Overheating problem do I need a better Electric Fans

[motorhead]

I have a buddy that had the same problem. He tried 2 new stats from napa,then electric fan,still ran hot.I read an article about stats sticking shut from engine vibration.I ordered a hp hi flow stat from summit,problem solved.Took the electric fan back off.

 

[CRAIGXLH1]

Hi GROUP while I changed to the Napa 180° premium thermostat and put a coil in the bottom radiator hose. I also double check the fan direction and it's pulling towards the engine.
I used 14 gauge galvanized wire probably 30 to 40 feet coil on 1 1/2 PVC tubing and threaded it into the radiator hose hose is solid no chance of collapsing. I took the car for a ride or 3 to 4 mile on the highway it got up to about 200° as soon as I got back in town it started climbing again in about 1 mile to get to my house it went up to 240° before parking it. check with a laser thermometer at thermostat housing housing it was at 240° my gauges in my car I right. The headers were at 340°. The only thing I got left are those electrical fans. I think Or least somebody has another suggestion for me. I asked about these fans but did not get any reply back on them. Perma-Cool Standard Electric Fans 19122 from Summit $81.92 Electric Fan, Single, 12 in. Diameter, Reversible, 2,300 cfm, Black, Plastic, Kit Amp Draw: 6.00 amps Maximum Fan RPM: 3,000 rpm
and thank you for all your help Craig

 

[Dako]

In your initial post you stated, "I bought this car about 4 years ago the been running hot up to last year the car been running between 200-215 degree the radiator..."

As someone said earlier, you may have an underlying issue. If I take our statement above as the motor has never been apart, your heating issue could be with poor water flow (blockage) within the engine block or heads themselves. Scale, crud, etc.

 

[CRAIGXLH1]

hi group I want to know if radiator support is causing to overheat it looks like my GTX came with a 22 inch radiator it has a 26 inch radiator it when I bought it I checked it today it has 3 inches on the right side and one inch on the left side covering the radiator it's off center because of the battery box. I see somebody else cut the radiator support cutoff wheel like I said it's been overheat since I owned it for four years last four years it's been running about 200-to 210° in this year after making so many changes in the running to 240° plus. Also I can see the guys point about coolant system in the engine being clogged it been 16 years since it been a part. Also somebody wanted know at the engine was ever a part. I found receipts for the engine more parts and machine work done 8/97 for about $2000 but I'm not positive this was the last machine work done or a different engine was put in since then. The guy I bought it from the original owner it has supposedly 26,000 original miles. But he told me most of the miles were from the drag strip. But the guy I had bought it from didn't seem to know much about cars. I still think electric fans that came with the radiator are junk I've been looking at two different electric fans from Summit's I would like to know what you guys think of these two fans and also what you think about cutting the radiator frame. Here are the specifications on these two fans.
Perma-Cool Standard Electric Fans 19122 from Summit $81.92 Electric Fan, Single, 12 in. Diameter, Reversible, 2,300 cfm, Black, Plastic, Kit Amp Draw: 6.00 amps Maximum Fan RPM: 3,000 rpm

Be Cool 75080 - Be Cool Electric Fans $107.96
Maximum Fan CFM: 1,230 cfm
Fan Quantity: Single
Fan Diameter (in): 12.000 in.
Height (in): 12.000 in.
Width (in): 12.000 in.
Thickness (in): 2.480 in.
Number of Blades: 10 blades
Amp Draw: 11.80 amps
Puller Style

 

[1948 santa]

Going back to basics have you ever checked the radiator cap holding at least 14# of pressure,secondly when going down the highway at speed a fan is not really needed only when traveling slower speeds.

 

[CRAIGXLH1]

Yes I did check the radiator caps my old one is it's a 15 pound Radiator cap checked it with a pressure tester it's holding at 17 pounds The radiator cap they came with the radiator was only 14 pounds holding at 16 pounds thank you for asking Craig i recheck them

 

[bigblock]

When the engine is hot and running...Is the lower radiator hose hot? Or cool?

 

[CRAIGXLH1]

Hi big block I never checked the lower radiator hose while running today I took the radiator out so I can't check it right now I'm debating to cut the radiator frame also I needed to take the radiator out if I'm going to change electric fans. Also I wanted to check if I could use other shroud with my old mechanical fan I found out it will not work I'm a champion radiator old radiator has six studs in the champion radiator frame is 1- 2 inches wider the only way I could use it is to use duct tape when Not going to do. Aluminum shroud is held on with 14 sheet metal screws. So I going to stay with 2 12 inch electric fans When I get it back together is the hose supposed to be hot or cold. Thank you big block I'm going to have to wait till I get it back together. Anymore suggestions would be great from you guys thank you again Craig

 

[dodge41969]

