Re: Overheating issue
[Re: Citation_SP]
#1623011
05/21/14 01:23 PM
05/21/14 01:23 PM
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Joined: Jan 2003
Posts: 21,073 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,073
Niles , Ohio
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What fan are you running and does it have a shroud?My 65 with built 440 runs at 180 or so all day.Even at the strip and hot lapping it never gets over 190.What type of gauge do you have elec or mechanical?My kids 413 also runs the same as mine.Mine has a OE stock 22 inch C body rad.Never touched with shroud.My hids 62 is stock 22 recored to 4 core no shroud.Rocky
Chrysler Firepower
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Re: Overheating issue
[Re: Citation_SP]
#1623013
05/21/14 02:16 PM
05/21/14 02:16 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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either there ain't enough airflow (likely) at idle or not enough water flow or a combo of both. what fan/shroud & how far into the shroud is the fan? best is the MP thermal thermostatic clutch type fan spaced properly into the shroud (~1/2-3/4 into it iirc). If no shroud then how far is the fan from the rad? Post the crank and wp pulley diameters. On an unrelated issue the 160 stat needs to go & use a 180 or 185 after we solve this
live every 24 hour block of time like it's your last day on earth
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Re: Overheating issue
[Re: Citation_SP]
#1623016
05/21/14 06:46 PM
05/21/14 06:46 PM
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Joined: Jun 2006
Posts: 5,162 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,162
CT
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YOU DONT HAVE ENOUGH INITIAL TIMING. Hook the vacuum advance to manifold vacuum for the easiest fix.
What is the timing set at, 0 or 5 degrees before TDC?
Last edited by GTX MATT; 05/21/14 06:47 PM.
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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Re: Overheating issue
[Re: Citation_SP]
#1623017
05/21/14 07:04 PM
05/21/14 07:04 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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Last summer I wrote a lengthy post about trouble shooting overheating issues. It addresses your situation and gives you a how-to on identifying the root cause. overheating threadTake a look. Once you have concrete data to use for troubleshooting the members of the forum won't have to guess at the cause. As it sits now, you've given just enough info to make each person give you a different answer. Get real world temps from different parts of the engine and cooling system when the engine is getting hot. Once you do that the speculation will die down and you'll get concrete answers.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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Re: Overheating issue
[Re: 500ciDuster]
#1623022
05/22/14 12:49 AM
05/22/14 12:49 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Timing Timing Timing --it is never and will never be the thin block idea--
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Re: Overheating issue
[Re: Citation_SP]
#1623023
05/22/14 09:42 AM
05/22/14 09:42 AM
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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:
I have a 1969 Plymouth with a recently blueprinted and balanced 383- 4 bbl engine with a 4 speed. The entire engine, water pump, fan, carb, dist and radiator is per OEM spec. The thermostat is a 160 degree part. The issue is this; the engine runs at around 170 degrees on an 85 degree outside temperature day while driving. While idling the temperature will climb to 200 plus degrees within about 10 minutes and that is when we shut it off. Glen-Ray radiators sent us a max cooling 22 inch radiator with 57 tubes versus the stock 45 tubes, 3 row versus the stock 2 row and larger cross sectional area tubes than the stock radiator. The car still overheats the same way. We have tried a stock 22 inch radiator, a 22inch aluminum radiator and the max cooling 22 inch radiator with the same results. On the highway the engine runs at around 170-180 degrees with no overheating. The bottom line appears that the engine is generating more heat at idle than the radiator can dissipate. I believe the issue has to do with something with the casting of the block. Anyone every run into this problem and was able to correct it? We are not looking for any “magic fixes” since the car is OEM and if it worked in 1969 there is no reason it should not work now.
Thanks,
Mike
Like said timing could affect it.
The main thing that is different today than from 1969 is the gasoline. It is not the same as 1969 gas so the carburetor jetting and timing can't be the same.
I know folks get tired of hearing me say it may be lean and lean makes more heat. I promise and guarantee you that 10% ethanol gasoline runs leaner that straight gas of years ago.
I sell fuel for living. Just a thought...
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Re: Overheating issue
[Re: ]
#1623024
05/22/14 10:09 AM
05/22/14 10:09 AM
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Joined: Jan 2003
Posts: 1,794 Greer, SC
TooMany62s
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,794
Greer, SC
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I'm voting for a fan issue. I had the same problem on my '62 convertible. Factory A/C, 22" 3 core radiator, stock fan clutch, stock shroud, correct pulleys, high flow water pump. I suspected that the fan clutch may be the culprit so I installed a seven blade fixed fan like the ones used on Daytonas and Superbirds. Sure enough the problem went away. Now the only problem I have is the car sounds like a giant Hoover vacuum cleaner. A shroud is a genuine potential fix if you don't already have one. I think a contributor to cooling problems on these old cars could be gasoline octane and quality. Keep in mind in the 60's 98 to 102 octane leaded fuel was readily available.
Last edited by TooMany62s; 05/23/14 11:09 AM.
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Re: Overheating issue
[Re: GTX MATT]
#1623026
05/22/14 08:50 PM
05/22/14 08:50 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Generally speaking, low road speed cooling issues are air flow related. High road speed cooling issues are water flow related. Assuming you are not lean and your timing isn't retarded and OEM specs are no longer relevant today due to changes in gas formulation.
Also, the thermostat has no affect on top end temperature, just minimum temperature and running a 160 degree thermostat is probably not "Stock" and almost never a good choice for a street car.
Get a shroud, it is specifically there for the exact issues you have.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Overheating issue
[Re: Supercuda]
#1623027
05/22/14 09:57 PM
05/22/14 09:57 PM
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Joined: Jan 2003
Posts: 21,073 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,073
Niles , Ohio
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Millions of Mopars came minus shrouds.Its a good idea but they didnt use them on the majority of new cars.Ive had them since the 60s and only a few had a shroud.My kids 62 300 none my 65 none 69 Bee none et.Rocky
Chrysler Firepower
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Re: Overheating issue
[Re: therocks]
#1623028
05/23/14 12:13 AM
05/23/14 12:13 AM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Yes and when I rebuilt the 413 in my 64 300 I had nothing but low speed overheating issues, real ones with coolant puking. Till I got a shroud.
New pump, new fan, new radiator, etc did nothing. A shroud fixed it.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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