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      03-17-2021, 03:31 PM   #137
MasterYous
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Drives: 2017 M240i F23/2020 M4 F83
Join Date: Mar 2012
Location: US

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Quote:
Originally Posted by MINERALWHITE_F80M3 View Post
Great vid!

I tried going from above as mentioned by Imperial328i but got scared of like you mentioned something falling catastrophically lol but NOW I feel confident taking your time this can be done!
You should definitely try it. Even if your pulley comes off, you can release tension on the belt and fix it, as many DIYers here have done.

I took extra pains to make sure my pulley did not move. These extra pains are detailed in my writeup, but to summarize:
- work very slowly, use bare hands so you get a good feel inside the hub
- kitty corner approach
- loosen all bolts (kitty corner fashion) first but keep them fastened
- have someone on standby to hold the pulley if needed
- remove one bolt at a time - make sure you have loosened them enough so you can do this by hand
- immediately apply loctite to the first two new CBC bolts and insert them /carefully/ in kitty corner - hand tighten, do not torque them
- continue with other bolts also with same approach
- once all bolts are in proceed to torque to spec, in kitty corner fashion

your pulley will probably not come loose if you are super careful.
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