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Username Post: Cool running???        (Topic#354215)
Andy4639 
Frequent Contributor
Posts: 1223

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
12-04-18 04:22 PM - Post#2753381    

I drove the 64 to work this morning at 5am when I left the house it was 28* outside. The car had been in the garage and I drive about 20 minutes to work.

The new radiator is doing a great job I guess and maybe even to good. The temp gauge never got over 150* the whole way. It had some heat but not what I'd say was great heat. The dash light didn't go out until about half way to work. That's at 55MPH no stop and go except for 2 stop signs.
It did basicly the same coming home but it was in the 40*'s on the way home.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 

Ecklers AutoMotive

IgnitionMan 
Valued Contributor
Posts: 3511

Reg: 04-15-05
12-04-18 08:19 PM - Post#2753415    
    In response to Andy4639

What info on engine, timing and cooling system setup?



 
kingkreeton 
"5th Year" Silver Supporting Member
Posts: 1213
kingkreeton
Loc: Houston TX
Reg: 04-15-11
12-04-18 11:54 PM - Post#2753423    
    In response to Andy4639

Have you changed anything recently?

Shane
64 Impala SS:
Chevy Performance 350HO
4 Speed Muncie

Proud member of Big Blue Nation, University of Kentucky Basketball. "Go Big Blue"


 
Andy4639 
Frequent Contributor
Posts: 1223

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
12-05-18 02:42 AM - Post#2753430    
    In response to kingkreeton

Nothing changed since I installed the radiator about year half ago. I put the shroud back on it this summer.

Motor stock 350 with a stock Chevy HEI big cap, power glide. Nothing fancy.

My buddie came over a few weeks ago and we set the timing 8* BTDC and fixed the electric choke and set the air screws on the carb.
It runs great cranks right up after 2 pumps on the gas pedal.
I wasn't posting to complain other than it being a little cool but I can handle that. I'm sure if I let it sit and warm up good before leaving it would get hotter.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
1963er 
Contributor
Posts: 276
1963er
Age: 68
Loc: Joppa, Md.
Reg: 12-20-15
12-05-18 04:15 AM - Post#2753437    
    In response to Andy4639

Install a 180 degree thermostat...



 
IgnitionMan 
Valued Contributor
Posts: 3511

Reg: 04-15-05
12-05-18 05:01 AM - Post#2753444    
    In response to Andy4639

Which stock GM large HEI, there are over 437 different curve packages for them?

Anything else in the cooling system changed, ran, pulley size, and what thermostat is in it, what coolant to tap water ratio???



 
japete92 
"4th Year" Silver Supporting Member
Posts: 1099
japete92
Loc: No. Virginia
Reg: 01-18-13
12-05-18 05:41 AM - Post#2753448    
    In response to 1963er

  • 1963er Said:
Install a 180 degree thermostat...



I agree. If the coolant gets to 180 before the thermostat allows full circulation, it likely will stay there (most get a little hotter while running). Aluminum heads? 190.

If you already have 180/190, verify it is not stuck open.

Pete



 
kingkreeton 
"5th Year" Silver Supporting Member
Posts: 1213
kingkreeton
Loc: Houston TX
Reg: 04-15-11
12-05-18 06:09 AM - Post#2753453    
    In response to Andy4639

Back in the day when I was learning how to tinker on cars, I had the water pump and manifold hoses backwards and my heat wouldn't work very well as a result. But yours sounds like the engine is not getting warm enough. Are you running electric fan/fans with that radiator?

Shane
64 Impala SS:
Chevy Performance 350HO
4 Speed Muncie

Proud member of Big Blue Nation, University of Kentucky Basketball. "Go Big Blue"


Edited by kingkreeton on 12-05-18 06:09 AM. Reason for edit: No reason given.

 
IgnitionMan 
Valued Contributor
Posts: 3511

Reg: 04-15-05
12-05-18 08:54 AM - Post#2753471    
    In response to IgnitionMan

I am also assuming the temperature gauge has been checked for its being accurate.



 
Andy4639 
Frequent Contributor
Posts: 1223

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
12-05-18 09:28 AM - Post#2753475    
    In response to IgnitionMan

Ya'll, there nothing wrong with the setup. It's fine. It just very efficient at keeping the motor cool when it's cold out side. It has 190* thermostat and it's working fine.
This was the only reason I posted it.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
junky 
Valued Contributor
Posts: 2756

Loc: Northeast CT
Reg: 06-27-10
12-05-18 01:19 PM - Post#2753500    
    In response to Andy4639

Cover half the radiator with a piece of cardboard. If it gets too hot, remove cardboard. Easy fix that I used in winters in New Hampshire back in 1962. Cardboard is fast, cheap, easily sourced, and instantly removable without any modifications. If it got wet or deteriorated, dispose of and install another piece.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
acardon 
Ultra Senior Member
Posts: 11108
acardon
Loc: DFW TEXAS
Reg: 03-25-05
12-05-18 01:54 PM - Post#2753508    
    In response to Andy4639

  • Quote:
It has 190* thermostat and it's working fine.



