AuthorTopic: Over Heating ?  (Read 13453 times)

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Offline oldskool49

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Over Heating ?
« on: March 15, 2015, 11:12:28 AM »
Well Blue has decided that I need a new head scratcher. Here about 2 weeks ago the Sun Temp gauge would go up to 180, her normal operating temp. Then it would jump up to 210+. Well I have changed out the thermostat, temp sending unit, radiator cap and just yesterday the temp gauge. Well the problem still exists. And when I turn on the electric fan it jumps up more.
I have a actron temp reader and the other day the gauge read 210, I opened the hood and I could put my hands on the top radiator hose and on the top tank. With the reader I got the following : top rad. hose 122, tank 112 and heads 166. So I know that she is not overheating.

Any suggestions ? leads ? something that I over looked ?

And I am going to get her some new wires. A 6 circuit fuse panel with 9 wires feeding not good.
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Offline obama

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Re: Over Heating ?
« Reply #1 on: March 15, 2015, 04:17:50 PM »
Air in radiator, she needs to be "burped"
cap off, run car keep filling with water as needed, let warm up so you can see the water running (thermostat open) heater on full, and fill as needed. when thats done, check overflow tank/lines for your reserve, again add water so it can draw back in as needed.

if that doesn't work we look at other stuff.

Offline Rubberhead

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Re: Over Heating ?
« Reply #2 on: March 15, 2015, 06:05:47 PM »
Miraclepieco had a similar problem but I'm not sure what his fix was - miraclepieco, what was it???

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Re: Over Heating ?
« Reply #3 on: March 15, 2015, 09:31:19 PM »

Could there be a bad ground somewhere in the gauge wiring? The clue is that it jumps higher when you turn on the fan, putting more load on the system.


Offline obama

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Re: Over Heating ?
« Reply #4 on: March 16, 2015, 09:48:43 AM »
Give us an update Oldskool.
might add, hose temp. will be lower with no water flowing thru them, then jump when the water comes thru.

Offline oldskool49

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Re: Over Heating ?
« Reply #5 on: March 16, 2015, 11:11:08 AM »
Thanks for the input guy's. The bad ground could very well be. The factory circuit is just 6 fuse'e. And I am feeding 9 leads off of that. I am going to get her re-wired with a 12 circuit. And with the ground I think that I noticed 2 items grounded together. It is a rats nest under the dash.

I will try to water the water obama and see if that is part of the problem.
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Offline oldskool49

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Re: Over Heating ?
« Reply #6 on: March 16, 2015, 09:32:24 PM »
Well I ran her with the heater blasting, and it was 87 outside temp, anyway ran her with the cap off and the temp on the gauge climbed. The coolant was flowing freely. I guess that I can pull the thermostat. I will be getting the wiring done hopefully  next week.


Damn this is bugging me. And it is prob. something small and easy
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Offline obama

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Re: Over Heating ?
« Reply #7 on: March 16, 2015, 10:23:38 PM »
I assume it didnt need much water added during the test (with heater on full)  If the waters flowing real good, the thermostat if fine, ( it opens) address electrical, check water pump for no wiggle, then I might start to look at blocked radiator.

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Re: Over Heating ?
« Reply #8 on: March 16, 2015, 10:29:08 PM »
Starting to sound electrical to me, you might try running a fused lead, and real good ground from the battery direct to the fan with no other wires to it, just leave it "on" try again and see what happens.

Offline oldskool49

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Re: Over Heating ?
« Reply #9 on: March 17, 2015, 10:55:32 AM »
Starting to sound electrical to me, you might try running a fused lead, and real good ground from the battery direct to the fan with no other wires to it, just leave it "on" try again and see what happens.


