Re: [FWDLK] What Is It?

[Philip Patterson <bintakin@EARTHLINK.NET>]

No benefit actually, it allowed the factory to use cranks and other things that
were not quite perfect. It saves the factory some money, it's just something
that you have to be aware of when you are overhauling a motor. Usually if you
regrind the crank or do any other changes, it won't matter anymore. But if you
are just going to ring and bearing the motor, it allows you to be sure you got
the right parts. It has no effect, either positive or negative, on motor
longevity. More a cost saving measure then anything. It's just something you
have to into account whenever you overhaul a motor with these markings.

MARK J HASH wrote:

> Since I'm from the school of the 'mechanically declined,' I'll ask the
> question:  what benefits would one derive from having the bearing journals
> finished .001 inch undersize or having the tapped bodies be .008 inch
> oversize?
>
> Mark   mjh
>
> -----Original Message-----
> From: Ron Waters <Ronbo97@home.com>
>
> >Quoting from the shop manual -
> >
> >A Maltese Cross stamped on the engine numbering pad indicates that engine
> is
> >equipped with a crankshaft which has one or more connecting rods and main
> >bearing journals finished .001 inch undersize.  The position of the
> >undersize journal or journals is stamped on the machined surface fo a
> >counter-weight.  Connecting rod journals are identified by letter R and
> main
> >bearing journals by the letter M.  Thus, M-1 indicates that number 1 main
> >bearing journal is .001 inch undersize.  also, a diamond-shaped marking
> >stamped on engine numbering pad indicates that tappet bodies are .008 inch
> >oversize.
> >
> >Ron
> >
> >----- Original Message -----
> >From: <Modelrcer@AOL.COM>
> >To: <L-FORWARDLOOK@LISTS.PSU.EDU>
> >Sent: Tuesday, December 21, 1999 12:30 AM
> >Subject: [FWDLK] What Is It?
> >
> >
> >> Hi Gang
> >>
> >>  Was looking at the 350cu block on the 58 Regal Lancer and right under
> the
> >> serial number is something that is shaped like the metal worn by the
> >German
> >> Red Baron flying ace. It kinda reminds me of a 4 leaf clover.
> Disregarding
> >> this poor description does anyone know what this is saying and what does
> >it
> >> mean?
> >>
> >> Much Thanks and MERRY CHRISTMAS TO ALL
> >> Mackey
> >
> >