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RE: PCV valves and MGB's

To: sfisher@megatest.com
Subject: RE: PCV valves and MGB's
From: tooze@vinny.cecer.army.mil (Marcus Tooze)
Date: Wed, 9 Feb 94 14:06:55 CST
> 
> Sounds like what the manuals say.  It turns out that on the MG motors of
> the early '70s, the whole MOTOR is the PCV valve, more or less.  That is,
> there's a flow *from* the canister *to* the valve cover (on what John 
> Ross calls "system 2" PCV setups), through which vapors from the carb
> float bowls get pushed through the motor and out the breather and then
> get pushed back into the carbs (on S2 motors).
> 
Aaaah, this is where it gets more interesting. I have the tubes connected
from the carbs to the cannister, and there a a tube from the cannister
to the valve cover, and then theres the breather tube from the timing
cover to the carbs. GREAT...a complete circuit I here you all say...
well, not quite...because on my canister theres another tube which is
just cut off at the cannister (not blocked off though). I am
assuming that this is where the tube from the air pump went too.
All my emmissions stuff is gone, so does this giant PCV system not
work too well now and will it effect the way my motor runs??

Marcus


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