Is it the water pump?
Thread Starter
Melting Slicks
Joined: Jan 2004
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From: Henryville IN
Is it the water pump?
Ok I posted a while back about my car starting to heat up with a head and cam pack I just installed it is a maggie car and always before the head and cam ran about 190 or so. I had a hypertech thermo in it and run puple ice in the rad and the inner cooler. It has been tuned for the fans to kick on as they should. I check the fans and yes they are both running so I say maybe the thermo. Why did I think that because I never felt the lower rad hose get solid so it acted like the thermo didnt open. Replaced it same thing it never got solid. Could it be the pump?
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Ok I posted a while back about my car starting to heat up with a head and cam pack I just installed it is a maggie car and always before the head and cam ran about 190 or so. I had a hypertech thermo in it and run puple ice in the rad and the inner cooler. It has been tuned for the fans to kick on as they should. I check the fans and yes they are both running so I say maybe the thermo. Why did I think that because I never felt the lower rad hose get solid so it acted like the thermo didnt open. Replaced it same thing it never got solid. Could it be the pump?
Tech Contributor
Joined: May 2008
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From: Howell Michigan
St. Jude Donor '09-'10-'11
Do you have a underdrive harmonic balancer? Water pump is a pretty simple device. Not much to go wrong except for bearing and seal. I'd be looking for other things.
Thread Starter
Melting Slicks
Joined: Jan 2004
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From: Henryville IN
Nope no under drive on it the maggie didnt like that. Im with you why didnt it circulate it is almost like the fins arent spinning. You can look in the over flow and never see the water circulating. As if it never reaches the bottom hose.
Melting Slicks
Joined: Oct 2007
Posts: 2,383
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From: Kinston North Carolina
Whoa, you won't feel the bottom hose get "solid" if the pump is pumping. It feeds the pump, therefore when you rev the engine, that is the vacuum side of the pump. Have I got this right? If not I'm going to turn this thing off and go to bed! 
Bring it on!
Bring it on!
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Tech Contributor
Joined: Jan 2007
Posts: 19,465
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From: Dyer, IN
Rather than checking for a solid hose....you should be feeling for heat, indicating circulation.
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
Since you just did heads, what gaskets and were the coolant passages lined up on the gaskets to the block? The coolant goes into the front of the block to the rear and then up into the heads and back out the front. If the gasket is backwards the coolant will go into the block and then immediately out and hardly any circulation will take place.
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Since you just did heads, what gaskets and were the coolant passages lined up on the gaskets to the block? The coolant goes into the front of the block to the rear and then up into the heads and back out the front. If the gasket is backwards the coolant will go into the block and then immediately out and hardly any circulation will take place.
Thread Starter
Melting Slicks
Joined: Jan 2004
Posts: 2,992
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From: Henryville IN
Thread Starter
Melting Slicks
Joined: Jan 2004
Posts: 2,992
Likes: 0
From: Henryville IN
Tech Contributor
Joined: Jan 2007
Posts: 19,465
Likes: 1,166
From: Dyer, IN
Thread Starter
Melting Slicks
Joined: Jan 2004
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From: Henryville IN
Yep air cleaned it before I put it back in and only have maybe 400 miles on it now at 230 temp. That is why I havent drove it much. Another thing is if I keep it around 55-60 mph it stays about 200 but any thing over that the temp rises pretty fast slow down it goes down.
Last edited by ABNVET.I; Sep 10, 2009 at 09:06 PM.
Tech Contributor
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From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
I've found that it's usually the last thing done, that created the new problem.
Thread Starter
Melting Slicks
Joined: Jan 2004
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From: Henryville IN
I cahnged thermos last night so drianed a lot out of the system. When I refilled the rad I jacked up the passanger side to have the air go to the res tank and filled it slow with the motor running. So to be honest not sure if the air is all out. I called a shop and they told me they want 130.00 to put the tool on there to purge the air. Isnt that a little high? I can get one of them tools off fleabay for that.
Team Owner
Joined: Mar 2002
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I cahnged thermos last night so drianed a lot out of the system. When I refilled the rad I jacked up the passanger side to have the air go to the res tank and filled it slow with the motor running. So to be honest not sure if the air is all out. I called a shop and they told me they want 130.00 to put the tool on there to purge the air. Isnt that a little high? I can get one of them tools off fleabay for that.
Does the heater blow hot? Is there any change if you run with pure water?
With everything you've eliminated, it's starting to sound like you've got a blockage somewhere ... either air or coolant.