Re: Baby food jar lids. Gerber

"Joey Tribiani" <Joey@xxxxxxxxx> wrote in
AHiXf.7140$t22.7104@dukeread08:">news:AHiXf.7140$t22.7104@dukeread08:


"A Veteran for Peace" <georgek@xxxxxxxxxxxxx> wrote in message
news:georgek-7BCE8F.11195431032006@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
as summer arrives I replace the clean air tubes with baby food jar
lids/ they fits nice n tight over the ducts . conserveing the cooling
air.

--
I'm unfettered,unbound,triumphant,glorious& splendid


please don't suggest others do this..your car is yours to do with the
way you see fit, however if you don't remove your heater boxes and
replace them with j-tubes at the same time you are running the risk of
burned exhaust valves and cracked heads.....heat exchangers are
designed to scavenge heat from the exhaust that would normally be
pushed out the tailpipes...this heat is used to heat the passenger
compartment...heat exchangers are purpose designed and they do their
job....if there is no airflow through them(there is flow even when the
heat is "off", to vent excess heat) they will still do their
job....transfer heat....no airflow, means the heat is transfered to
exhaust ports and also radiates upward to heat the entire head....what
seems like a good idea, to give "extra" cooling air to the engine, is
actually counter-productive....Jake Raby even made a statement on this
after his cooling system tests....look for it at shop talk forums...



Had to think a bit on this - of course all I've worked with are T4bus
motors. The airflow through the heat exchangers is "always on" - the
heater boxes merely divert it to either the cabin or the outside. That
said, I used to disconnect my booster fan from time to time and that
would cause overheating unless I plugged the holes in the cooling tin
where the booster hooked up, as cooling air would escape through those
holes. It was very significant on the bus motor - I had the 4 cyl
headtemp gauge to prove it - years ago, so don't ask me numbers.

I would argue that airflow designed into the heat exchangers should be
left untampered with. If flow to the cabin is the issue, deal with it at
the heater boxes.

--
-BaH
Dave Pearson
79 Bus w/ Subey 2.2
74 Bus Project
.

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