Coolant overflow problem!!
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Elder User
Joined: Jun 2002
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From: Woodbridge NJ
Coolant overflow problem!!
What's up guys? I'm having alittle problem w/ my cooling system. It seems that when I'm driving and I really get on the gas (Floored for 5 seconds or so...) the radiator overflows and dumps all the extra coolant into reservoir container which eventually overflows causing a huge mess. (picture me sitting at a traffic light and antifreeze dumping out over my driver's side front tire) This has happened approx. 20 times. At first I though I overfilled the radiator....Nope. I checked the radiator and it was almost empty. And the engine temp is normal...190.
This all started after I installed the supercharger. I'm currently running a heavy duty radiator (1 year old) Milodon high volume water pump, a new Milodon 160 thermostat, new radiator cap, and I even bought a new coolant resivoir/windshield washer container because the 2nd time this happened it blew the side seam out making it useless.
Hopefully I'm overlooking something......any input would be great.
Thanks,
Jerry D.
This all started after I installed the supercharger. I'm currently running a heavy duty radiator (1 year old) Milodon high volume water pump, a new Milodon 160 thermostat, new radiator cap, and I even bought a new coolant resivoir/windshield washer container because the 2nd time this happened it blew the side seam out making it useless.
Hopefully I'm overlooking something......any input would be great.
Thanks,
Jerry D.
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Joined: Jun 2004
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From: Central NY
odd. The only things that pops into mind off hand is the thermostat. Using a high volume water pump mandates a balanced thermostat. A regular spring loaded one won't be able to (stay) open under the high pressure.
Also make sure that your lower hose isn't collapsing under the high suction. This actually might be more inline with your problem since a closed thermostat wouldn't overpressure the radiator.
just my 2 thought. Good luck.
Also make sure that your lower hose isn't collapsing under the high suction. This actually might be more inline with your problem since a closed thermostat wouldn't overpressure the radiator.
just my 2 thought. Good luck.
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Joined: Dec 2005
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From: in suburbia
a it sounds like the water pump is a little to high volume for your coolling system and its just creating a little to much pressure for to long maybe a lower degree thermostate so the pressure isnt built up for so long. that or hows the mixture on your coollant you dont have to much water ands it just boiling out. that or i dono if that wp is electric or belt drivin but if its beld the pully isnt smaller and is spinning faster thus creating more pressure, or even if its electric that means its on constant all the time and just creating to much pressure
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Joined: Jun 2003
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From: Calhoun GA
I don't like to be the bearer of bad news, but my guess is that you have a blown head gasket. Before you go and throw parts at it, do a leak down test.
I run a Cobra water pump pulley on mine (it spins the water pump MUCH faster) and a 180 degree t-stat and no problems.
How are you tuning your rig?
I run a Cobra water pump pulley on mine (it spins the water pump MUCH faster) and a 180 degree t-stat and no problems.
How are you tuning your rig?
Last edited by Blurry94; Jun 20, 2006 at 10:02 PM.
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Elder User
Joined: Jun 2002
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From: Woodbridge NJ
Damn! A head gasket. This is not what I was hoping for. The truck is running great and I'm not geting any coolant in my oil. I guess it better do a leak down test.
I haven't had it properly tuned as far as bring it to a dyno shop.
I haven't had it properly tuned as far as bring it to a dyno shop.
Post Fiend
Joined: Mar 2002
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From: Bonita Springs FL
I was thinking headgasket or possibly a lower intake manifold gasket. With all that pressure in the intake from the supercharger, a leak in the wrong place could blow air into the cooling system - thus the leak.
I don't know much about superchargers except how the work in principle. Can you "disconnect" it and try to reproduce the problem?
I don't know much about superchargers except how the work in principle. Can you "disconnect" it and try to reproduce the problem?
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head gasket was also going to be my guess. Get the cooling system tested to see if it holds pressure.
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From: Calhoun GA
Originally Posted by dvldog458
...I haven't had it properly tuned as far as bring it to a dyno shop.
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Go ahead and do the leak down test--it cant hurt. But I would try replacing the radiator cap. My truck did the same thing--but only when the engine was turned off on a hot day.
I looked at at least a dozen trucks before buying mine --and all of them showed signs of this problem.
I looked at at least a dozen trucks before buying mine --and all of them showed signs of this problem.
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From: Calhoun GA
Originally Posted by dvldog458
No MSD btm. I just installed the basic kit that Powerdyne sells.
What head gaskets should I use to correct this problem.
What head gaskets should I use to correct this problem.
Do a leakdown test and even replace the cap (as stated above) so you get the simple things out of the way.
My suggestion would be to either get a boost/timing controller on it or look into some aftermarket tuning, and always run 93 octane...nothing less.
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From: Woodbridge NJ
* UPDATE *
Well, I guess it's time to install new head gaskets! The test showed some signs of hydrocarbons in the coolant.
So, the question is what head gaskets and intake gaskets should I use so this does not happen again. I'm pretty sure they make special gaskets for blower and nitrous applications.
Please any info would be helpful......this is my 1st supercharged vehicle.
Thanks,
Jerry
Well, I guess it's time to install new head gaskets! The test showed some signs of hydrocarbons in the coolant.
So, the question is what head gaskets and intake gaskets should I use so this does not happen again. I'm pretty sure they make special gaskets for blower and nitrous applications.
Please any info would be helpful......this is my 1st supercharged vehicle.
Thanks,
Jerry
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From: Calhoun GA
I run Fel-Pro 1011-2 on my rig (351w). They have a steel firing ring which should be a good gasket for a boosted application (I see about 13-14psi on mine). I wouldn't recommend anything more than that because you want the head gasket to be the fuse instead of something else...like a piston.
I'd recommend getting your motor tuned (timing and A/F ratios) so you can maximize your combo and allow it to last a while.
I'd recommend getting your motor tuned (timing and A/F ratios) so you can maximize your combo and allow it to last a while.