RE: [ihc] Re: SII 345 compression test

["Steven Stegmann" <steve.stegmann@xxxxxxxxxxxxx>]

Rings have much harder faces than in the olden days.  Takes a long time to
seat.  That's what the swirl pattern is put in the cylinders for.  Helps
seat the rings.

Steve

-----Original Message-----
From: owner-ihc@domain.elided [mailto:owner-ihc@domain.elided]On Behalf Of
Marcus
Sent: Thursday, February 05, 2004 10:23 PM
To: John Hofstetter
Cc: Ryan Moore; Ted Borck; ihc-digest@domain.elided
Subject: Re: [ihc] Re: SII 345 compression test


Well, I know what I would do if I were looking at a rebuilt 345 with 90psi
for compression. Rebuilt or now, I wouldn't look at it anymore. If it has
over 1K on it and the compression is still reading low, then it wasn't
broken in properly. Either way, with a compression range from 90-110, it's
still off and has issues.

Regardless of what IH was teaching their techs, 5K is excessive for seating
of the rings let alone 40K.

Marcus

----- Original Message -----
From: "John Hofstetter" <hofs@domain.elided>
To: "Marcus" <shodude@domain.elided>
Cc: "Ryan Moore" <baradium@domain.elided>; "Ted Borck" <tborck@domain.elided>;
<ihc-digest@domain.elided>
Sent: Thursday, February 05, 2004 10:59 PM
Subject: Re: [ihc] Re: SII 345 compression test


> On Thursday, February 5, 2004, at 07:55 PM, Marcus wrote:
>
> > The rings should have seated in under 1,000 miles unless it was a Hi-po
> > rebuild.
> >
> > Either way, 90 PSI is cause for concern.
> >
> > Marcus
>
> International in the 70's were teaching their reps that their V8's were
> not fully broken in (rings seated) until around 40,000 miles.
>
> And, not to be argumentative, but 90 psi with rings not yet seated is a
> lot less concern than 90 psi after rings are seated.
>
> John
> John Hofstetter
> www.goldrush.com/~hofs