Hi Geoff,
To the best of my knowledge, all the US 1275 engines had lead free heads except
for
the first year or two. I've got a 1275 with the standard seats that has about
300K
on it with no problems with seat recession using no lead for who knows how many
years. Time to take the worry hat off!
I think that unleaded fuel was introduced in 1973 in the states, and I
understand
that mainland Europe had it before that.
Paul A
Geoff Branch wrote:
> Hey Paul: Were the 1275 heads really mostly no lead heads? Does that mean
>that
> they have valve seats? I have two running and sometimes (not very often)
>have
> worried about it.
>
> Geoff Branch
> '74 Meejit "Yellow Peril"
> '72 Innocenti 1300 Mini
>
> ----- Original Message -----
> From: "Paul A. Asgeirsson" <Pasgeirsson@worldnet.att.net>
> To: "Rob Lewis" <rob.lewis@photondynamics.com>
> Cc: "Geoff Branch" <gjbranch@mediaone.net>; "Gerard Chateauvieux"
> <pixelsmith@gerardsgarage.com>; <spridgets@autox.team.net>
> Sent: Friday, October 12, 2001 3:25 PM
> Subject: Re: Will a 1098 head fit on a 1275?
>
> > Most 1275s were lead free heads to begin with. Why worry about lead in a
>can.
> > As a previous lister said, slap it on and run it.
> >
> > Combustion chamber size in a 1098 is 28.3cc
> > Combustion chamber size in a 1275 is 21.4cc
> >
> > Along with smaller valves, I think it would drive like it was towing a
>truck!
> >
> > Paul A
> >
> > Rob Lewis wrote:
> >
> > > I've been off the list for a while, didn't
> > > realize that unleaded isn't as big a problem
> > > as some part supplies would indicate....
> > >
> > > Lead in a can didn't even register.....
> > >
> > > I'll head to Pep Boys tonight to see what
> > > they have in case the 1275 doesn't like
> > > decaf.
> > >
> > > -----Original Message-----
> > > From: Geoff Branch [mailto:gjbranch@mediaone.net]
> > > Sent: Friday, October 12, 2001 2:01 PM
> > > To: Rob Lewis; Gerard Chateauvieux; spridgets@autox.team.net
> > > Subject: Re: Will a 1098 head fit on a 1275?
> > >
> > > But it seemed like the only complaint about the 1275 head was that it
> > > didn't
> > > have a no lead conversion. It seems like it's the concensus of the list
> > > that
> > > running no lead is no problem anyway. Slap it back together and go.
> > > And if
> > > you're really worried about it buy some lead in a can?
> > >
> > > Geoff Branch
> > > '74 Meejit "Yellow Peril"
> > > '72 Innocenti 1300 Mini
> > > ----- Original Message -----
> > > From: "Rob Lewis" <rob.lewis@photondynamics.com>
> > > To: "Gerard Chateauvieux" <pixelsmith@gerardsgarage.com>;
> > > <spridgets@autox.team.net>
> > > Sent: Friday, October 12, 2001 2:40 PM
> > > Subject: RE: Will a 1098 head fit on a 1275?
> > >
> > > > According to Kent, it won't fit.
> > > >
> > > > But, the point was not for performance or
> > > > improvment, just trying to use the parts
> > > > that I have to get engine put together
> > > > quick and put on the road. The 1098 block/1275 head
> > > > will cost too much to build right now,
> > > > especially when I have a good 1098 head
> > > > and a good 1275 block.
> > > >
> > > > I just wanted it on the road with the least
> > > > amount of cash outlay.
> > > >
> > > > The "We tight" mentality (if it is what I
> > > > think it is.)
> > > >
> > > > -----Original Message-----
> > > > From: Gerard Chateauvieux [mailto:pixelsmith@gerardsgarage.com]
> > > > Sent: Friday, October 12, 2001 1:33 PM
> > > > To: Rob Lewis; spridgets@autox.team.net
> > > > Subject: Re: Will a 1098 head fit on a 1275?
> > > >
> > > >
> > > > Rob,
> > > >
> > > > Yes it will likely fit, but why...?? I read the link text, but this is
> > > a
> > > > false economy. A major factor in engine performance is the breathing
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