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Re: Still running hot in traffic with the new aluminum rad
[Re: Mopar73340]
#231900
02/22/09 10:54 AM
02/22/09 10:54 AM
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Joined: Apr 2008
Posts: 423
DFW Texas
AHall
OP
mopar
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OP
mopar
Joined: Apr 2008
Posts: 423
DFW Texas
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Quote:
When you go back to the stock setup, make sure the clutch is GOOD. You said it was doing the heating up at idle before you switched to the electric setup which indicates lack of air movemant at idle which almost always means the clutch was bad.
it didnt have a clutch previously.
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Re: Still running hot in traffic with the new aluminum rad
[Re: ahy]
#231905
02/22/09 11:47 AM
02/22/09 11:47 AM
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Joined: Apr 2008
Posts: 423
DFW Texas
AHall
OP
mopar
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OP
mopar
Joined: Apr 2008
Posts: 423
DFW Texas
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Quote:
A thermal clutch fan is a belt driven fan mounted on the water pump. It has a thermal clutch that engages the fan when hot and disengages when cool. Mancini sells them. Pic attached.
so this is the one id need?
http://chucker54.stores.yahoo.net/vifanpa.html
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Re: Still running hot in traffic with the new aluminum rad
[Re: stumpy]
#231906
02/22/09 11:47 AM
02/22/09 11:47 AM
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Joined: Apr 2008
Posts: 423
DFW Texas
AHall
OP
mopar
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OP
mopar
Joined: Apr 2008
Posts: 423
DFW Texas
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Quote:
Where are you in Texas? You check timing with a timing light with the distributor vacuum line disconnected and plugged.
Im in Flower Mound-5 mins north of DFW Airport.
No, I havent check timing or vacuum, im a newb still learning.
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Re: Still running hot in traffic with the new aluminum rad
[Re: stumpy]
#231908
02/22/09 11:51 AM
02/22/09 11:51 AM
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Joined: Apr 2008
Posts: 423
DFW Texas
AHall
OP
mopar
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OP
mopar
Joined: Apr 2008
Posts: 423
DFW Texas
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Quote:
Please read my reply to your other post before you go running off to spend money needlessly or for the wrong things.
I did and replied your post.
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Re: Still running hot in traffic with the new aluminum rad
[Re: AHall]
#231909
02/22/09 11:58 AM
02/22/09 11:58 AM
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Joined: Jan 2003
Posts: 32,920
Grand Prairie,Texas
stumpy
I Win
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I Win
Joined: Jan 2003
Posts: 32,920
Grand Prairie,Texas
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I live in Grand Prairie about 5 minutes south of the airport and would be glad to help you with and teach you the hands on stuff. I'm retired so I am available most days. I've been a mechanic for over 40 years so I believe I can get you straightened out. There is a large Mopar club that would be glad to have you join us. CowtownMopars. Here's a link to our site. http://www.cowtownmopars.com/. We average 150 members. We have a race team and a show team. We do cruises and picnics, hold a yearly toy run and generally do a lot of Mopar realated stuff. Our meetings are once a month at Billy Bob's in the stockyards. My email is, stumpy383@hotmail.com
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Re: Still running hot in traffic with the new aluminum rad
[Re: stumpy]
#231910
02/22/09 12:14 PM
02/22/09 12:14 PM
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Joined: Nov 2005
Posts: 522
Lenox Iowa
MMiller
mopar
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mopar
Joined: Nov 2005
Posts: 522
Lenox Iowa
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Get an infared thermometer. You can buy them for not much at any auto parts store. You can just point and get the temp of anything with this tool. It is money well spent, as you will use it more then you will ever believe. Start the car up in your driveway, let it idle. Check the upper radiator hose temp and the lower radiator hose temp. Let it warm up and keep checking the temp. The upper radiator hose should be warmer then the lower radiator hose. When the gauge in the dash shows "H" find the upper radiator hose temp and then report back to us. Hot water goes in the top of the rad and cooler water comes out the bottom.
This needs to be the first step, before any more money is spent.
FWIW, I run a warmed over 440 in a 4X4 truck with junkyard electric fan. Idling around the timber in the hot, humid midwest, and it does not over heat(90-100* days with 90-100% humidity). Pound it through the mud, idle down the trail, bounce it off 6000 rpms pulling on stuck trucks, and the electric fan cool it fine. I don't have a rad as nice as yours or shrouded like your fan is. You should be in good shape radiator wise, unless the t-stat is sticking, or the gauge is off. I strongly persuade you to troubleshoot before dumping more money.