The thermostat is NOT working fine if it doesn't run at 190 degrees. The thermostat holds water in the block until it warms up to 190 degrees. Until then, the radiator has nothing to do with it. If there is no coolant flow, the engine will easily heat the coolant to 190, no matter how cold it is outside. Have you drilled any bypass holes in the thermostat? If not, it is stuck.
P.S. It's not good for an engine to run too cold, especially a EFI engine. The computer may not come out of closed loop to regulate fuel mixture.


Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


Edited by acardon on 12-05-18 01:57 PM. Reason for edit: No reason given.

 
IgnitionMan 
Valued Contributor
Posts: 3511

Reg: 04-15-05
12-05-18 02:22 PM - Post#2753516    
    In response to acardon

Don is on target, too cold, thermostat.



 
brokenspoke 
Poster
Posts: 63

Reg: 02-28-08
12-06-18 03:46 AM - Post#2753589    
    In response to acardon

^^^^^^what he said^^^^^



 
Andy4639 
Frequent Contributor
Posts: 1223

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
12-06-18 12:55 PM - Post#2753642    
    In response to brokenspoke

No it not stuck open. It's just pulling cold air through it to keep the temp down. The shroud is sealed so nothing goes around it.
It was 24* this morning and it was about the same maybe even less. How accurate is the gauge, well this summer when I used the heat gun on the motor it was less than 10* off.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
IgnitionMan 
Valued Contributor
Posts: 3511

Reg: 04-15-05
12-06-18 08:56 PM - Post#2753695    
    In response to Andy4639

So, there really isn't a problem, it is supposed to run that cold, so you never need air conditioning.



 
brokenspoke 
Poster
Posts: 63

Reg: 02-28-08
12-07-18 02:11 AM - Post#2753705    
    In response to IgnitionMan

Running under 190 degrees is damaging to your engine.....



 
TAT_2 
"17th Year" Silver Supporting Member, and Official CT Grim Reaper
Posts: 35479
TAT_2
Age: 65
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
12-07-18 04:53 AM - Post#2753710    
    In response to brokenspoke

  • brokenspoke Said:
Running under 190 degrees is damaging to your engine.....



YUP,OIL NOT NEARLY HOT ENUFF TO BURN OFF ANY CONDENSATION THAT DEVELOPS WITH SHORT TRIPS IN COLD WEATHER.


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Andy4639 
Frequent Contributor
Posts: 1223

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
12-07-18 04:57 AM - Post#2753712    
    In response to brokenspoke

So when you first crank your engine up and until it gets above 190* it's damaging your engine. I don't know about that but I do know it runs strong and it has good oil pressure.

I would assume if it took me a hr to drive to work it would be up to normal operating temp but for no further than I drive it never see it When it's this cold.

As far as the AC goes the motor running cold are hot has nothing to do with how cold the AC is. The only thing that keeps your vehicle cold is how much air you pull through the condenser for AC and the radiator for the motor, when it's hot outside. My AC runs 38* during the hottest part of the summer all day long sitting are moving. The temp gauge hovers right at 195/200*.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
japete92 
"4th Year" Silver Supporting Member
Posts: 1099
japete92
Loc: No. Virginia
Reg: 01-18-13
12-07-18 07:29 AM - Post#2753722    
    In response to Andy4639

A 190 degree thermostat begins to open (and allow the coolant to flow out of the block) when the coolant reaches 190 degrees. That may take about 5 minutes (or so).

I do not know if your gauge is accurate, but if your engine never gets to 190 (you say it takes 20 minutes to get where you are going), your thermostat is malfunctioning. It is NOT staying closed to 190. It is opening (or not shutting at all) and allowing flow into the radiator at some lower temp (150?).

Just trying to be helpful.

Pete



Edited by japete92 on 12-07-18 07:37 AM. Reason for edit: No reason given.

 
IgnitionMan 
Valued Contributor
Posts: 3511

Reg: 04-15-05
12-07-18 07:37 AM - Post#2753723    
    In response to Andy4639

It is getting a bit out of hand here, folks, a cast iron block/heads engine's optimal operating temp is 180 deg/F. Cast iron block/aluminum heads, 192/195 deg/F. And aluminum block/heads, 200/205 deg/F.

Now, if a cast iron block/head engine is running a 190 deg/F. thermostat, and 150 deg/F. run temperature, there IS a serious problem some place in the cooling system, and it just ain't right.

You guys take it from here, but I would choose to fix it. And, it doesn't matter what the outside temperature is, the cooling system just ain't working correctly.



 
Andy4639 
Frequent Contributor
Posts: 1223

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
12-07-18 11:57 AM - Post#2753753    
    In response to IgnitionMan

Ok.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
Stittville Ed 
Contributor
Posts: 123

Reg: 01-10-16
12-07-18 03:11 PM - Post#2753765    
    In response to Andy4639

A plus 1 on that :-)



 

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