Re: Re: Running a bit hot,,,Question!

Thanks Mike---then one more question. Does it take a different cap to
allow water to go back into the radiator thru the overflow tube?After
the pressure has been reduced in the radiator................MO

On Jul 20, 9:05 pm, Mike & Deb <mdlefe...@xxxxxxxxxx> wrote:
> Steve,
> I did not want you to think of the overflow tank as being sealed because it isn't. It is only pressurized by the atmosphere. The reason it will push coolant back into the cooling system is the lower pressure created under the radiator cap as the system cools down. Coolant expands as temperature increases and the inverse occurs as it cools. This causes the lower pressure situation under the cap.
> Mike LeFevre
>
> On Jul 20, 2012,MO<micher@xxxxxxxxxxxxxxx> wrote:Thanks folks, Oft times I can't see the obvious cause it is to
> simple! 8-)
> Mike got me pretty well straightened out. I just couldn't see how as
> the radiator cap cooled a little bit and closed off the overflow, that
> water could get back into the radiator. I didn't know that the
> plastic tanks were air tight enough to hold pressure till the radiator
> cooled enough to contract the water volume. I hate water pukeing out
> the overflow- I will give the tank a go........................MO
> On Jul 19, 10:27 pm, Doug J <63sprtf...@xxxxxxxxx> wrote:
> > First trip to the drag strip about a hundred years ago,, in the inspection
> > line they said I needed a "catch can" for the radiator. Once it sunk in,,
> > an empty beer can and a piece of wire created an "overflow tank" that (at
> > that time) was NHRA acceptable. Probably "period correct" to this day !!!!
> > LOL
> >
> > Doug
> > '63 Sport Fury 'vert
> > (With a Grain Belt can overflow)
> >
> >
> >
> >
> >
> > On Thu, Jul 19, 2012 at 3:23 PM, Jim Altemose <jaltemo...@xxxxxxxxx> wrote:
> > > How much to you think it should hold? 16 ounces or so? Maybe I'll use an
> > > old whiskey bottle or something. Blatantly not correct but cool (no pun
> > > intended).
> >
> > > - Jim
> > > Jim Altemose, Long Island, NY
> > > '63 Polara 500 (Max Wedge)
> > > '63 Polara 500 (383)
> > > '65 Belvedere I (Street Wedge)
> > > '71 Bronco
> >
> > > On Thu, Jul 19, 2012 at 4:04 PM, Herb <zephyr9...@xxxxxxxxxxx> wrote:
> >
> > >> Well, keeping period correct will be difficult because it was after
> > >> 65 they went to an overflow jug, I think around 1969. Now re-purposing a
> > >> washer bottle or bag for an overflow is a possibility! Most wont catch it
> > >> I bet, just have the hose run low along the frame then up to the bottle.
> > >> Just a thought.
> >
> > >> Herb
> >
> > >> 1954 DeSoto Firedome Estate Wagon 276 HEMI
> > >> 1956 Plymouth Belvedere 361 4-Sale
> > >> 1959 Dodge Coronet 326 Poly
> > >> 1961 Plymouth Belvedere Custom Suburban Wagon 318 Poly
> > >> 1961 Dodge Dart Pioneer Wagon 318 Poly
> > >> 1963 Plymouth Fury 2D/HT 7.0L
> > >> 1963 Plymouth Sport Fury Convertible 361
> > >> 1970 Chrysler 300 Hurst 440
> > >> 1979 Dodge Aspen Sport Wagon 360
> > >> 1999 Durango SLT 5.9L
> > >> 2008 SRT-8 Magnum 6.1L
> > >> St. Louis, MO.
> >
> > >>http://1962to1965mopar.ornocar.com/mmo42009.html
> > >> &
> > >>http://www.1962to1965mopar.ornocar.com/mmo22012.html
> >
> > >> *-------Original Message-------*
> >
> > >> *From:* Jim Altemose <jaltemo...@xxxxxxxxx>
> > >> *Date:* 7/19/2012 2:25:34 PM
> > >> *To:*1962to1965mopars@xxxxxxxxxxxxxxxx
> > >> *Subject:* Re: Running a bit hot,,,Question!
> >
> > >> Bill,
> >
> > >> When did they start adding the overflow tank? Is there a good source
> > >> for these? I have a 63 Polara 500 and it probably be good for me to
> > >> add since I drive it a lot. I'd like to look as close to period
> > >> correct as possible, but it's not a show car and good performance is
> > >> more important to me.
> >
> > >> - Jim
> > >> Jim Altemose, Long Island, NY
> > >> '63 Polara 500 (Max Wedge)
> > >> '63 Polara 500 (383)
> > >> '65 Belvedere I (Street Wedge)
> > >> '71 Bronco
> >
> > >> On Sat, Jul 14, 2012 at 9:55 AM, Bill Watson <chryco...@xxxxxxxxx> wrote:
> > >> > Sounds like your cooling system is working fine.
> >
> > >> > It is normal for the engine to spew antifreeze into the overflow tank
> > >> > when you shut the car off, especially in hot weather. That is why it
> > >> > is there,
> >
> > >> > While the engine is running the coolant is picking up heat from the
> > >> > engine, circulating through the rad to dissipate the heat and go back
> > >> > into the engine. When you shut the engine off, the circulating stops
> > >> > and the cooling stops. That hot antifreeze has to go somewhere, so it
> > >> > goes into the overflow. When the engine cools down the antifreeze is
> > >> > drawn back into the radiator.
> >
> > >> > Before they had overflow tanks the hot antifreeze would exit via the
> > >> > overflow hose that ran from the rad cap and down the side of the
> > >> > radiator and pool on the ground. That is why it was important to
> > >> > check the level in the radiator often back then as you were loosing
> > >> > coolant virtually everytime you shut off a hot engine.
> >
> > >> > If your overflow is overflowing, then you do have a problem.
> >
> > >> > A 1971 440 should use a 16 psi rad cap and a 185 thermostat.
> >
> > >> > Bill
> > >> > Toronto, ON
> >
> > >> > On Sat, Jul 14, 2012 at 8:19 AM, Jay <krods...@xxxxxxxxx> wrote:
> > >> >> Hello to all,,Question!
> >
> > >> >> My 440's seem to be running a bit hot,,it's a 1971 and i was running a
> > >> 180
> > >> >> degree thermostat,and so just yesterday i changed it over to a 160
> > >> degree.
> > >> >> What is the best or proper thermostat to use on that 440.
> >
> > >> >> The radiator cap was a Stants 13 psi and i changed it over to a Mopar
> > >> 18 psi
> > >> >> that i hand as an extra.
> > >> >> It keeps blowing out antifreeze into the reserve tank every time i
> > >> park it
> > >> >> What is the best or proper radiator cap to use on a 440 of that year.
> >
> > >> >> Thanks,
> > >> >> Jay
> > >> >> 1965 727, B/B Coronet 500.
> >
> > >> >> --
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>
> ...
>
> read more »

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