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Discussion Starter · #1 ·
My crankshaft pulley is no longer on my engine and I need to reinstall it, but I have a couple of questions. People who have upgraded their pulley might know the answer to this, also anyone who has replaced the front seal.

Is it a stretch bolt? Does it need to be replaced with a new one?

What is the torque spec on the bolt?
 

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Sorry I don't always see every post. I used 150 ft. pounds using a new bolt. The hard part is locking the crank in place while applying torque to the bolts.
The bolt torque is 150 pound feet, PLUS you tighten the bolt another 90 degrees after reaching that torque. Always use a new bolt. Look on eBay or Mercedes parts houses for the crank pulley tool. DO NOT try to lock the engine by holding the flywheel by the teeth. The tool is available for a modest price and the only way to lock the engine.
 

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Discussion Starter · #8 ·
The bolt torque is 150 pound feet, PLUS you tighten the bolt another 90 degrees after reaching that torque. Always use a new bolt. Look on eBay or Mercedes parts houses for the crank pulley tool. DO NOT try to lock the engine by holding the flywheel by the teeth. The tool is available for a modest price and the only way to lock the engine.
Agreed, using the fly wheel may cause damage to the teeth.
I have a manual transmission so I can lock the motor with the transmission without using the tool.
 
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