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Re: new distributor [Re: 8urvette] #2766482
04/20/20 08:54 PM
04/20/20 08:54 PM
Joined: Jan 2007
Posts: 6,927
Mt Morris Michigan
mopar dave Offline
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Ok, no vac advance. 50* is obviously way too much. If your using a dial back timing light, I would try a non dial back light if you haven’t yet. I’m assuming your mechanical advance is working with correct springs.

Re: new distributor [Re: 8urvette] #2766582
04/21/20 08:09 AM
04/21/20 08:09 AM
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IL
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Dart451 Offline
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The flex fan will need a shroud, but even without it should run cooler on the highway but will have problem in town,

Re: new distributor [Re: Dart451] #2767163
04/22/20 04:48 PM
04/22/20 04:48 PM
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Posts: 534
wine country
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8urvette Offline OP
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wine country
OMG!!! :whiney whiney whiney:

About ready to lose my s***..... AGGGHHHHH.

Flex fan in, 1/2" from radiator, high flow milodon pump, high flow water pump housing, high flow 160* thermostat.

Still runs hot!!! idle, road, highway.... sits at 210* I DO NOT YET HAVE A shroud, but id think at speed the airflow would make up for it?

WHAT THE HECK!?!?!?!?!?!?!?!?!??!!?!?

flame

Last edited by 8urvette; 04/22/20 04:49 PM.
Re: new distributor [Re: 8urvette] #2767176
04/22/20 05:42 PM
04/22/20 05:42 PM
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TN Hoosier
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jb500 Online content
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What has changed in your combo from this point in time??? It was exchanging heat and dropping the coolant temps.


"At idle in my carport it comes to 170* the t stat opens and it drops to 150*ish. when it warms that water up the stat opens again and hot water from the rad coms in and a few seconds later at about 210* the fan comes on and brings everything back down to 170-180* idling fan goes off and then on and so on. it works in the carport.

I took it for a test drive, it hung out around 200*-210* driving. seemed fine there, when i came to a stop it would slowly come down to 190-180* start driving again and it would go back to 200-210*. Maybe it isn't the best radiator? maybe the small ports on the housing don't flow enough water? maybe its a combination of it all."

Re: new distributor [Re: jb500] #2767185
04/22/20 06:17 PM
04/22/20 06:17 PM
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Posts: 534
wine country
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8urvette Offline OP
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Originally Posted by jb500
What has changed in your combo from this point in time??? It was exchanging heat and dropping the coolant temps.


"At idle in my carport it comes to 170* the t stat opens and it drops to 150*ish. when it warms that water up the stat opens again and hot water from the rad coms in and a few seconds later at about 210* the fan comes on and brings everything back down to 170-180* idling fan goes off and then on and so on. it works in the carport.


This still happens. except now it has a mechanical fan. no electric fan, so it starts heats up, opens the t stat- comes down then slowly rises to 210ish.

Originally Posted by jb500

I took it for a test drive, it hung out around 200*-210* driving. seemed fine there, when i came to a stop it would slowly come down to 190-180* start driving again and it would go back to 200-210*. Maybe it isn't the best radiator? maybe the small ports on the housing don't flow enough water? maybe its a combination of it all."


now it heats up, and seems to stay around 210*, like its getting heat soaked. i don't know

Re: new distributor [Re: 8urvette] #2767189
04/22/20 06:23 PM
04/22/20 06:23 PM
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Posts: 171
TN Hoosier
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is your lower hose a non-collapsible rated type, has a support spring, or none of the above?

Re: new distributor [Re: 8urvette] #2767192
04/22/20 06:41 PM
04/22/20 06:41 PM
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Ambridge, Pa.
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rickraw Offline
top fuel
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Ambridge, Pa.
Had the issure yrs ago. Get a test kit to check for exhaust in cooling system. You never know.

Re: new distributor [Re: 8urvette] #2767227
04/22/20 09:09 PM
04/22/20 09:09 PM
Joined: May 2008
Posts: 1,129
Thigh-Gap Junction
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@#$%&*! Offline
New user name, Same old jerk!
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It's pretty funny really. These overheating threads come up at least once a year (probably the same on other auto-related forums) and almost always follow this same course. Lots of suggestions, cooling system parts swapping, testing, all with little or no success. Sometimes people install massively overkill cooling systems and are okay afterward but how many people are out there doing just fine with the stock factory cooling system? Lots. I think the problem is that people assume the problem is the cooling system when the true culprit is elsewhere. There a LOT of lurkers watching but not participating because they've done it before, perhaps several times.
twocents



Originally Posted by 8urvette
OMG!!! :whiney whiney whiney:

About ready to lose my s***..... AGGGHHHHH.

Flex fan in, 1/2" from radiator, high flow milodon pump, high flow water pump housing, high flow 160* thermostat.

Still runs hot!!! idle, road, highway.... sits at 210* I DO NOT YET HAVE A shroud, but id think at speed the airflow would make up for it?

