[Shotimes] Re: Engine Break In (WAS: Interesting...porting the intake)

[Jim and Debbie Leyden]

Although I can't speak for other manufacturers, I can attest to the fact
that new Chevrolet engines are only run about 1 minute before being stuffed
into a car.  There is no break-in running.  After the engine comes off the
assembly line it is put on a running stand on a carousel, all of the
electrical and cooling are hooked up.  There is a computer monitor at each
stand and the motor is cranked while the ignition timing is set.  As soon as
the motor starts and it is confirmed that it runs correctly it is shut down
and taken off the carousel and put into a crate for shipment to the assembly
line.  That is the extent of the engines break in until the finished car is
driven off the line.  If the engine doesn't start on the first trip around
the carousel they let it go around one more time trying to figure out why.
If it hasn't started at the end of the second revolution the motor is taken
off to be dismantled to find out why.

I'm sure every manufacturer does pretty much the same thing.

Jim
'93 MTX



-----Original Message-----
From: shotimes-admin@autox.team.net
[mailto:shotimes-admin@autox.team.net]On Behalf Of John Weidenbenner
Sent: Saturday, August 09, 2003 7:07 PM
To: Ron Porter; 'SHOtimes'
Subject: Re: [Shotimes] Re: Engine Break In (WAS: Interesting...porting
the intake)


If improved ring sealing really does happen with this procedure then the
auto manufactures should be able to devise an at the factory procedure that
will provide the same results. The improved performance, i.e. better
compression or whatever, should also boost fuel mileage and lower emissions.
I can't beileve that the manufacturers would not take advantage of that!

John W.

----- Original Message -----
From: "Ron Porter" <ronporter@prodigy.net>
To: "'John Weidenbenner'" <johnjweid@earthlink.net>; "'SHOtimes'"
<shotimes@autox.team.net>
Sent: Saturday, August 09, 2003 10:45 AM
Subject: RE: [Shotimes] Re: Engine Break In (WAS: Interesting...porting the
intake)


Too many variables for owners to follow, and it encourages driving that is
not the "norm", hence liability issues. Also, I doubt they really care
whether someone gets the last few HP out of their engine, since most of the
driving population never gets beyond 1/2 throttle, anyway.

Ron Porter

-----Original Message-----
From: shotimes-admin@autox.team.net [mailto:shotimes-admin@autox.team.net]
On Behalf Of John Weidenbenner
Sent: Saturday, August 09, 2003 11:04 AM
To: SHOtimes
Subject: Re: [Shotimes] Re: Engine Break In (WAS: Interesting...porting the
intake)


It's in the message below.

I wonder why the auto manufactures do not recommend this simple secret to
ring
sealing?

John W.
  ----- Original Message -----
  From: John Weidenbenner
  To: Ron Childs ; Chris Zap ; SHOtimes
  Sent: Wednesday, August 06, 2003 6:45 PM
  Subject: Re: [Shotimes] Re: Engine Break In (WAS: Interesting...porting
the
intake)


  I don't understand what those photos mean? A scientific report, not an
infomercial. Isn't he trying to sell a magazine?

  John W.
    ----- Original Message -----
    From: Ron Childs
    To: John Weidenbenner ; Chris Zap ; SHOtimes
    Sent: Wednesday, August 06, 2003 11:30 AM
    Subject: Re: [Shotimes] Re: Engine Break In (WAS: Interesting...porting
the intake)


    They presented pictures of pistons/rings that were treated equally
except
for the different break-in methods. What kind of proof would you be looking
for?

    -Ron Childs


    John Weidenbenner <johnjweid@earthlink.net> wrote:
      The motortune guy offers no proof of his theory. I consider it only an
      opioion without any scientific proof. The atricle is worthless.

      John W.

      ----- Original Message -----
      From: "Chris "Zap""


      > http://www.mototuneusa.com/break_in_secrets.htm
      >
      > Saw this a while ago.... very interesting article on break in for
engines
      of
      > all kinds!
      >
      > ~Chris
      > ----- Original Message -----
      > From: "John Weidenbenner"
      >
      > > What difference does that make? Looser bearings? More or less
      > > sealing/friction of the piston rings? "Bedding" in the engine
block
      (like
      > > making the brakes work "better")?
      > >
      > > John W.
      > > ----- Original Message -----
      > > From: "Paul Nimz"
      > >
      > > > I think it is in how the motor is broke in.
      > > >
      > > > Paul Nimz
      > > _______________________________________________
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