New M8 Blown
#121
09-06-2018, 03:47 PM
Outstanding HDF Member
#122
09-06-2018, 03:50 PM
Outstanding HDF Member
a shoe salesman would outdo any moco "engineer" any day, any time. Said salesman probably makes more money selling shoes than those hacks at the moco get paid, too, assuming that both parties are being paid amounts commensurate with what their services (and respective intelligence/abilities) are actually worth.
I'm with you. I'm stickin' with my essentially un-modded '15 limited. Zero interest in the m8's, now or ever.
I'm with you. I'm stickin' with my essentially un-modded '15 limited. Zero interest in the m8's, now or ever.
#123
09-06-2018, 04:37 PM
Supporter
I'm looking at the pics of that blown M8 and wondering just what sequence of events had to take place for this to happen?
If the balancer did strike the crank, that would require the balancer, which is positioned based on the casting of the crankcase, to physically skip teeth on the gear drive. To do this the axis of the balancer would have to physically move further away from the axis of the crankshaft twice the depth of the teeth (unless teeth sheared off).
Seems like some hefty beating took place on that motor. I can't really fault HD designs for this failure. Sumping and oil transfer, yea, they'll burn in hell for those, but not this.
If the balancer did strike the crank, that would require the balancer, which is positioned based on the casting of the crankcase, to physically skip teeth on the gear drive. To do this the axis of the balancer would have to physically move further away from the axis of the crankshaft twice the depth of the teeth (unless teeth sheared off).
Seems like some hefty beating took place on that motor. I can't really fault HD designs for this failure. Sumping and oil transfer, yea, they'll burn in hell for those, but not this.
#124
09-06-2018, 05:24 PM
Seasoned HDF Member
I'm looking at the pics of that blown M8 and wondering just what sequence of events had to take place for this to happen?
If the balancer did strike the crank, that would require the balancer, which is positioned based on the casting of the crankcase, to physically skip teeth on the gear drive. To do this the axis of the balancer would have to physically move further away from the axis of the crankshaft twice the depth of the teeth (unless teeth sheared off).
Seems like some hefty beating took place on that motor. I can't really fault HD designs for this failure. Sumping and oil transfer, yea, they'll burn in hell for those, but not this.
If the balancer did strike the crank, that would require the balancer, which is positioned based on the casting of the crankcase, to physically skip teeth on the gear drive. To do this the axis of the balancer would have to physically move further away from the axis of the crankshaft twice the depth of the teeth (unless teeth sheared off).
Seems like some hefty beating took place on that motor. I can't really fault HD designs for this failure. Sumping and oil transfer, yea, they'll burn in hell for those, but not this.
#125
09-06-2018, 11:05 PM
Club Member
I'm looking at the pics of that blown M8 and wondering just what sequence of events had to take place for this to happen?
If the balancer did strike the crank, that would require the balancer, which is positioned based on the casting of the crankcase, to physically skip teeth on the gear drive. To do this the axis of the balancer would have to physically move further away from the axis of the crankshaft twice the depth of the teeth (unless teeth sheared off).
Seems like some hefty beating took place on that motor. I can't really fault HD designs for this failure. Sumping and oil transfer, yea, they'll burn in hell for those, but not this.
If the balancer did strike the crank, that would require the balancer, which is positioned based on the casting of the crankcase, to physically skip teeth on the gear drive. To do this the axis of the balancer would have to physically move further away from the axis of the crankshaft twice the depth of the teeth (unless teeth sheared off).
Seems like some hefty beating took place on that motor. I can't really fault HD designs for this failure. Sumping and oil transfer, yea, they'll burn in hell for those, but not this.
#126
09-06-2018, 11:45 PM
Seasoned HDF Member
#127
09-07-2018, 01:21 AM
#128
09-07-2018, 08:08 AM
Elite HDF Member
Join Date: Jun 2007
Location: People's Republic of Boulder Colorado
Posts: 4,867
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There have been issues with TC counter balancers. Balance gear moves on the shaft. Bike vibrates.This happens a lot. Stab the rear brake while rolling down the road to the point you stall the engine and you damage the balancer mechanism. Balancer tensioner shoes wear out. Some chains have snapped,
At least with the M8 balancer if the balancer goes out of time, you know where the issue is..
Placing the balancer close enough for the issue to happen can catastrophic if this issue happens but from design point of view you want the axis of the balancer close as possible to the axis of the crank to get the best counter balance. The 2 opposing one are good but they take up space. Everyone complains about how heavy these turds are.
I think the guys complaining should go back too selling shoes.
At least with the M8 balancer if the balancer goes out of time, you know where the issue is..
Placing the balancer close enough for the issue to happen can catastrophic if this issue happens but from design point of view you want the axis of the balancer close as possible to the axis of the crank to get the best counter balance. The 2 opposing one are good but they take up space. Everyone complains about how heavy these turds are.
I think the guys complaining should go back too selling shoes.
Yeah, that makes a lot more sense - to me, anyway. I'd been thinking for all these years that the MoCo had actually come out with a new design that just worked to begin with and without issues.
Silly me...
Thanks for the info,
JP
Last edited by jpooch00; 09-07-2018 at 08:10 AM.
#130
09-07-2018, 12:51 PM
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