WHAT THE HECK!?!?!?!?!?!?!?!?!??!!?!?

flame

Re: new distributor [Re: rickraw] #2767269
04/22/20 11:07 PM
04/22/20 11:07 PM
Joined: Jul 2011
Posts: 534
wine country
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8urvette Offline OP
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wine country
Originally Posted by rickraw
Had the issure yrs ago. Get a test kit to check for exhaust in cooling system. You never know.


starter relay just died, have to wait till tomorrow. i will test head gaskets then.

this is just a lil' 383, what does everyone else do for cooling? what rad? what pump? what housing? what if any shroud.

Re: new distributor [Re: 8urvette] #2767323
04/23/20 08:22 AM
04/23/20 08:22 AM
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Dart451 Offline
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You ever get the stumble out of the carb?

Maybe try locking the timing out at 36 degrees? Without a start delay will be hard to start hot but a easy test to see if anything is different.

Re: new distributor [Re: Dart451] #2767362
04/23/20 10:41 AM
04/23/20 10:41 AM
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Posts: 534
wine country
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8urvette Offline OP
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Originally Posted by Dart451
You ever get the stumble out of the carb?

Maybe try locking the timing out at 36 degrees? Without a start delay will be hard to start hot but a easy test to see if anything is different.


NO, I don't think it is a timing thing.

It does it under 1500 rpms. Maybe even closer to 1k. In drive if i give it any gas off idle it will pop through the carb and sometimes die.

If i barely move the throttle and get the rpms going up then it drives normal.

Re: new distributor [Re: 8urvette] #2767371
04/23/20 11:09 AM
04/23/20 11:09 AM
Joined: Jun 2003
Posts: 52,726
Romeo MI
MR_P_BODY Online content
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Romeo MI
Its lean.. the spark is chasing the fuel.. have you done anything to the carb.. you might try
opening the mixture screws a 1/8 of a turn
wave

Last edited by MR_P_BODY; 04/23/20 11:13 AM.
Re: new distributor [Re: 8urvette] #2767393
04/23/20 12:07 PM
04/23/20 12:07 PM
Joined: Jan 2007
Posts: 6,927
Mt Morris Michigan
mopar dave Offline
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sounds to be a fuel/vacuum issue. If you set the screws to max vacuum that should be enough fuel. Have you tried to turn the screws all the way in and stall the engine, both screws one at a time. That would eliminate anything plugged either side. Some of the early Holley Vacuum carbs had mix screws that metered air instead of fuel. So to make it rich the screw would have the be screwed in and screwed out for lean. The shroud I used is a Jegs brand for mopar to fit 69 B body 26" radiator. This shroud fit my 26" A body perfectly.

Re: new distributor [Re: mopar dave] #2767398
04/23/20 12:18 PM
04/23/20 12:18 PM
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Dart451 Offline
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Work on tuning the engine, my 69 Fury 383 cooling issues disappeared once I got the timing and carb figured out.
It runs a aluminum radiator (factory one was rotted out) stock fan with stock shroud.

Re: new distributor [Re: 8urvette] #2767401
04/23/20 12:21 PM
04/23/20 12:21 PM
Joined: Jan 2007
Posts: 6,927
Mt Morris Michigan
mopar dave Offline
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the Jegs shroud I used is made of black plastic and the opening is 20". Part Number: 312-P2785434. Mine looks similar to this one just to give you an idea.

Re: new distributor [Re: mopar dave] #2767407
04/23/20 12:29 PM
04/23/20 12:29 PM
Joined: Jan 2007
Posts: 6,927
Mt Morris Michigan
mopar dave Offline
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Found this on Mancini site Item #: MOPP2998326 and it has a 20" opening.

mopar-performance-fan-shroud-30.gif
Re: new distributor [Re: 8urvette] #2767454
04/23/20 02:14 PM
04/23/20 02:14 PM
Joined: Aug 2003
Posts: 35,510
Bend,OR USA
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Cab_Burge Online content
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Bend,OR USA
I've had motors stumble due to being to rich as well as to lean, to lean normally will pop through the carb, backfire, to rich is doggy before it cleans up and goes. scope
IHTHs thumbs


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: new distributor [Re: Cab_Burge] #2767589
04/23/20 07:34 PM
04/23/20 07:34 PM
Joined: Jul 2011
Posts: 534
wine country
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8urvette Offline OP
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I went to my buddys shop, he has also been giving me ideas. He lent me his blue point thermo gun.

My in car gauge says 250* , The laser dot from the gun on temp probe says 180*

I bring it back and he lends me his "expensive" thermo gun to verify. It reads within a few degrees of the blue point. I check over the whole motor, all exhaust several points on each head, the block, the oil pan the radiator etc...

This means I have had 3 bad gauges, WHO THE HELL HAS THIS KIND OF LUCK????????


Also my exhaust at idle is between 650* and 850* the outer cylinders are 650* the 4 inner ones are 850*. I hate this thing right now! flame flame flame

Re: new distributor [Re: 8urvette] #2767599
04/23/20 08:05 PM
04/23/20 08:05 PM
Joined: Jan 2007
Posts: 6,927
Mt Morris Michigan
mopar dave Offline
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The only thing I can say is when your ignition timing is too retarded you get extra heat in the headers.

Re: new distributor [Re: mopar dave] #2767770
04/24/20 09:08 AM
04/24/20 09:08 AM
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IL
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Dart451 Offline
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Your persistence on trying to figure it out is awesome.
Hopefully this is your biggest problem in life, if so you are still winning up

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