My thinking all along has been electrical. As for the radiator that I feel is good.  Even though I replaced it 8 year's ago. But I will try the fan ground direct.
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Offline oldskool49

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Re: Over Heating ?
« Reply #10 on: March 20, 2015, 09:10:55 AM »
Well next week I will find out how much of the problem is related to the electrical wiring. Going to get a new harness installed. Then I will pull the radiator and have it cleaned. If this does not take care of the problem then I will have to look into it being the head gaskets. But she does not exhibit any of the tell tail signs of a bad head gasket. 
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Offline obama

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Re: Over Heating ?
« Reply #11 on: March 21, 2015, 12:33:41 AM »
Might be "chasing your tail" as far as radiator and head gaskets goes.
Answer the electric fan question first, then on from there, unless you have a "milky" water in oil thing going on.
Did you direct wire the fan and try it, or are you going to hold out hope for a harness fix.

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Re: Over Heating ?
« Reply #12 on: March 21, 2015, 12:50:02 AM »
When they do your wiring, have them run two heavy duty ground wires, one from the engine (or trans) to the frame and one from the body to the frame. Clean off all the dirt and rust where they attach.

Even if that doesn't solve your temperature problem, it's always crucial to have good wiring!

Offline oldskool49

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Re: Over Heating ?
« Reply #13 on: March 21, 2015, 06:38:23 AM »
That I will, Thanks.

I am hoping that the big problem is the wiring. 1 hint, turn on electric fan and watch the needle climb.
But after the re-wire I am going to pull the radiator and have it cleaned. Unless I can get them to let me do it while in their shop ? Which would make it easier on me. Both are in Salina and about 3 miles apart. Where as it is 28 miles one way for me.
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Offline hotwheels

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Re: Over Heating ?
« Reply #14 on: March 23, 2015, 04:38:59 AM »
Did you get it figured out?
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Offline oldskool49

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Re: Over Heating ?
« Reply #15 on: March 23, 2015, 05:33:14 AM »
Did you get it figured out?


No. Still trying to figure it out.  The oil looks like it need's to be changed, but other than that not a hint. I am thinking of pulling the thermostat and seeing what happens then.
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Offline oldskool49

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Re: Over Heating ?
« Reply #16 on: March 23, 2015, 05:38:27 AM »
And this is the mess that is going to be gone by tomorrow. I should have her back home by Wednesday, Thursday at the latest.
« Last Edit: March 23, 2015, 05:40:08 AM by oldskool49 »
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Offline oldskool49

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Re: Over Heating ?
« Reply #17 on: March 25, 2015, 10:04:45 PM »
Can we say out with the old/bad and in with the new ?

Anyway luck was on my side that it didn't catch fire
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Offline just old

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Re: Over Heating ?
« Reply #18 on: March 26, 2015, 04:35:14 AM »
I started wiring my 34 and have what looks like the same ball of wire as you do on the floor . it has been interesting .

Offline hotwheels

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Re: Over Heating ?
« Reply #19 on: March 26, 2015, 04:41:59 AM »
LOL, wiring is where allot of people give up on their builds. Just be patient and it will come together......If you get frustrated, just walk away for a little bit. You can do it..
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Offline oldskool49

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Re: Over Heating ?
« Reply #20 on: March 26, 2015, 11:13:08 AM »
Yep, very interesting  travel. As you know I have a lot of time. It is coming along and almost there.

But then I did have to have a good boy treat.... ;D
« Last Edit: March 26, 2015, 11:15:20 AM by oldskool49 »
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Offline obama

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Re: Over Heating ?
« Reply #21 on: March 26, 2015, 01:57:27 PM »
That's a lot better looking than a bunch of wires, good luck.

Offline oldskool49

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Re: Over Heating ?
« Reply #22 on: March 26, 2015, 10:19:29 PM »
Well has things are going she should be out and about this weekend. I still need to pull the radiator, replace the fuel pump and replace the rear coil springs.

Fuel pump was great in the old 283, but not so in this 350. And she leans a bit on the drivers side.
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Offline lowboy

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Re: Over Heating ?
« Reply #23 on: March 27, 2015, 07:46:01 AM »
You'll be cruising soon ! I'm sure your ready after this winter
life is a ride where you slide into heaven sideways on 4 flats blown motor saying Thank you God what a ride!!!!!

Offline oldskool49

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Re: Over Heating ?
« Reply #24 on: March 27, 2015, 08:19:56 AM »
You'll be cruising soon ! I'm sure your ready after this winter

Aren't we all Brother, Aren't we ALL
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