My car keeps over heating when I’m driving

-
67DodgeDart360

67DodgeDart360

Well-Known Member
Joined
Nov 8, 2015
Messages
367
Reaction score
90
Location
Maryland
My car keeps over heating when I’m driving. It’s a 360 with mild cam. I have a Electric fan. It’s a low profile fan because it’s a small spot. Do I need a bigger fan? Or different radiator?

1418B732-3B45-4D3F-8156-DD442E01B688.jpeg


FF9037C4-9BF4-44E4-BC2C-B538DEBF6FEF.jpeg


3FFE172F-BC75-469B-8B5A-3D025C81A182.jpeg


290F7C1B-0DB1-453A-876C-61F196169AE4.jpeg


AA35C527-CD3C-40F1-B7C8-D9CE760B0324.jpeg
 
Which direction does the fan spin when it's running? To me, that looks like you may have a "pusher" fan mounted in a "puller" location... Either way, you should have a proper shroud on the radiator. Are you running straight water, or 50/50 anti-freeze mix? What temp is your thermostat? We need info...
 
That doesn’t really tell us anything, just that it overheated. Do you have a temp gauge that is working? If so watch it and see where it runs hot. Could be different problems if it overheats at idle or running at 40 mph.

Your fan looks a little small, that could affect cooling at idle significantly.
 
Has the cam been installed correctly/degreed?
What's the timing advance set at?
Vacuum advance hooked up?
Fan rotating the wrong way?
Properly burped the system? Is the radiator top still the highest point in the cooling system?
 
upload_2021-4-7_17-6-8.jpeg
This is what I have its offset a bit. There is also a dual fan with shroud that some guys have used. Search Taurus Fan in heating and cooling thread. Did this problem just start. Is the fan a new install. Something like this may be better
upload_2021-4-7_17-6-8.jpeg
 
Did this problem just start. Is the fan a new install. Something like this may be better
 
Any crud or bubbles in the coolant. What PSI is that quickie cap. Thermostat installed, what temp?
 
Professor Fate said:
Which direction does the fan spin when it's running? To me, that looks like you may have a "pusher" fan mounted in a "puller" location... Either way, you should have a proper shroud on the radiator. Are you running straight water, or 50/50 anti-freeze mix? What temp is your thermostat? We need info...
Click to expand...
Mike69cuda said:
When does it overheat? Cruising or stoplights?
Click to expand...
The temperature
loganscuda said:
View attachment 1715719945 This is what I have its offset a bit. There is also a dual fan with shroud that some guys have used. Search Taurus Fan in heating and cooling thread. Did this problem just start. Is the fan a new install. Something like this may be betterView attachment 1715719945
Click to expand...
do you have a link to this fan?
 
At first glance, that radiator looks plenty big enough for your application.
As stated above;
1. Watch the temp. Does it just go up and keep going up or does it come back down when you get up over 30 mph?
2. is the fan pulling?
3. Do you have a good alternator? Good relay for the fan? If not, the fan may be operating with way less amps than required and not pulling enough air.
4. Radiator could be clogged.
5. Confident that your water pump is doing the job?
6. Confident that your thermostat is opening?
7. Regardless of the actual problem, for stop and go driving, you should get a shroud and get that fan off the radiator.
 
Not the dual fans. But I’ll look for part number for the single fan. It’s a 2 speed.
 
Please answer the question. When does it over heat? Does it over heat driving down the road? Does it over heat at a stop? Once it does over heat, does it cool back down?

These are important questions. Please answer them if you want help.
 
If it overheats at cruising speeds (40 mph or faster), it's usually a circulation issue or radiator issue. Usually a fan isn't even necessary when cruising over 40, unless you are pulling some long hills or overworking it. You need a clean block for good flow and a "sized per application" radiator that is flowing, and a water pump that's up to the task. Truth be told, you should be able to run a 160, or a 180, or even a 195 and not overheat at cruising speeds.
 
RustyRatRod said:
Please answer the question. When does it over heat? Does it over heat driving down the road? Does it over heat at a stop? Once it does over heat, does it cool back down?

These are important questions. Please answer them if you want help.
Click to expand...
It overheats when stop. It was cooling down when I was driving.
 
If it is overheating while stationary, that fan is likely the culprit. Ever if it was working really well, it on covers part of the radiator.
 
318willrun said:
If it overheats at cruising speeds (40 mph or faster), it's usually a circulation issue or radiator issue. Usually a fan isn't even necessary when cruising over 40, unless you are pulling some long hills or overworking it. You need a clean block for good flow and a "sized per application" radiator that is flowing, and a water pump that's up to the task. Truth be told, you should be able to run a 160, or a 180, or even a 195 and not overheat at cruising speeds.
Click to expand...
The factory temperature gauge is right dead in the middle when driving. When it’s stoped it goes pass the middle.
 
67DodgeDart360 said:
The factory temperature gauge is right dead in the middle when driving. When it’s stoped it goes pass the middle.
Click to expand...
Ok, if it's only at idle then it's a good chance it's your fan and shroud set up. time to upgrade
 
loganscuda said:
Not the dual fans. But I’ll look for part number for the single fan. It’s a 2 speed.
Click to expand...
Do you know the measurements on the single fan? It doesn’t show any measurements. I’m scared it’s too wide for the space I have.
 
67DodgeDart360 said:
It overheats when stop. It was cooling down when I was driving.
Click to expand...

Ok, that means the fan you have is not enough. No airflow when sitting static. Is that a 3 or 4 row radiator? You will have better cooling and more room for a real fan with a 2 row radiator with two 1.25" rows instead of 3 or 4 rows.
 
You must log in or register to reply here.
-

Back
Top