Michael
93 W250 CTD getrag, Bosch 185 injectors, AFE air filter. Trailer puller, daily driver,
90 W250 CTD 727 with smokin 5" stacks. Off road truck
75 Dodge W200 440 4spd 4x4 locked front and rear, twin disc clutch, E85. Pulling truck
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Re: Still running hot in traffic with the new aluminum rad
[Re: MMiller]
#231911
02/22/09 12:57 PM
02/22/09 12:57 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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A lot of this has already been covered, but here goes.
Electric fan companies severely overate their products cooling abilities. Once they have run for a while they can severely reduce your voltage by draining the battery, making them run even slower. To keep up, you need an alternater that will do at least 85 amps AT IDLE. If your voltage is getting down to the 12 volt range, the fan capacity tanks huge, at you heat up very quickly.
The best setup I have found is the MP clutch fan with shroud, run at at AC waterpump speed (1.3 times engine speed) and I have a very hard time keeping the TT340 cool at low speeds. This setup works all the time without issue.
I have found that aluminum radiators tend to have much higher cooling capacity, but they require significantly more airflow to work. At idle, I found my old 4 core cooled better than the Griffin, until I greatly increased airflow. I also noticed that the Griffin would drop the temp back to thermostat much quicker than the 4 core once the car was moving.
I think you would be best with the original radiator, clutch fan, shroud, AC pulleys and pump speed, and the CORRECT waterpump for AC.
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Re: Still running hot in traffic with the new aluminum rad
[Re: Mr.Yuck]
#231913
02/22/09 01:44 PM
02/22/09 01:44 PM
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Joined: Apr 2008
Posts: 423
DFW Texas
AHall
OP
mopar
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OP
mopar
Joined: Apr 2008
Posts: 423
DFW Texas
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Quote:
how far away is the fan? are you running a shroud?
I am going to Oreillys today to get that temp gun to start trouble shooting these issues. First things first- should I run a 160 or 180 thermostat? Fyi the fan and shroud are mounted right on the backside of the radiator.
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Re: Still running hot in traffic with the new aluminum rad
[Re: AHall]
#231914
02/22/09 02:39 PM
02/22/09 02:39 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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absolutely a 180 & W/P means water pump. I know it sounds backwards to put in a hotter stat into an eng that has overheating issues but trust us on this.
live every 24 hour block of time like it's your last day on earth
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Re: Still running hot in traffic with the new aluminum rad
[Re: AHall]
#231916
02/22/09 03:35 PM
02/22/09 03:35 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
Radiator: High capacity aluminum
Fan: MP 5 blade thermal clutch fan
Shroud
Water Pump: MP high volume, slightly overdriven (6.25" drive pulley, about 5" fan puley)
Thermostat: 180 high flow Mr Gasket
I think that is what im going to try and do. Go back as much to factory setup as possible.
With a fan like that one- can a puller be reversed somehow and installed on the front as a pusher?
You need to re-read my post. Any fan blade is curved to be efficienct in one direction. If you turn it around and reverse the motor, the blades are not working against the efficienct part of their curve. The concave ("cupped") curve pulls air toward you as you look at the cup side of the blades The only way you could reversed the same fan assembly from pusher to pull is IF you could physically reverse the blade on the motor as well as turn the motor around and reverse it.
I would agree that it sounds "probably" like too little air. I don't know why you can't check the timing--all you need is a timing light
Putting in much of a colder stat won't help. I would not go below 180, and all of these cars were designed to run from the factory with 190 stats.
I'd say if you can go to a stock fan and shroud
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Re: Still running hot in traffic with the new aluminum rad
[Re: AHall]
#231917
02/22/09 04:26 PM
02/22/09 04:26 PM
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Joined: Jan 2007
Posts: 7,664
IN
ahy
master
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master
Joined: Jan 2007
Posts: 7,664
IN
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Quote:
Quote:
A thermal clutch fan is a belt driven fan mounted on the water pump. It has a thermal clutch that engages the fan when hot and disengages when cool. Mancini sells them. Pic attached.
so this is the one id need?
http://chucker54.stores.yahoo.net/vifanpa.html
That's the one. Works great for me. It will need a shroud - it may be possible to adapt the shroud from the original radiator or you'll have to get one made.
I do agree with previous posts on checking timing and idle mixture first. Too little advance or a lean idle can make it run hotter.
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Re: Still running hot in traffic with the new aluminum rad
[Re: stumpy]
#231918
02/22/09 04:51 PM
02/22/09 04:51 PM
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Joined: Jan 2008
Posts: 3,886
Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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Quote:
I live in Grand Prairie about 5 minutes south of the airport and would be glad to help you with and teach you the hands on stuff. I'm retired so I am available most days. I've been a mechanic for over 40 years so I believe I can get you straightened out.
 Now that is right fine offer.
Here you go buddy problem solved. Hold on to your money till you get the right info.
Again nice car and good luck.
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