Karl,
I put one of these on my 65 Coronet 500 30 years ago. You MUST use a sealed
system radiator cap that has the normal spring loaded pressure seal, AND a
seal to the rim of the radiator mouth. This second seal is what holds the
vacuum to pull the over-flowed coolant back into the radiator. Also, the
coolant tank must have a return hose that extends to the bottom where the
coolant is, otherwise the return hose is only sucking air back into the
radiator.
It is a good idea after a hard run to always let the engine run a couple of
minutes by low speed driving or idling to cool down the hot spots. This
helps to prevent warping of heads and valves, and carbonizing of the oil. On
aluminum head engines, boiling in the head area will cause erosion of the
aluminum.
Dave Homstad
56 Dodge D500
> -----Original Message-----
> From: karl peterson [SMTP:nitekatt@HOTMAIL.COM]
> Sent: Wednesday, March 29, 2000 12:11 AM
> To: L-FORWARDLOOK@LISTS.PSU.EDU
> Subject: [FWDLK] Followup on coolant recovery kit
>
> Ok, got my coolant recovery kit installed. Took the car out for a hi
> speed
> spin on the interstate and got it plenty warm.
>
> After shutting down the engine, the temperature flashed (because of the
> water being in static contact with the hot block) and caused some coolant
> to
> blow out the overflow tube, right into the overflow container. Slick!
>
> Only problem is when the engine cooled sufficiently, the coolant did not
> go
> back into the radiator. I am not sure what I need to correct this.
>
> Some tell me, the radiator neck is not designed properly for the new style
> "closed system" radiator caps, which allow for the overflow coolant to
> migrate back into the radiator via the vacuum created by the cooling
> liquid.
> The parts guys around here are just kids and have no idea what the
> radiator looks like on a 64. They thought ALL radiators were the "closed"
> type, hahaha.
>
> So, short of completely changing radiators, (which is NOT an option), is
> there a way to make the existing system act like a closed system and have
> the captured coolant return to the radiator after cooldown?
>
> Karl
>
> PS, to answer a couple queries, the current radiator cap is a 14 lb with
> lever-operated pressure release. The car is a 1964 Fury with a 68 440 in
> it
> and I believe a stock radiator (completely refurbished), which came with
> the
> Fury and the original 383 motor.
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