snapped crankcase bolt

[fishtail]

following the guide - which suggested 6.8N -

Once all is well, tighten the bolts evenly in a criss-cross pattern to close the cases fully. Remove the bolts again, place a drop of thread lock on each and refit. Torque them up carefully and evenly. I'm not sure what the official torque setting is, I tightened them up to 8 lbs-feet (11 Nm) and only one broke! Try 5 lbs-feet (6.8 Nm).



have now snapped a bolt... case is back apart..

one step forward - 2 step back,,,


what should the torque be

[fishtail]

bolts removed,..

actually I cheated, i didnt fancy my shoddy drilling, so went to a mates who had a drill on a stand!

result

nice one Badcat

he suggested not doing em up so tight

hmm my new small torque wrench only goes from 5Newts to 25

wondering if it was *tooo* cheap? ( about 25 quid new )

[twistednuts]

Not sure about crm bolts but berg bolts are 10Nm

25 quid doesnt sound too bad, as long as its calibrated.

[fishtail]

snapped at 6.8

either

torque wrench is over doing it

or

bolts are crap


I just done em up so they feel tight -


ps anyone know if I can use hi temp copper compound instead of molydbenum?

[twistednuts]

Are they the original bolts?

Just use the copper slip, you'll be rebuilding it again in 3 months

[fishtail]

hahha - if that happens I rthink my wife will donate the bike on my behalf

I will be telling her big fibs about the flux capacitor melting down or summat......

at least next time I might have half a clue what I am doing?????

[fishtail]

anyway - look on the bright side. it might not even last 3 months - could be end of june