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Re: Superbird Overheats
[Re: Viol8r]
#1037017
07/21/11 10:23 PM
07/21/11 10:23 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Can we start with some basic stuff like initial timing and tune before we have this guy rebuild his entire cooling system??!
Just like AndyF said early in this post, get the tune right and it will cool down.
8 times out of 10 overheating problems are tuneup related. imo
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Re: Superbird Overheats
[Re: Bayou_Bird]
#1037019
07/21/11 10:29 PM
07/21/11 10:29 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Well you've confirmed that you have sufficient pull through the grille, I would still replace the fan with a solid/fixed blade,.... your seals are in place, you know the radiator core
has been redone,...but have you confirmed a spring in the lower hose?, just squeeze it to confirm it can't collapse,....again I'll recommend the ZEREX G-05 antifreeze, 50/50 freeze/water mix, with 8-10 Oz of REDLINE WATER WETTER (Autozone)....this antifreeze mix alone was worth an easy 15-20 degrees lower running temp in my Daytona, which always ran 210-230 in slow moving traffic, so I more than know your woes of running hot,.....straight water with water wetter is the most effective cooling mix,....But antifreeze added has the ability to raise the boiling temp of the fluid, combined with water wetter helps to eliminate steam pockets that develope in the cooling system/engine when it reaches operating temps...
What is the initial timing of the engine?
Mike
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Re: Superbird Overheats
[Re: DAYCLONA]
#1037020
07/22/11 02:25 AM
07/22/11 02:25 AM
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Joined: Feb 2009
Posts: 982
W. Sacto CA. USA
phantomx
super stock
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super stock
Joined: Feb 2009
Posts: 982
W. Sacto CA. USA
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Doubt the hose is sucking shut, he says it cools down when driving faster than 45mph on a steady run. I'd bet it's tune related. Only been driven 300 miles in 6 years. You haven't driven it enough to make a difference. Have you flogged it at all? Do you know if it makes any power or runs correctly? Or, do you just drive it around like you're delivering milk? If you can't tune it, take it to someone who knows how. You may well be chasing your tail messing with the cooling system.
Travis..
70 GTX project, orig 440-4, 4 spd, track pack, FC7, stripper/street racer special.
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Re: Superbird Overheats
[Re: phantomx]
#1037021
07/22/11 08:41 AM
07/22/11 08:41 AM
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Joined: Dec 2004
Posts: 5,278
San Jose, California
DennisH
Vacation
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Vacation
Joined: Dec 2004
Posts: 5,278
San Jose, California
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Quote:
Doubt the hose is sucking shut, he says it cools down when driving faster than 45mph on a steady run. I'd bet it's tune related. Only been driven 300 miles in 6 years. You haven't driven it enough to make a difference. Have you flogged it at all? Do you know if it makes any power or runs correctly? Or, do you just drive it around like you're delivering milk? If you can't tune it, take it to someone who knows how. You may well be chasing your tail messing with the cooling system.
Travis..
Agreed. Go drive the car. For real. The way it was meant to be driven. And not for 10 minutes.
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Re: Superbird Overheats
[Re: Bayou_Bird]
#1037023
07/22/11 10:43 AM
07/22/11 10:43 AM
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Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger
master
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master
Joined: Aug 2003
Posts: 8,828
Houston, Tx
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Quote:
When you pay my bills...you can tell me how to drive. I guess jerks are everywhere...even on Moparts. I did not come on here for driving lessons.
Steve, I feel your pain.
When I first got my Daytona, it ran so hot it actually caused my wiper squirter hose support loops (the white ones running down the passenger inner fender) to melt. Now, that's hot !! I live down in the South as well. I talked to Ted Janak who lives near me and he had these problems when he had his Daytonas and Superbirds way back in the day. So, it's the nature of these beasts. Is the car purging/overflowing when you turn off the engine after it's heated up? I do know every car's going to be different. When I top off my radiator, the Daytona always purges coolant when I turn off the motor after a trip in the hot weather. But, after a while, it stops once it sort of balances out and it's all good-to-go.
My timing and everything was fine, 10 degree initial if I remember. Maybe even 5. Regardless, the thing that seemed to do the trick for me was the water wetter and distilled water. Of course, I made sure my radiator was in tip-top shape and I was getting sufficient water flow. I changed out the thermostat too if I recall. I tested the one that was in the car in a pot of boiling water and it wasn't opening all the way. So, that was part of my problem. I see you have a solid fan, so that's good (that is your picture of the engine compartment?). Right now, I feel comfortable with going anywhere. I haven't been caught in a bumper-to-bumper traffic jam yet, so I haven't had to test out my new pusher fan.
Don't worry what others may or may not say. Sift through what you need and press on... Believe me, I've gotten plenty of unless replies over the years on threads of mine.
