[VAC] Vintage haulers and unleaded fuel

["Weimers" <mweimer@xxxxxxxx>]

Several of us use vintage tow vehicles to pull our Airstreams.  My question
today is:  has anyone heard of an old engine that developed valve trouble
because of unleaded fuel?  The lead in the old fuel lubricated the old type
exhaust valves used previous to around 1974. Supposedly, the lack of lead
will cause wear in the exhaust valves in these old engines. I've never met
anybody that actually had this problem, however. I have used lead substitute
in the past,, but don't know if it's actually helping anything or not.
Has anyone else addressed this issue?

MARC WEIMER
Punxsutawney, PA  -  Home of the Groundhog
#15767
1963 Globe Trotter
1971 Globe Trotter
http://users.penn.com/~mweimer/weimer.html