Re: {Chrysler 300} The Original Problem

Mike

On Friday, July 14, 2023, 6:15 AM, Jean-Yves Chouinard <jymopar@xxxxxxxxxxx> wrote:

Hey, good job Bill!

As mentioned, mine has a 2 o'clock pipe position and the car has a built date of May 25th.

Mine is a 3 speed manual car...

It will be interesting to find out more info on these copper pipe cars.

Thanks Bill.

JYves.

From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> on behalf of william ELDER <belder@xxxxxxxxx>
Sent: July 13, 2023 10:02 PM
To: 'Chrysler 300 Club International' <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} The Original Problem

Guys:

Somehow, my original problem concerning engines with the copper heat tubes under the rams got side tracked. So here is the original problem, which concerns engines built with these pipes. The driver’s side pipe and the orientation of that pipe at the rear of the engine has two different configurations. George Hiller and I have pipes, where the segment of the pipe that connects to the heater box is straight up and down, 12 o-clock. Jean-Yves’ engine and Bob Merritt’s engine have pipes where the rear segment of the pipe points towards the brake booster, say the two o-clock position. The straight up and down position creates a problem. The heater hose must immediately bend 90 degrees then do a loop up to the heater box. This results in restricted coolant flow, because the hose can’t achieve these bends without being pinched off.

So who can say why there are two versions, was there an engineering change, was there a vendor change? It’s obvious that the pipes that point towards the brake booster are the better version. Here is my solution to the problem. I purchased a hose with a preformed 90 degree bend and a brass connector and used these pieces to connect to a piece of 5/8 power steering return line. Even with the brass connector heading close to the correct direction, I found that the regular heater hose wanted to flatten out, while bending up to the heater box. The power steering return hose has a more robust side wall and resists flattening out and pinching off. If you are interested in this subject, could you please look at the orientation of the driver’s side pipe on your car, let me know if it is 12 or 2 and your engine build date. Mine is March 22.

If your engine did not come with the copper pipes, I would defer to the hose routing on Gill’s convertible. See the pictures that Noel posted today.

300ly

bill

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