Joe Curry wrote:
>
> Linda and Bill Sohl wrote:
>
> > >Date: Sun, 14 Dec 1997 10:24:07 +0100
> > >From: Odd Hedberg <odd@triumphclub.se>
> > >Subject: Re: Unleaded Fuel / Valve seat inserts
> > >
> > >Guyot Leon F wrote to us on the subject of leaded fuel
> > >disappearing from the British market in the next century,
> > >and then asked if anyone had any experience with different
> > >methods of inserting harder valve seats into cast iron heads...
> > >> Does anyone have any further thoughts on all this grief ?
> > >> Leon
> >
> > >I can comment on the subject and say that in Sweden we've
> > >had no leaded fuel for something like 10-15 years now, to
> > >no ill effect it seems.
> >
> > We've had no lead in the USA for about 20 years. The northeast hasn't
> > had any leaded for at least that length of time. No ill effects reported
> > for Triumph owners. The Vintage Triumph Register asked its membership
> > for any personal experiences about 10 years ago. The only comments
> > we got were from folks that said they had no ill effects. One person wrote
> > and said they never used leaded at all (unleaded AMOCO was available
> > for many years before the total elimination of leaded) in their TR-3
> > for the entire life of the car and had no problems with valve recession.
>
> I guess that we have now conclude that there is no drawback at all in using
> unleaded fuel in out BLC's. Until now everybody has been doing it with no ill
> effect. However, we just couldn't leave well enough alone. No we just HAD to
> start talking about it.
>
> Now..get ready.. within the next week, we can all expect to see a rash of
> failures due to valve seats dropping out of the head. And it won't be caused
> by unleaded gas! No indeed!. It will be caused by that guy named Murphy who
> has a habit of popping up just when everything seems to be going too smoothly.
>
> As for myself, I try to concentrate on problems rather than potential
> problems. That way I keep Murphy busy with what is already broken and he
>can't
> affect anything that is not.
>
> With that said, I wish everyone (yes everyone) a very Merry Christmas, a happy
> Hanukkah and a very prosperous New Year.
>
> Best Regards to all
>
> Joe Curry
I know in the states that you have been using unleaded for ages, but
your cars are different to ours in many ways because of your
enviromental laws, eg carbs not injection. I think it entirely possible
that the cars that went to the states had different heads so they could
run on unleaded. Here in England we were running five star petrol when
the tr's came out and now we are already down to four star (98 ron), our
unleaded starts at 98 ron and the usual stuff is 95 ron. If our cars
were designed to run fuel above 98 ron (five star) leaded fuel and we
start putting 95 ron unleaded fuel into them surely there could be the
possibility that extra heat could be generated by the lower rated fuel
as well as making the valve seats more vulnerable to recession. I could
be talking pony though.
birdy
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