Sleeveless motors have been around for many years! Single/Twin and Triple Cylinder Snowmobile Motors come to mind as does the 1800CC Suzuki M109. The fore mentioned motors use chrome plated cylinder bores with cast iron rings. This combo allows the rings to seat and not the cylinder walls. So hard is the chrome that chrome/molly rings will never seat. With Honda's reputation for motor design/building you can bet the new flat six has many, many hours of dyno and bench testing.
Or American Honda actually built engines for qualifying with no rings.
Yes you hear me no rings, they built them with such close tolerances
That there were no rings.These engines only lasted a short time. They were
only for qualifying.
I bring this up because I want to set you at ease as far as Honda engineering goes.
Honda & Toyota have the best engineers & tech's money can buy. In my opinion, they are far & ahead of anything else built anywhere.
Hmmm from the same people that sent some of the bikes out with less than the specified amount of lubricant?
There are manufacturers who's bikes leaked lubricants onto their Show Room floors! They learned to fill "crank cases and secondaries" only after the bikes were being delivered to the customersOriginally Posted by Heatnbeat
Yeah, true that. I do have more faith in Honda than H-D😄
Hopefully Honda does better than the Harley-Davidson bean counter that discontinued crank bushings for cost in 2011/2012 on the TC 96, 103 and 110 engines. Many owners had engine noise complaints on later engines and HD response was increased tolerances without bushings. They wouldn’t do anything unless the engine blew. The HD executive retired after touting the amount he saved the company. Of course he got paid a percentage of the bottom line so he didn’t care. He just squeezed a savings to make the bottom line look better.
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