View Single Post
Old 08-19-2014, 10:49 AM
crassius crassius is offline
Motorized Bicycle Elite Member
Join Date: Sep 2012
Location: USA
Posts: 2,789
Default Re: How to Maintain a Motorised Bicycle

that question can have a few answers since not all engines are mounted the same way due to diffs in the frames they're attached to

if the rear mounting studs are nicely perpendicular to the frame, and the front mount was measured just right to support the weight without pulling the engine away from the rear mount, you'll find that it takes very little torque on the studs to hold the engine tight enough so that trying to push/pull the top of the engine left/right in the frame will give no movement whatsoever

the goal is not to reach a certain torque, but to keep the engine from moving under load

note that the studs will stretch a bit from time to time, so re-tightening is often needed

if the mounts weren't put on correctly, one may often strip the studs before the engine becomes stable
Sometimes I sets and thinks, sometimes I jes sets.
Reply With Quote