Originally Posted By: SlipperyPete
Yeah, about that. The one I changed last winter was at 38K and wasn't completely done.
My definition of a worn out chain is after the 3rd adjustment because that
is undeniable evidence that the factory installed grease is beginning to
fail to lube the critical pin roller junction hidden behind the X ring... the
length of the chain is growing because of this metal to metal wear... I can
not call a chain serviceable that is grinding metal... it's like saying that a
dry bearing that runs ruff is acceptable... the net result is another 2 to
3% drop in RWHP as more energy is lost grinding metal behind the X
ring...
This is what we don't see behind the X rings... metal to metal wear
every time we adjust the chain that eats into our engine's available
HP... a new pin measures 206.5 and wears down to 205.5 at the 8K mile
mark... looks good to the naked eye but multiply that 1 thousand of an
inch times 108 links and you have 108 thousands of an inch wear or
about the range of the green marks provided by Honda's wear gauge...
202.8 show the very visible wear at the 12K mile mark... the pins are
turning red from extreme heat of grinding dry metal... a chain in this
condition may consume up to 6 to 8% of our RWHP... not to mention it
may snap into and cause case damage...