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Can a waterpump gradually go "bad"? #986611
05/05/11 02:39 PM
05/05/11 02:39 PM
Joined: Aug 2003
Posts: 4,481
Mesa, AZ
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Pat_Whalen Offline OP
super gas
Pat_Whalen  Offline OP
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Posts: 4,481
Mesa, AZ
Still trying to sort through my high temps. Running around during 100 degree days here with my 440 results in temps pushing 200+. I'm not sure if that's too high, but it begs a question. My radiator is a new 3 core, the electric fan I've got on it does not cover the entire core (maybe 75 percent of it). I know this is a problem and while I await the funds for the mercedes fan and controller, I'd like to fix any other deficient areas. Currently running a 180* thermostat and an edelbrock waterpump (it's what came on the housing when I picked up the engine).

Is this style of pump, with the cast vanes, more or less efficient than the stamped vane mopar style? Should I consider replacing it? Do they become less and less efficient as they age? I'm not sure how old this pump is. I know it's silly to ask, but is that possible?

Thanks for any help

Re: Can a waterpump gradually go "bad"? [Re: Pat_Whalen] #986612
05/05/11 02:42 PM
05/05/11 02:42 PM
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 75,005
U.S.S.A.
I don't know , it either spins or it doesn't , unless the belt is slipping , you'd hear it , or the rotor falls off the shaft ???

Re: Can a waterpump gradually go "bad"? [Re: Pat_Whalen] #986613
05/05/11 03:17 PM
05/05/11 03:17 PM
Joined: Nov 2004
Posts: 843
Suffolk,VA
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ireland383 Offline
super stock
ireland383  Offline
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Joined: Nov 2004
Posts: 843
Suffolk,VA
Quote:

Still trying to sort through my high temps. Running around during 100 degree days here with my 440 results in temps pushing 200+. I'm not sure if that's too high, but it begs a question. My radiator is a new 3 core, the electric fan I've got on it does not cover the entire core (maybe 75 percent of it). I know this is a problem and while I await the funds for the mercedes fan and controller, I'd like to fix any other deficient areas. Currently running a 180* thermostat and an edelbrock waterpump (it's what came on the housing when I picked up the engine).

Is this style of pump, with the cast vanes, more or less efficient than the stamped vane mopar style? Should I consider replacing it? Do they become less and less efficient as they age? I'm not sure how old this pump is. I know it's silly to ask, but is that possible?

Thanks for any help




Pick up one of those laser temp guns and check around on your motor. I got one at Autozone for around 30 dollars and verified that my gauge was off. Make sure you have no air pockets in the system as well. I have a 3 core aluminum rad with the alleged faulty Cat housing with a Napa replaement pump and can't get the car over 180 in traffic on a 100 degree day. You should go with a clutch fan and shroud.

Last edited by ireland383; 05/05/11 03:19 PM.
Re: Can a waterpump gradually go "bad"? [Re: Pat_Whalen] #986614
05/05/11 03:46 PM
05/05/11 03:46 PM
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk ! Offline
The village idiot's idiot
dOrk !  Offline
The village idiot's idiot

Joined: Jul 2008
Posts: 30,424
Florida STAYcation
At any speed will then motor then run at the temps the stat is at ?

Re: Can a waterpump gradually go "bad"? [Re: dOrk !] #986615
05/05/11 03:50 PM
05/05/11 03:50 PM
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog Offline
Striving for excellence
Kern Dog  Offline
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Posts: 18,493
Granite Bay CA
Quote:

At any speed will then motor then run at the temps the stat is at ?




Dipping into the NyQuil, Doc?

Re: Can a waterpump gradually go "bad"? [Re: Pat_Whalen] #986616
05/05/11 04:30 PM
05/05/11 04:30 PM
Joined: Jan 2003
Posts: 4,558
Montana
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FuryUs Offline
master
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Posts: 4,558
Montana
The vanes can erode away and pump less.

Re: Can a waterpump gradually go "bad"? [Re: Kern Dog] #986617
05/05/11 05:10 PM
05/05/11 05:10 PM
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk ! Offline
The village idiot's idiot
dOrk !  Offline
The village idiot's idiot

Joined: Jul 2008
Posts: 30,424
Florida STAYcation
Quote:

Quote:

At any speed will then motor then run at the temps the stat is at ?