Last edited by hemi68charger; 07/22/11 10:46 AM.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Superbird Overheats
[Re: Bayou_Bird]
#1037027
07/22/11 01:18 PM
07/22/11 01:18 PM
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Joined: Apr 2010
Posts: 10,570
Sunny South Florida
Golden-Arm
I Live Here
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I Live Here
Joined: Apr 2010
Posts: 10,570
Sunny South Florida
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i dont think they're trying to tell you how to drive. just suggesting thaat, it needs more time driving, and some real "hard running" a bit, to see what it does. if it starts pinging or knocking when you floor it, thats an indication of a possible timing problem. since it runs cool at speed, it sounds as if the fan isnt moving enough air to cool the water, thats in the radiator. this could be due to restricted tubes in the rad. you can pull the radiator out, and a decent shop can take the tanks off, and build a four or even 5 core radiator, using the stock tanks. it will look stock from above, and from behind. the latch tray will hide the rest, and the extra rows, make a huge difference. if you're sure the timing and carb are right (and you might need to "thrash" it a bit, to find out) then you need to address the rad. one other thing, be sure the radiator cap is the correct one, pounds wise. and have it tested, to be sure it's operating in the correct range. the 160 stat isnt an issue. once it's open, it's open, no matter the range. good luck!!! 
"When Tyranny Becomes Law, Rebellion Becomes Duty"
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Re: Superbird Overheats
[Re: Kirby]
#1037028
07/22/11 01:22 PM
07/22/11 01:22 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
I think you need a higher temp thermostat. The 160 is open all the time, allowing maximum flow- but does not keep the coolant in the radiator to sufficiently cool it. The thermostat is designed to open and close to regulate the temp- not just open at a certain temp. 
I agree Kirby, 180 Thermostat probally would be his best selection, that's what I run in my Daytona, and usually recommend that for most wingcars running a stock set-up, to up under 500 HP.....but the OP needs to confirm some items in the cooling system, engine timing, even perhaps carb jetting, and/or air/fuel ratio,.....but one can only assume what/how the OP has/is diagnoising his problems,....we're all armchair quaterbacks because there's little info to go on,.. 
Mike
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Re: Superbird Overheats
[Re: Bayou_Bird]
#1037029
07/22/11 03:09 PM
07/22/11 03:09 PM
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Joined: Feb 2009
Posts: 982
W. Sacto CA. USA
phantomx
super stock
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super stock
Joined: Feb 2009
Posts: 982
W. Sacto CA. USA
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Quote:
When you pay my bills...you can tell me how to drive. I guess jerks are everywhere...even on Moparts. I did not come on here for driving lessons.
Not trying to be a jerk. My point is that your car is obviously very nice, but I see lots of beautiful cars sitting on the side of the freeway because they don't run like they look. If you don't want to beat your car on the street, that's ok, find someone to dyno tune it. Having a properly tuned car will pay you back in teh long run.
Travis..
EDIT: I also agree that the 160 tstat is a bad choice. I would do a 180 or maybe even try a 195 to give the coolant more time to transfer heat in the radiator. It may sound counter-intuitive but if you don't regulate that coolant flow it will just keep making the loop getting hotter and hotter.
Last edited by phantomx; 07/22/11 03:14 PM.
70 GTX project, orig 440-4, 4 spd, track pack, FC7, stripper/street racer special.
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Re: Superbird Overheats
[Re: Bayou_Bird]
#1037031
07/22/11 04:17 PM
07/22/11 04:17 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
I am currenty draining the radiator only and will add water to the mix to dilute it. It seems that most responses have in common, the more water the better.
I hope you were not running just "straight" antifreeze and no water?.....if so start with a 50/50 mix of water/antifreeze,....again I'll recommend the Zerex G-05 brand antifreeze (just 1 gal. the rest water, should be close to 50/50) with 8-10 oz. of Redline Water Wetter added,(Autozone)...you should flush the system completely before using the Zerex....I'd suggest an intial timing of 10 BTDC, when you go to check/reset the timing
Mike
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Re: Superbird Overheats
[Re: Bayou_Bird]
#1037033
07/22/11 05:27 PM
07/22/11 05:27 PM
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Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger
master
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master
Joined: Aug 2003
Posts: 8,828
Houston, Tx
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Quote:
Hello Mike, I can't believe it but I drained the radiator and added plain hose water. My temperature changed 20 degrees. I am headed in the right direction. I ran it in traffic and the highest temp was 210. So now my mix is what antifreeze was in the engine. I guess I must have 1/2 bottle of water wetter left in the mix. I would like to come down about 20 more degrees to 190. The "Mopar Doctor" is on his way over. Things are looking up. I want to be able to drive this car and enjoy it some. You have restored my faith. MOPAR (my old pig's almost running). HaHa.
Awesome................ Now talk to Doug if you haven't already and get up to Indy for the AeroWarrior meet during the Brickyard 400. Fine lookin' Plymouths there......
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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