Grey sludge in brand new radiator - what does it mean.

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I bet the block it is full of bars stop leak that somebody was using to clog the pin holes in the radiator.
 
Oklacarcollecto said:
Maybe it is garbage still left from the old radiator that was still in the engine and possible crap they put in it to seal the leaks. As said before flush several times and then go from there.
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sireland67 said:
I bet the block it is full of bars stop leak that somebody was using to clog the pin holes in the radiator.
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u guys beat me to it :D
 
It just needs some tender loving care. Be patient. All good things take time. It took good 6 days to build the earth.
 
I flushed the radiator twice, this weekend I'll let her idle for a long while and do it again. I think before that I better hook up my electric fan.
 
I unhooked the lower radiator hose, and let the water drain out of the radiator and block. Was I suppose to run the garden hose up the lower hose to clear out the block? Does that work?
 
sazzlefrats said:
I unhooked the lower radiator hose, and let the water drain out of the radiator and block. Was I suppose to run the garden hose up the lower hose to clear out the block? Does that work?
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Going up from the bottom hose won't clean much out of the engine.

The thermostat won't allow the block to be flushed from just putting water through the radiator. I always remove the top hose and the thermostat then do a full flush to make sure everything is removed. I also flush out the heater core separately by removing both heater hoses from the block. You could flush the block through a heater hose connection but you won't be able to get what may be clinging on to the thermostat.

I would hate to see you tear the motor down when it may be something like stop leak or some garbage that is through the whole system.
 
Take off the thermostat and stick the garden hose there with the engine not running? My heater core is blocked off.
 
my question is since no one else has said it; why are you bothering with a dodge dart on a 4wd frame? it can't be road legal, so basically its a woods buggy....
 
if you mix non-compatible anti freeze you can also get a sludge build up. and if thats the case good luck flushing the cooling system.that stuff is apita to get out
 
You can drive that thing anywhere in Georgia. Ain't nuffin illegal down here....cept for oral sex.
 
California vehicle codes don't seem to mind most modifications. About the only thing that stands out is the tires are wider than the body. But as long as I make or get fender flares I'll be in compliance. With that being said I've already put my dart bumpers on, and eventually I'll put lower nerf tube bumpers on (painted flat black, so you won't notice them) then I'll be in compliance with almost every state in the US. I think one or two states have really low headlight rules and I can't do much there, maybe add foglights, but I'm not planning to leave California anyhow.

Anyhow the real reason... someone else did the majority of the work and I picked it up pretty cheap and I think this dart looks hella cool.



66plyValiant said:
my question is since no one else has said it; why are you bothering witniq dodge dart on a 4wd frame? it can't be road legal, so basically its a woods buggy....
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Check for electrolysis. Was talking to a radiator manufacturer today at the Roadster show. When he sees "gorilla snot" he calls it in the radiator it's usually caused by electrolysis.

check electrolysis by simply hooking up a multimeter to the battery ground and dangle the positive side in the fluid in the radiator (not touching anything). Do it with the battery hooked up and car running and then not running,

Should be under .3 volts (300 mV).

Mine pictured below is .076 volts ( 76 mV) with distilled water, 1 bottle of Justice Brothers Super Radiator Cooler and 1 bottle of Justice Brothers Cooling System Protector.
 

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autoxcuda said:
Check for electrolysis. Was talking to a radiator manufacturer today at the Roadster show. When he sees "gorilla snot" he calls it in the radiator it's usually caused by electrolysis.

check electrolysis by simply hooking up a multimeter to the battery ground and dangle the positive side in the fluid in the radiator (not touching anything). Do it with the battery hooked up and car running and then not running,

Should be under .3 volts (300 mV).

Mine pictured below is .076 volts ( 76 mV) with distilled water, 1 bottle of Justice Brothers Super Radiator Cooler and 1 bottle of Justice Brothers Cooling System Protector.
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Ahh I can do that. I'll check tonight. The voltometer is the only testing tool I have.
 
autoxcuda said:
Mine pictured below is .076 volts ( 76 mV) with distilled water, 1 bottle of Justice Brothers Super Radiator Cooler and 1 bottle of Justice Brothers Cooling System Protector.
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uhhhhh......not from the math I learned it doesn't. Your meter shows 76.8. That's a big difference from .076.
 
RustyRatRod said:
uhhhhh......not from the math I learned it doesn't. Your meter shows 76.8. That's a big difference from .076.
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Yes it shows 76.8 mV which is .076 Volts. It's just on the mV scale.

I just wanted the way the voltage scales Volts (mV) were stated to be in paralell from paragraph to paragraph.
 
I agree with others. I work in an auto supply store and we sell more stop leak than we do radiator's, water pumps, thermostats, and hoses. No matter how much you try and tell them to fix it right by replacing the faulty part on there car.

Aj
 
RustyRatRod said:
uhhhhh......not from the math I learned it doesn't. Your meter shows 76.8. That's a big difference from .076.
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autoxcuda said:
Yes it shows 76.8 mV which is .076 Volts. It's just on the mV scale.

I just wanted the way the voltage scales Volts (mV) were stated to be in paralell from paragraph to paragraph.
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AutoX is right.

It would either have to be mv (millivolts) or uv (microvolts). Otherwise, it'd be 768 mv, or .768V 1000 millivolts is one volt
 
autoxcuda said:
Yes it shows 76.8 mV which is .076 Volts. It's just on the mV scale.

I just wanted the way the voltage scales Volts (mV) were stated to be in paralell from paragraph to paragraph.
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Ok. Good. I was gonna say.....you might have a problem. LOL
 
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