In a message dated 5/23/2007 7:56:27 A.M. Eastern Standard Time,
Roger.Sieling@telesistech.com writes:
Has anyone on the list experienced a dumb mistake like this, and can
that be the cause of my diminishing performance lap after lap? Over the
winter, everything was refreshed on the car. It had a new Lucas coil,
which is now become a Bosch Blue. The distributor is a late-model Lucas
from a Formula Ford builder.
Does anyone have any ideas what may have caused my slowly decreasing
power?
We once had a similar situation on a Mini Cooper race car. It would start
out fine and then after a lap or two would not pull past 6000 on any real long
straight. At shorter tracks it seemed OK. We went through everything several
times, never finding anything conclusive, suspecting weak valve springs or
something like that.
That winter the engine came out for a complete freshening of course. Also I
decided it was time to redo the fuel cell.
Part of that included new hoses, etc. For some reason I blew through the
vent line hose and it seemed blocked. High pressure air dislodged a Mud Dabber
nest. We never had another problem with that car.
Since then I check vent lines before each race and occasionally find another
nest.
Jack Woehrle
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