Re: Running hot with 440 source housing and pump
[Re: Viol8r]
#685446
05/01/10 03:11 PM
05/01/10 03:11 PM
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Joined: Oct 2007
Posts: 288 Birmingham, England
Mick70RR
enthusiast
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enthusiast
Joined: Oct 2007
Posts: 288
Birmingham, England
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I had the same problem so I fitted a stock pump to the 440 Source housing and it runs cool again.
1970 Road Runner
505 cid
MCH CNC ported Stealth heads
MP 528 camshaft
4 speed
GV overdrive
11.98 @ 117 on street treads
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Re: Running hot with 440 source housing and pump
[Re: beedees]
#685448
05/01/10 03:17 PM
05/01/10 03:17 PM
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Joined: Feb 2008
Posts: 233 NH
Fastback67
enthusiast
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enthusiast
Joined: Feb 2008
Posts: 233
NH
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Quote:
I had the same problem so I fitted a stock pump to the 440 Source housing and it runs cool again.
Yes, the problem was the 440 Source Pump itself, and not the housing. The Pump doesn't move a lot of water, especially at low RPM's where it's needed the most.
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Re: Running hot with 440 source housing and pump
[Re: RapidRobert]
#685450
05/01/10 03:21 PM
05/01/10 03:21 PM
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Joined: Oct 2007
Posts: 288 Birmingham, England
Mick70RR
enthusiast
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enthusiast
Joined: Oct 2007
Posts: 288
Birmingham, England
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The passages on the 440 Source housing are smaller than a stock housing but they are big enough. The problem is the pump, it flows well at high rpm but not enough at low rpm.
1970 Road Runner
505 cid
MCH CNC ported Stealth heads
MP 528 camshaft
4 speed
GV overdrive
11.98 @ 117 on street treads
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Re: Running hot with 440 source housing and pump
[Re: Mick70RR]
#685455
05/01/10 04:37 PM
05/01/10 04:37 PM
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Joined: Nov 2007
Posts: 21,847 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,847
Kirkland, Washington
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Quote:
The passages on the 440 Source housing are smaller than a stock housing but they are big enough. The problem is the pump, it flows well at high rpm but not enough at low rpm.
I am wondering if this is the case. The 440Source pump impeller is radically different from stock, the Milodon, and the Edelbrocks. I have the 440source housing with the Edelbrock pump and it works OK, maybe not as well as it might with the stock housing but its not too bad.... (???)
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Re: Running hot with 440 source housing and pump
[Re: Dougsmopars]
#685456
05/01/10 04:47 PM
05/01/10 04:47 PM
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Joined: Oct 2003
Posts: 3,698 NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
Guess the 440 source parts are junk.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Running hot with 440 source housing and pump
[Re: Dougsmopars]
#685459
05/01/10 06:46 PM
05/01/10 06:46 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
I'm going to try the Milodon pump and see if that takes care of it. It's only 75 degree's out today and car is running hot. Definitly gonna over heat when it's 90 out.
I'm betting it's your fan clutch, try another one.
180 stat would be best.
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Re: Running hot with 440 source housing and pump
[Re: Dougsmopars]
#685461
05/01/10 07:38 PM
05/01/10 07:38 PM
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Joined: Dec 2004
Posts: 10,558 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,558
Rittman Ohio
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Doug when you say it runs "hot" how hot is hot? Over 200 degrees I use the same housing that is sold by Mancini with a CV electric pump,16" puller fan,and aluminum 2 row radiator from Mancini and my 11-1 comp.street/strip engine runs 180 down the highway and 190-200 stop and go traffic. There are so many guys afraid of 200 degrees and that is NOT overheating Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: Running hot with 440 source housing and pump
[Re: Dougsmopars]
#685462
05/01/10 08:36 PM
05/01/10 08:36 PM
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Joined: Jan 2003
Posts: 6,497 N.E. Ohio
KillerBee
master
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master
Joined: Jan 2003
Posts: 6,497
N.E. Ohio
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Many years ago I installed a new(rebuilt) waterpump from a reputable local parts place on my 440. The car ran way hottter than before. Changed thermostat with no improvment. Old time mechanic told me to check the impeller on the NEW waterpump. Sure enough the impeller was poorly pressed on and was loose and spinning on the shaft. You might want to check how tight the impeller is.
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