What water pump pulley are you running?. I experimented years ago with pulley sizes on my Coronet, and found the car ran hot around town with the big non-a/c water pump pulley...but when I swapped to a smaller one, (a 6" one from a collection of pulley's I had), the temp dropped 15 degrees around town.
The 440 also runs a 26" radiator with the 4 row Hi-efficiency core and the factory shroud, a 7 blade Flex-A-Lite fan...rated to 8,000 rpm, a Mr.Gasket 160 degree thermostat, the water pump is a factory a/c deal (about 15 years old).
The car also runs 3.91s and is cruised regularly at 3500-3800 on the freeway. Living in L.A. there's traffic everywhere...the car rarely gets to 190 degrees. The pic of the temp gauge is from today...the thick line to the right of 180 is 180 degrees and the thin one to the left is 170 degrees...this is after getting off of the freeway, (it's in the 80's today).
Forgot to ask: what crank pulley are you running?, are you running an underdrive set-up?, it will for sure run warmer then.

 

[CRAIGXLH1]

I just went out and took off the water pump pulley OD of the pulley looks like about 6 3/4 inches I also put in put on a Summit Racing SUM-312317 - Water Pump, Mechanical, High-Volume, Iron pump for the picture of my old water pump

 

[dodge41969]

Looks like that fan/shroud set-up blocks a lot of air flow through the core, (while driving)...maybe even trap hot air inside the shroud. Have you tried taking off the fans/shroud, and putting on a mechanical fan just to see if there was any change?. (I know you'd need a shroud for the mechanical fan to make it the most efficient). I'd probably try that first, at least to see if you're going in the right (or wrong?) direction.

I just went out and took off the water pump pulley OD of the pulley looks like about 6 3/4 inches I also put in put on a Summit Racing SUM-312317 - Water Pump, Mechanical, High-Volume, Iron pump for the picture of my old water pumpView attachment 121409View attachment 121410View attachment 121411

 

[Crusty]

Just a few things that I wanted to point out. I didn't read everything printed on this issue so if it has already brought up then sorry.
First thing, did you check the clearance between the end of the water pump housing and the impeller? it shouldn't be very much.
The second thing is I don't see the rubber strip that runs along the top of the rad cradle. With those fans running that would be a hell of alot of air flow.
You draw air in through the rad but if there isn't much room for the air to escape the engine bay round the exhaust by the lower firewall it sort of stops there.
The fans keep trying to draw air. Then they start to pull air from the engine bay over the top of the rad cradle and back through the rads. It just becomes a never ending circle as the air keeps getting hotter. This will happen I had it on a '36
Is there any chance that the trans is making the water hot? This could just be a bunch of small things.
Good Luck
Crusty

 

[Dennis H]

I still say factory copper with shroud and thermal-clutch fan. 180 superstat. If not that, then it is the internal scales and clogging mentioned earlier.

 

[CRAIGXLH1]

I forgot to check check the crank pulley is 6.42 waterpump pulley is 6.872. Also I did change two years ago the crank pulley to put power steering back on the old aluminum crank pulley was 5 inches. The transmission could be causing heat I put a 3000 stall converter and it two years ago also rebuilt the automatic transmission and modified with the shift kit. I included photos of the two crankshaft pulleys and the waterpump Pulley. Should I go to smaller waterpump Pulley? Thank you group might be getting somewhere now

 

[dodge41969]

I've had good luck with the smaller water pump pulley, (like the one in the picture I posted). Have you seen some of the factory a/c water pump pulleys?,(not sure what size they are) they are really small and some use an adjustable idler pulley for belt tension,and only run that one belt from the crank to the water pump pulley to the tensioner.A friend of mine has adapted those pulley set ups to his stroker 440's and won't use anything else.

I forgot to check check the crank pulley is 6.42 waterpump pulley is 6.872. Also I did change two years ago the crank pulley to put power steering back on the old aluminum crank pulley was 5 inches. The transmission could be causing heat I put a 3000 stall converter and it two years ago also rebuilt the automatic transmission and modified with the shift kit. I included photos of the two crankshaft pulleys and the waterpump Pulley. Should I go to smaller waterpump Pulley? Thank you group might be getting somewhere now View attachment 121430

 

[CRAIGXLH1]

UPDATE on my coolant problem it finally fixed i think the problem was those cheap fans that came with champion radiator and shroud I cut out the radiator frame to fit the 26 inch radiator maybe I didn't do that. I put in 2 12 inch Be Cool Electric Fans the sticker on the fans say there spal fans fron italy. I have Napa Superstat. 180 the car stay at 180 degree for 20 mile on the highway in the city stop & go traffic. it about 85 degrees and humid today. this is coolest since I bought this car 4 years
Napa Superstat. 180
spal fans


Be Cool 75080 - Be Cool Electric Fans $107.96
Maximum Fan CFM: 1,230 cfm
Fan Quantity: Single

 

[bigmanjbmopar]

Good to hear seeing this late but that last set you had looked like it was just blocking air to the radiator. I have a flex fan 180° stat and a 14" pusher fan on a relay set to 210° for traffic. works well even on 110° days. good luck hope it holds for ya.