How many walked? All or just one offender?
Pa
----- Original Message -----
From <dmeadow at juno.com>
To: <pasgeirsson@worldnet.att.net>
Cc: <Spridgets@Autox.team.net>
Sent: Tuesday, February 07, 2006 5:19 AM
Subject: Re: Postmortem on a 1275
> I guess I wasn't clear. Mine were sweat fit pins, not full-floating.
> They walked anyway.
>
> --David Littlefield
>
> On Mon, 6 Feb 2006 20:58:36 -0800 "Paul Asgeirsson"
> <pasgeirsson@worldnet.att.net> writes:
> > I guess I'm unfamiliar with building race engines, just long life
> > bullet
> > proof ones!! What I'm curious about is why would you go to a full
> > float
> > piston in a 1275? Is there an "Advantage" to getting more HP than a
> > fixed
> > pin in a 1275? So far, at least with the related experiences here,
> > it might
> > have some durability issues. Cooper S rods were sweat fit pins.
> >
> > Anyone?
> >
> > Paul A
> >
> > ----- Original Message -----
> > From: <dmeadow@juno.com>
> > To: <pasgeirsson@worldnet.att.net>
> > Cc: <thcollin@mtu.edu>; <spridgets@autox.team.net>
> > Sent: Monday, February 06, 2006 8:18 PM
> > Subject: Re: Postmortem on a 1275
> >
> >
> > > I'd like to know what is going on, as well. I just had exactly
> > this
> > > happen on a 1275 using Mega pistons from Mini Mania and APT
> > prepped rods.
> > > The wrist pins walked and badly scored the cylinder walls in much
> > less
> > > than 1500 miles (try 4 or 5). So far we can't figure out why.
> > Why would
> > > the wrist pins be undersized or the rod ends oversized? The
> > machinist is
> > > going to measure them and see what they are.
> > >
> > > Anyone have any first-hand experience with this?
> > >
> > > --David Littlefield
> > >
> > > On Mon, 6 Feb 2006 16:49:41 -0800 "Paul Asgeirsson"
> > > <pasgeirsson@worldnet.att.net> writes:
> > > > Wait a second here! It doesn't say it was a 1098, but what else
> > has
> > > > full
> > > > floating wrist pins? So now they want a 1275? I'm confused on
> > > > this
> > > > article. 1275 has press fit pins in the rods.
> > > >
> > > > Teflon buttons on a 1098 are a typical cure for retaining wrist
> > pin
> > > > clips,
> > > > so why the search for a different style engine? Am I missing
> > > > something?
> > > >
> > > > Paul A
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