Topic: 1975 Honda CB750F Cover Bolt Torques

[RodSOHC750]

I am curious to what is the correct tightening torque for the engine covers using 6mm bolts (valve cover, alternator housing, drive sprocket cover, clutch cover, valve cover top cover).  I am using gaskets w/0 sealant and socket head bolts with flat washers.  I'm screwing into aluminum, of course. I was tightening to 8 ft-lbs torque until I had one strip out on me.  Then I began torquing to 5 ft-lbs.  Now I'm worried this may not be enough to prevent oil leakage.  Anyone have good practical experience on the correct tightening for these bolts?  Thanks.

[754]

I think its 5-8 ft lbs.. If you were only at 8 I think it was previously overstressed..

[calj737]

8# maximum for 6mm bolts. If the case stripped, then there was prior damage, OR, your torque wrench is not calibrated accurately. For torque values that low, either do them by hand where they are "snugged up" or use an Inch/Pounds wrench. Most Ft/Lb wrenches are not reliable at less than 12# of torque.