Dipping into the NyQuil, Doc?




Did YOU type that out ? ...

OK .... At any given car speed ...will the motor then run at the temp the stat is set at ?

BETTER ? ...

Re: Can a waterpump gradually go "bad"? [Re: dOrk !] #986618
05/05/11 05:16 PM
05/05/11 05:16 PM
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog Offline
Striving for excellence
Kern Dog  Offline
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Granite Bay CA
Oh DOC... I figured that you could take a joke as well as you can give them! Just having fun, you know.

Re: Can a waterpump gradually go "bad"? [Re: dOrk !] #986619
05/05/11 05:18 PM
05/05/11 05:18 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
You've got an excellent rad/good pump so I'm gonna assume that it's a low(er) speed prob so I'd say airflow & as you said non elec fan in the works plus a shroud/unobstructed grill


live every 24 hour block of time like it's your last day on earth
Re: Can a waterpump gradually go "bad"? [Re: Kern Dog] #986620
05/05/11 05:39 PM
05/05/11 05:39 PM
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk ! Offline
The village idiot's idiot
dOrk !  Offline
The village idiot's idiot

Joined: Jul 2008
Posts: 30,424
Florida STAYcation
Quote:

Oh DOC... I figured that you could take a joke as well as you can give them! Just having fun, you know.




FRANKENberri ... now if you look at that first post .... if you take-off the n on the first usage of the word THEN ... it makes BESTer sense.

Re: Can a waterpump gradually go "bad"? [Re: Pat_Whalen] #986621
05/05/11 09:06 PM
05/05/11 09:06 PM
Joined: Jan 2003
Posts: 21,072
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
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Joined: Jan 2003
Posts: 21,072
Niles , Ohio
Ive tried to figure out Docs replys for years.The scary thing.Im starting to decipher them.Rocky


Chrysler Firepower
Re: Can a waterpump gradually go "bad"? [Re: therocks] #986622
05/05/11 10:46 PM
05/05/11 10:46 PM
Joined: Jul 2008
Posts: 30,424
Florida STAYcation
dOrk ! Offline
The village idiot's idiot
dOrk !  Offline
The village idiot's idiot

Joined: Jul 2008
Posts: 30,424
Florida STAYcation
Quote:

Ive tried to figure out Docs replys for years.The scary thing.Im starting to decipher them.Rocky




Yo Rocks .. it is good to hear that you have FINALLY laid that fattie down ...

Re: Can a waterpump gradually go "bad"? [Re: FuryUs] #986623
05/06/11 09:05 PM
05/06/11 09:05 PM
Joined: Nov 2008
Posts: 72
Pgh, PA
Nino Offline
member
Nino  Offline
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Joined: Nov 2008
Posts: 72
Pgh, PA
Quote:

The vanes can erode away and pump less.




I'm not saying that this is your problem, but it happened to me once. No usual warning signs -- no leaks from the weep-hole and no shaft-play. Finally pulled it, and the cupped portion of the vanes had completely worn away to the point that they weren't pumping at all, just spinning (the curve was completely gone). I used to have a picture of it somehwere...

Maybe check the temperature of the return hose to your radiator and see if it's hot/pumping... (it's not the most accurate, but I usually just use my hand and you can even feel when the thermostat opens).


1970 Dodge Coronet 1968 Barracuda FB 1970 Duster 1974 Dart 1977 Dodge Custom Van
Re: Can a waterpump gradually go "bad"? [Re: Nino] #986624
05/07/11 12:02 PM
05/07/11 12:02 PM
Joined: Jan 2006
Posts: 587
IL . usa
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cjs69mope Offline
mopar
cjs69mope  Offline
mopar
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Joined: Jan 2006
Posts: 587
IL . usa
The Problem is the Small Electric Fan Period .
I have tryed many differant fan combonations and the best one is a factory seven blade with thermal clutch fan that has a 216 ending partnumber that fan pulls over 3500 cfm if you electric is under that the car will run hot . this fan can keep a 900 hp alum hemi cool in 90 deg weather it will work for you .
second best fan is a 18 inch flex a lite seven blade fan .
pulls tons of air at slow speeds and flatens out at high rpm . the both will work best with the shrouwd . but have used the factory with out shroud and still works good .


1969 Dodge Charger 1969 Dodge Superbee






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