> Anyway, tonight I took the oil filler cap off of the valve cover
> with the car running and there is a steady stream of air blowing out (more
> than the heater fan puts out...).
Some air is normal, after all the rings are not perfect. However more than the
heater fan sounds like too much to me.
> I am thinking that I might be pressurizing my
> block which would cause oil to ooze out places it shouldn't.
It definitely will.
> Still thinking of upgrading to a TR4 valve cover setup with PCV instead
> of the breather tube. Maybe it is a better setup for a daily driver.
Well maybe ... but the TR4A setup didn't flow much air either. If you're having
a problem with blow-by, I think you'll find that the TR3 setup relieves more of
Don't forget, at full throttle there is no manifold vacuum, so the TR4A setup
reduces to a 3/8" id tube, rather than the 3/4" or so the TR3 has. (The TR4 had
no vacuum connection, the tube from the rocker cover just went to the air
Might make more sense to have the rings out for a look-see. Not too hard, even
with the engine in the car.
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