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Whats the torque on the case half bolts. Both the 10mm and the 12mm. There doesn't seem to be any info in the manual.
 

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Classic aircraft mechanic answer: "you go all the way up to the point it's over torqued then back a little!" :lol:

some will find out for both of us ! :roll:
 

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Sensei
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Case bolts simply require a good "snug".... Torque specs are by bolt diameter, not head size....There aren't any 10mm or 12mm case bolts......they are 6mm or 8mm...some outer case covers have 5mm bolts.....IF you go by the 10 and 12 torque specs you WILL break or strip-out bolts...

General torque specs......
6mm 5.0 to 8.7 ft pounds
8mm 13.0 to 18.1
10mm 21.8 to 28.9
12mm Torques by specific usage....
 

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66Sprint said:
Case bolts simply require a good "snug".... Torque specs are by bolt diameter, not head size....There aren't any 10mm or 12mm case bolts......they are 6mm or 8mm...some outer case covers have 5mm bolts.....IF you go by the 10 and 12 torque specs you WILL break or strip-out bolts...

General torque specs......
6mm 5.0 to 8.7 ft pounds
8mm 13.0 to 18.1
10mm 21.8 to 28.9
12mm Torques by specific usage....
There is a good one here..

http://mdmetric.com/tech/torqcht1a.pdf
 

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From my Honda Manual

6mm 6 ~ 9 ft-lbs
8mm 13 ~ 20 ft-lbs

they another 8mm listed as 15 ~ 25 ft-lbs. probably a different thread
 

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You'll be safe on the 6mm screws if you install them with a conventional screwdriver and just hand tighten them. Never put them in with a ratchet drive or an impact wrench - you can literally extract the threads from the cases. Tightening them by using more leverage than a screwdriver won't usually stop an oil leak and can distort the case covers. The best thing for getting the screws out is a 3/8 air impact set to low power. Let it rattle away for a while, and out they come - intact. High power will rout out the screw head. Works for ignition screws, too. The hammer impact wrenches have an unfortunate tendency to bend the screws just below the heads, although some riders seem to be quite successful at getting screws out with them.
 
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