any questions.
Thank you.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
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Nov 2, 2021 at 1:23 PM

SQM

✓ASE Certified Mechanic
6,383 POSTS

Did you send a response? It showed up as an additional question, but I do not see any follow up response. If you have not, then no worries. Thank you.

Nov 3, 2021 at 10:38 PM