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Engine mount bolt torque value
#19
(07-30-2017, 07:44 AM)TCinNC_imp Wrote:
(07-29-2017, 06:15 AM)2017EX_imp Wrote:
(07-28-2017, 07:03 AM)TCinNC_imp Wrote: So the correct torque value for the Motech bolt is 28 ft/lbs, not 44 as the manual calls for?

Yes. The 2 supplied long Motech bolts are metric GRADE 8.8, roughly equal to an SAE GRADE 5, and are slightly longer than the 2 stock long Honda bolts. The STOCK Honda long bolts are roughly the equivalent of an SAE GRADE 8. So, the softer Motech bolts take a lower torque value of 38 N.m ( Newton Meters ) which is equal to 28 Ft. Lbs. The manual calls for 44 Ft. Lbs. FOR THE HARDER STOCK LONG BOLTS. If the softer Motech bolt were torqued to 44 Ft. Lbs. it might strip the bolt threads. The Motech bars use the STOCK Honda bolts on the frame down tubes, so those bolts use the Honda torque spec of 36 Ft. Lbs. as called for in the manual.

Yes. The 2 supplied long Motech bolts are metric GRADE 8.8, roughly equal to an SAE GRADE 5, and are slightly longer than the 2 stock long Honda bolts. The STOCK Honda long bolts are roughly the equivalent of an SAE GRADE 8. So, the softer Motech bolts take a lower torque value of 38 N.m ( Newton Meters ) which is equal to 28 Ft. Lbs. The manual calls for 44 Ft. Lbs. FOR THE HARDER STOCK LONG BOLTS. If the softer Motech bolt were torqued to 44 Ft. Lbs. it might strip the bolt threads. The Motech bars use the STOCK Honda bolts on the frame down tubes, so those bolts use the Honda torque spec of 36 Ft. Lbs. as called for in the manual. Thank you.

Yes. The 2 supplied long Motech bolts are metric GRADE 8.8, roughly equal to an SAE GRADE 5, and are slightly longer than the 2 stock long Honda bolts. The STOCK Honda long bolts are roughly the equivalent of an SAE GRADE 8. So, the softer Motech bolts take a lower torque value of 38 N.m ( Newton Meters ) which is equal to 28 Ft. Lbs. The manual calls for 44 Ft. Lbs. FOR THE HARDER STOCK LONG BOLTS. If the softer Motech bolt were torqued to 44 Ft. Lbs. it might strip the bolt threads. The Motech bars use the STOCK Honda bolts on the frame down tubes, so those bolts use the Honda torque spec of 36 Ft. Lbs. as called for in the manual. Thank you.
You are welcome, and glad I could lend a hand. I have the Motech bars on my bike, and from my research on everything available out there, my personal opinion is that they are the best option in terms of design and quality for the CB1100.
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Messages In This Thread
Engine mount bolt torque value - by TCinNC_imp - 04-06-2016, 06:44 AM
RE: Engine mount bolt torque value - by 2017EX_imp - 07-31-2017, 12:13 AM
RE: Engine mount bolt torque value - by DAC - 07-13-2020, 12:35 AM
Engine mount bolt torque value - by mrded_imp - 07-30-2020, 04:18 AM
Engine mount bolt torque value - by mrded_imp - 07-30-2020, 07:23 AM

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