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« on: February 22, 2010, 03:01:30 pm »
Hi Chris,
Thanks for your response and info. When I said "paint flaking off" ...I
didn't mean that literally. What I meant exactly was that whenever you
bead blast a part that has paint, you can see the paint simply "shedding
away", exposing the bare metal, versus, bead blasting just dirty metal,
where it just appears to merely come clean. My blast cabinet has a
really strong filter/vacuum, whereby the parts cleaned are never
obscured by particulates or blast media flying around ...(wasn't so,
with my earlier cabinet!).
I had spoken with Bob Hansen today (who you know Invented the CB750 with
Mr. Honda), and I relayed the possible consensus out there that "some of
the cases were painted, and some were not"....And he basically just
laughed!...Asking me that if I could envision buttoned up crankcases
coming down the Paint line, and that possibly the painter would go out
for a cigarette break every so often, and maybe the cases just kept
rolling down the line (while he was outside smoking), and then when he
returned, he started painting cases again!...thus missing a dozen or two
motors in the meantime!.....
The preceeding was a joke , by the way.
Knowing Honda's attention to detail, and EXCELLENT, (and advanced)
manufacturing processes, we really had a tough time in the conversation
swallowing the "some painted/some not" theory. And for me to see on
every case I've cleaned paint being removed, and for some others to NOT
see any paint on their cases, that could really be the ONLY theory, that
could stand up.
OR....more likely, 1. as the cases ARE rough texture, and 2. given Honda
always painted as little as needed.... 3. the cases ARE pourous....and
4...40 years of time and weather simply WORE away any paint that WAS
there.....I would certainly be more of the mindset that they were ALL
painted, and that the folks today who report their cases AREN'T painted,
simply don't know where to look, (the starter motor well) and are
"fooled" by the current appearance of the (aged) rough metal.
In fact, Bob (Hansen) suggested I call Bob Jameson (whom I've spoken to
many times), who was there in Japan when the very first CB750 rolled off
the assy. line. (and spent a lot of time at the Factory)...and would
certainly be intimately familiar with Honda's processes then.
Well...thanks much Chris for your response, and great to hear from you!
Vic
P.S
Steve you told me on phone they other day that you purchased the frame #232 with no motor and then purchased engine #254 from ebay at a later time . So in real life this motor and frame never came together as they original frame and motor from the factory. So how can you be sure of the real history of the engine???