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M113 Crank Pulley replacement?

blitz500sl

Active Member
Joined
Jan 5, 2013
Messages
67
Location
Basildon, Essex
Car
92' R129 500SL - 03' E500 Estate
That tool works when the starter motor is removed and the tool slotted in where it was. The two large pins locate in the bolt holes and the teeth in the middle mesh with flywheel teeth to lock it. The second picture in the link shows this.

Better - IMO - are what I think are called 'pin wrenches' as per photo below.

1727263200484.jpeg
 
You most likely might not even need to hold it while undoing the bolt with a 'rattle gun' but you might need something more substantial to hold it while torqueing up the new bolt.

Like the tool in your post
 
You most likely might not even need to hold it while undoing the bolt with a 'rattle gun' but you might need something more substantial to hold it while torqueing up the new bolt.

Like the tool in your post
Fair point - that's how it panned out for me. That said, OP may not have a rattle gun or, be short of space for one. If the radiator doesn't have to be removed so much the better. Unnecessary breaking into sealed fluid systems is worth avoiding. Which puts the onus back on a holding tool from the outset. I'd check what kind of job removing the starter motor is though before committing to a tool that locks the flywheel.
 
If you do go the starter motor route, it might be wise to fit a new one whilst you’re in there, depending on difficulty.
 
Hi guys I have a S211 E500 and I suspect my crank pulley is noisy.
First things first:-
Is the OP absolutely sure that it is the crank pulley that is noisy ?
Check first the various pulleys on the route of the serpentine belt.
It could be any of these - And - Much more likely than the crank pulley.
May be that the OP has already eliminated other possibilities ??
 
If you do go the starter motor route, it might be wise to fit a new one whilst you’re in there, depending on difficulty.
While that was good advice once upon a time - maybe not so much now. What I'm picking up on is that the quality of replacement parts is so reduced as to make leaving a working original part in place a better proposition. If replacing, keep the original - but having to reinstall it when the new fails undoes any labour saving.
 
If the OP hasn't got a rattle gun does the OP have a big enough torque wrench to do up the new bolt. Not done one myself but aren't the torque values on these bolts very very high ?

Fair play , if you can get to it to undo it without using a power tool a long enough breaker bar might do it.
 
Thanks guys for the replies but unfortunately the crank pulley was the least of my worries.
 
Thanks guys for the replies but unfortunately the crank pulley was the least of my worries.
What's up?
 

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