Dave in VA
"5th Year" Gold Supporting Member
Posts: 622

Age: 74
Loc: SW Virginia, USA
Reg: 03-11-18
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01-23-25 10:25 AM - Post#2877325
Mine is on the top hose, the one from the heat valve to the tstat housing. Is this the return? Deluxe heater.
If so, my plan is to choke that valve down to slow the flow thru the system to extract more heat out of the coil. It doesn't blow very warm at 27*...
"Knowledge is Good" -- Emil Faber
U S Navy MM2 1970-75 USS Canisteo AO-99, USS Miller DE-1091 (The Champagne of Ships)
1950 Styleline Deluxe 2dr, mostly stock, driver quality...new to me 3/18
2017 Silverado LTZ 6.2
2020 Blazer Premier
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Edited by Dave in VA on 01-23-25 10:25 AM. Reason for edit: No reason given.
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Shepherd
Valued Contributor
Posts: 3682
Loc: Lake George, NY
Reg: 11-11-15
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01-23-25 11:41 AM - Post#2877327
In response to Dave in VA
Usually the return is the one back to the water pump.
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drtyler
"10th Year" Gold Supporting Member
Posts: 822
Loc: Georgia
Reg: 05-06-10
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01-23-25 01:51 PM - Post#2877330
In response to Shepherd
The water is a certain temp, whether its flowing or not. Wouldn't the heater core & water inside cool off quicker if the flow is reduced?
What is your thermostat temp?
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RAM_51
"8th Year" Silver Supporting Member
Posts: 6799

Loc: Yakima, WA. USA
Reg: 12-28-02
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01-23-25 02:10 PM - Post#2877331
In response to Dave in VA
This is the hose routing for the 49-50 Air Flow Heater (51-52 would be the same). I would think choking the flow would reduce the amount of hot water making it to the heater core. My thought is that you have a thermostat issue. When the heater was installed, it was done in conjuction with changing out the theromstat to a 180ºF unit that was furnished with the accessory heater installation kit.
1951 Fleetline Preservation
'51 Fleetline DeLuxe, POWERglide 2-DR (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Faded Red)
'50 Styleline DeLuxe 4-DR (Mist Green) |
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53sd
Contributor
Posts: 223
Reg: 12-08-08
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01-23-25 03:11 PM - Post#2877333
In response to Dave in VA
The hot coolant comes from/Out the hose by the thermostat
You want that hose to go to the bottom of the heater core
This will fill the core completely for the best heat production
Slowing down the fluid is not going in the right direction
The core might be scaled up inside
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Dave in VA
"5th Year" Gold Supporting Member
Posts: 622

Age: 74
Loc: SW Virginia, USA
Reg: 03-11-18
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01-23-25 04:30 PM - Post#2877334
In response to 53sd
I guess that my thinking was backwards. Everything is hooked up as illustrated in RAM's drawings. The T-stat is 180.
Scale in the heater core is a good possibility. I've looked at the front of the core with a snake camera, and it appears to be free of debris.
The heater blows warm, at best.
"Knowledge is Good" -- Emil Faber
U S Navy MM2 1970-75 USS Canisteo AO-99, USS Miller DE-1091 (The Champagne of Ships)
1950 Styleline Deluxe 2dr, mostly stock, driver quality...new to me 3/18
2017 Silverado LTZ 6.2
2020 Blazer Premier
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bobb
Super Senior Member
Posts: 6916
Loc: paradise
Reg: 09-05-03
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02-02-25 09:54 AM - Post#2877576
In response to Dave in VA
what is your engine temp? you may need a hotter stat.
70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails. |
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Dave in VA
"5th Year" Gold Supporting Member
Posts: 622

Age: 74
Loc: SW Virginia, USA
Reg: 03-11-18
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02-02-25 04:13 PM - Post#2877592
In response to bobb
This is where the needle sits during normal operation. Just on top of the middle mark. If I stop and let it idle, it will rise a little bit. It's never got to the hot mark or overheated...
"Knowledge is Good" -- Emil Faber
U S Navy MM2 1970-75 USS Canisteo AO-99, USS Miller DE-1091 (The Champagne of Ships)
1950 Styleline Deluxe 2dr, mostly stock, driver quality...new to me 3/18
2017 Silverado LTZ 6.2
2020 Blazer Premier
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Edited by Dave in VA on 02-02-25 04:18 PM. Reason for edit: No reason given.
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my69
Contributor
Posts: 819

Age: 64
Loc: Ct,USA
Reg: 04-19-03
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02-04-25 03:28 PM - Post#2877629
In response to Dave in VA
That is normal looking to me, both of my 53 235s temp gauge is right there. It does climb while sitting at a light, but once you start moving again , the needle sits just above half.
53 210 4 door 235/PG
53 Bel-Air Sport Coupe
68 Impala SS Convertible 327/TH400 |
Edited by my69 on 02-04-25 03:29 PM. Reason for edit: No reason given.
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53sd
Contributor
Posts: 223
Reg: 12-08-08
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02-04-25 06:13 PM - Post#2877631
In response to my69
Nice dash pad! Home brewed?
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Dave in VA
"5th Year" Gold Supporting Member
Posts: 622

Age: 74
Loc: SW Virginia, USA
Reg: 03-11-18
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02-05-25 05:41 AM - Post#2877640
In response to 53sd
Nice dash pad! Home brewed?
It was done by a previous owner. Probably when the interior was done...
 Attachment: 4.jpg (127.29 KB) 14 View(s)
"Knowledge is Good" -- Emil Faber
U S Navy MM2 1970-75 USS Canisteo AO-99, USS Miller DE-1091 (The Champagne of Ships)
1950 Styleline Deluxe 2dr, mostly stock, driver quality...new to me 3/18
2017 Silverado LTZ 6.2
2020 Blazer Premier
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RAM_51
"8th Year" Silver Supporting Member
Posts: 6799

Loc: Yakima, WA. USA
Reg: 12-28-02
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02-06-25 10:40 AM - Post#2877674
In response to Dave in VA
You mentioned you are running the recommended higher tempurature thermostat. I wonder if you are also using a pressure cap on the radiator.
1951 Fleetline Preservation
'51 Fleetline DeLuxe, POWERglide 2-DR (Fathom Green)
'51 Styleline Special BUSINESS COUPE (Shadow Gray)
'53 6500 Dump Bed (Faded Red)
'50 Styleline DeLuxe 4-DR (Mist Green) |
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Dave in VA
"5th Year" Gold Supporting Member
Posts: 622

Age: 74
Loc: SW Virginia, USA
Reg: 03-11-18
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02-07-25 07:11 AM - Post#2877692
In response to RAM_51
You mentioned you are running the recommended higher tempurature thermostat. I wonder if you are also using a pressure cap on the radiator.
7lb, I believe...
"Knowledge is Good" -- Emil Faber
U S Navy MM2 1970-75 USS Canisteo AO-99, USS Miller DE-1091 (The Champagne of Ships)
1950 Styleline Deluxe 2dr, mostly stock, driver quality...new to me 3/18
2017 Silverado LTZ 6.2
2020 Blazer Premier
|
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