Originally Posted by dikzak

Well the thing with aluminum is that it suffers from metal fatigue really quickly, that's why I'm so hesitant to reuse them. I've seen the 'first finger tighten, then torque down' approach mentioned in this thread before, it seems like a good idea.
I sadly couldn't really find any info online about these bolts other than that the allen bolts are M5*18 and made of aluminum; noone really mentions the E10 bolts.


Thanks for the reply! Is 16mm long enough though? As far as I'm aware the originals are 18mm long.
So the E10 bolts are not made of aluminum, or at least are strong enough to be reused? ( I'm a metal fabricator, and aluminum is a PITA to work with. I really don't wanna strip the threads or break the head off.)
Funnily enough, the service manual really doesn't even mention these little m5 bolts. It pretty much ignores the existence of the breather covers completely other than passively mentioning that they are for crankcase ventilation.
So just for clarity's sake:
-the allen head bolts are M5*18 with a 0.8mm thread pitch, but M5*16 will also work?
-Torque on the allen head bolts is basically fingertight?
-The E10 bolts can be reused with a torque of 9,5NM? ( My service manual says 10NM, but that's within margin of error)


( Also, excuse me for using this username: I really only made an account so I could download attachments. Didn't figure that I would actually post something, so I just chose some random name. 'Dikzak' means fatass. )