I'm not sure that using the stock cap will allow for fluiff recovery from an
overflow bottle.
when I inspect my fluiff level it is always low. maybe a
little more than your description. but of course as water heats up it expands
and I'm assuming gets the filler neck pretty full'ish.
I have bought but not
yet fitted an overflow reservoir from a later MGB. they are made of brass and
painted black. I'm in the process of removing the paint and polishing to
bright finish.
my intent is to replace the stock cap with a TR4 oil filler
cap. then run a hose to the MGB reservoir and find a modern depth 4lb cap for
the reservoir.
hose clamps required of course.
ill let you know how this works
for me when I get it finished
Frank
________________________________
From: Gary Nafziger <nafzigerg@yahoo.com>
To: "triumphs@autox.team.net"
<triumphs@autox.team.net>
Sent: Sunday, August 25, 2013 2:56 PM
Subject: [TR]
cooling tr-3
Just a question. My tr-3 is running well but I have a
concern about cooling.
My guage doesn't show the correct temperature so I
don't have a good measure
of what's going on. I have an electric fan. I have
been measuring the temp
with a meat thermometer shoved between the fins to get
some idea and come up
with temps in the range of 190 to 210. These
measurements are taken after a
run with engine idling. I have a new 4lb.
radiator cap.
The last two drives
have resulted in puddles under the car
coming from the overflow bottle. The
bottle has a screw on lid so the fluid
must be fairly pressurized as its
coming through the lid (or maybe the push on
tube into the bottom of the
bottle although there is some liquid up around the
lid). After both runs I've
checked the fluid in the radiator and its down at
least an inch and
half.........almost the bottom of the radiator fill
resevoir.
My conclusion
is that some time during a drive (approx 25 miles)
the radiator is boiling and
pushing out fluid........or can it push out fluid
without boiling? At any
rate I'm assuming that when fluid is pushed
out........it later should be
sucked back into the radiator and thats not
happening. My overflow bottle was
also almost full after the cool down after
the last two drives .......when I
think it should be at normal level.
Any
thoughts or ideas?
gary n.
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