Re: Gasoline: Leaded or Unleaded ??

Posted by george md on September 08, 2004 at 23:27:06 from (65.216.222.118):

In Reply to: Gasoline: Leaded or Unleaded ?? posted by Bob T on September 08, 2004 at 19:11:16:

If you fellows worked in an automotive machine
shop , you might have a different outlook on the
no lead gas . Engines with hard seats or flame
hardened cast seats don't have a problem with no
lead gas. The older engines with the seats that
are part of the head or those that had flame
hardened seats that the hardening has been ground
thru will wear the seat quite rapidly.For hobby
or show tractors it will take a long time to
cause a problem . Recommend that if you have the head
off for any other reason that you get seats installed
while it is off, saves the work and gaskets of
doing it later. I have had ford and chevy heads
in with the seat worn away so far that the lifter
could not compensate for any more seat wear and
then burned the valve. Install a set of hard seats
and the problem goes away to stay. We did not have
this trouble before no lead gas.

george

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