993 Alternator to Clamshell Torque Spec
 

Replaced my alternator and fan due to contact of the fan with the shroud about 6 months ago. New fan was pricey. Drew a permanent marker line on the shroud to keep an eye out for any recurring contact. Sure enough looked at it a couple of days ago and my new ($$$) fan was again touching the shroud as evidence by missing marker.

In this pic I had already redone the marker but you can see the dark line passing through it at the red arrow.
http://forums.pelicanparts.com/uploa...1734630417.jpg
Fearing the worst made a couple of discoveries that may be a lucky fix for me. First I had read somewhere the 5mm shroud strap bolt torque was 18NM. Now reading in several places it is 8NM. Big difference. I believe this will help a bit.
Secondly put a wrench on the top two alternator-to-clamshell nuts. Happy/sad to find them very loose, as in nearly finger tight kind of loose. Cannot imagine I installed the alternator like this but hey stuff happens or they have come loose on their own since then.
http://forums.pelicanparts.com/uploa...1734630750.jpg
Snugged them up and it seems to made in difference to my eye caliper, pulling the fan up away from the bottom of the shroud just a bit.

Checked my Bentley and searched the forum. Every time I search it gives me the alternator pulley nut torque. Cannot find a spec for these nuts. Also thinking of using a bit of lock tight on them. They are through the plastic clamshell with a metal sleeve. Want to tighten them as much as spec will allow. Anyone got this number?

Thanks