----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----
>Are the baffles that sensitive?
Yes they are. Not only do they maintain high pressure air above the
cyclinders, they also create a low pressure zone below the cyclinders.
The whole system is just like your coupe gas tanks. The fuel will flow
into
the one with less gas. When they are even, the fuel quits flowing. That
is
probably what is happening to your engine.
Air goes to the path of lest resistance. If resistance is equal the flow
stops.
Gaps in the system allows air to go over the top of the baffles, before it
goes over the cylinder head. If it goes over top of the baffles the
bottom
of the cowl becomes pressurized. When the bottom pressure goes up, it
takes
more force to push the air over the cylinder heads. (You should always
have
Positive pressure on top, Negative on bottom. This results in the air
going
over the cylinders being forced from the top and pulled down from the
bottom).
There should be NO air entering the top of the engine that doesn't cool
the
cylinders.
There should be NO air entering the bottom of the cowl unless it has
cooled
something getting there.
In addition to fixing the baffles (it won't hurt even if it doesn't solve
the problem), make sure that the seal around the air filter is also good
and
the cowl fits snug in the front when closed.
You don't have a lot of air to play with:
There are two inlets for the air above the cylinders.
One inlet for air below the cylinders (to cool the oil slump).
The inlet for the slump cooling will about cancel one of the cylinder
inlets.
The air above the cylinder is also used for Carb Heat, Cabin Heat and
Gen cooling.
So you really don't have a lot of air to waste.
Fix the baffles and tell us what happened.
Jack
==================================================================
TO UNSUBSCRIBE go to: http://ercoupers.com/lists.htm
<<attachment: winmail.dat>>
