good afternoon this John checking in is
doing a quick Facebook video for you
guys actually I'll probably end up
loading this to YouTube there I just got
done having a discussion with the
gentleman I was explaining that when you
regrind a camshaft it doesn't grind it
doesn't grind the hardness out the
hardness goes all the way into the core
and when we regrind a camshaft we don't
cut through that hardness the Internet
has spread that rumor for years and
years and years and it's false see how
these camshafts back here all these
camshafts and all these boxes over here
or bolt camshaft same casting numbers I
do camshafts for a living we grind
kamshev without hardening they don't
need to be reharden so now this guy says
oh my five nine Cummins camshaft is no
good because you guys re grounded so
well who told you it's no good because
we reground it you don't have to
reharden them they're chilled hardened
and they're hard over 250,000 deep on a
stock regrind which we did for that guy
this fifteen to twenty thousand stops it
smells like who told you that well this
guy someone this guy that builds
performance five nines out of Southern
Oregon blah blah blah this then he told
me it's right in a common service manual
that you can tree grind the camshaft I
say oh wait a minute you're listening to
Cummins telling you you can't use the
regrind camshaft so they could sell you
a new one what's going on here it's just
such like I said I'm retiring next year
and it's comical to me anymore that
people believe everything they read or
hear about on the internet and it
constantly snowballs it turns out from a
little bit true to a little bit more or
less true and then more and more and
then it just
constantly snowballs into a completely
fabricated story we do we do
big grinds on these five nine Cummins
camshafts we have three different
profiles we have the obviously to stop
one a stage one stage two and then a
stage three a big huge race grind that
we grind and they don't need to be
hardened the cores are hardened all the
way down into the middle of the court
now this guy this engine builder big
engine five nine Cummins performance
shop in Southern Oregon has not only
soaked this guy to put his engine
together for him because he doesn't know
how to now he's upgraded him and talked
him into reharden inist camshaft for a
couple more hundred dollars very
interesting the way people do business
if I did business as shifty and shady as
these other shops I probably could have
retired ten years ago these guys are
ripping people off because they're not
informed enough to know better
the camshafts do not need to be reharden
listen again I'll say it slow for those
in the back camshafts regrind do not
need to be reharden that's all that was
my public service announcement for the
day and then the guys all heated at me
like I'm like I'm lying I was like dude
does that is that guy get a warranty his
engine assembly he said no I said well
all warranty my parts for a year so
obviously I know what I'm doing and I do
probably 30 to 50 of these a month so I
don't know it's just like I said all
these camshafts back here are gonna be
reground
none of them are gonna be reharden
because reharden reground camshafts is a
myth and myth busted and the story have
a good week