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Old 01-06-2011, 01:15 PM
pleiades pleiades is offline
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Location: Oregon
 
Join Date: Jun 2010
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Mein Auto: '99 528i, M52TU w/stick
Quote:
Originally Posted by cn90 View Post
Your concern re bolt direction is addressed here:
http://forums.bimmerforums.com/forum...php?p=18811400
Actually I don't see much consensus there.

I went and looked at the PelicanParts DIY (for a 3-series flex disc replacement). They state the arrows should be pointing toward the flanges on each side (three one way, three the opposite). Regarding the bolts/nuts, they suggest there's a rule of thumb that the arrows also indicate the direction that the bolts are supposed to be oriented. It makes sense of course to have nuts turning on top of those flanges I guess, but each disc hole has a big piece of steel tubing inside so I'm not convinced that protecting the rubber is really a consideration here as long as one is using washers as well. Don't these things have washers under each nut? Another thing I notice is that while the guy in the Pelican DIY states the arrows indicate bolt direction, the flex disc he removed was bolted up like I've seen on my car and in many other pics, that is... with the bolt heads toward the rear and the nuts all on the transmission/engine side of the flex disc.
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