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Re: REBUILT 440 ENGINE overheats - HELP. [Re: SomeCarGuy] #1513421 10/08/13 07:22 AM 10/08/13 07:22 AM
Joined: Dec 2008 Posts: 1,336 Massachusetts, USA MASSMOPAR OP pro stock
MASSMOPAR OP pro stock Joined: Dec 2008 Posts: 1,336 Massachusetts, USA	Quote: Since it runs at 170, why not let the next guy deal with it? It is a flip afterall. 70 Road Runner 528 HEMI 4sp FY1 70 Road Runner 440+6 V-Code AG 4spd EV2 69 R/T 4 Spd Dana 3:54 AG Vert B5 69 R/T 4 Spd Dana 3:54 AG X9 V1X V8R-WORKING 69 R/T Auto/Console 8.75 SG Vert R/T B3 08 Challenger 1st Edition Hemi Orange 69 Super Bee 4 Spd 8.75 SG AG F8

Re: REBUILT 440 ENGINE overheats - HELP. [Re: RapidRobert] #1513422 10/08/13 07:27 AM 10/08/13 07:27 AM
Joined: Dec 2008 Posts: 1,336 Massachusetts, USA MASSMOPAR OP pro stock
MASSMOPAR OP pro stock Joined: Dec 2008 Posts: 1,336 Massachusetts, USA	Quote: If no stat SOLVES the overheating then k.i.s.s. you had the misfortune of having 2 bad stats in a row (the one that was in there went bad & the new one you bought). As said you might test a new one suspended in a pot of water & bring it to a boil (candy thermometers are cheap) & dont forget the temp gun . I push the stat open several times by hand to make sure it is free/not stuck before I check it on the stove. Holler how it turns out The water is boiling now ! 70 Road Runner 528 HEMI 4sp FY1 70 Road Runner 440+6 V-Code AG 4spd EV2 69 R/T 4 Spd Dana 3:54 AG Vert B5 69 R/T 4 Spd Dana 3:54 AG X9 V1X V8R-WORKING 69 R/T Auto/Console 8.75 SG Vert R/T B3 08 Challenger 1st Edition Hemi Orange 69 Super Bee 4 Spd 8.75 SG AG F8

Re: REBUILT 440 ENGINE overheats - HELP. [Re: RapidRobert] #1513423 10/08/13 07:56 AM 10/08/13 07:56 AM
Joined: Dec 2008 Posts: 1,336 Massachusetts, USA MASSMOPAR OP pro stock
MASSMOPAR OP pro stock Joined: Dec 2008 Posts: 1,336 Massachusetts, USA	Quote: If no stat SOLVES the overheating then k.i.s.s. you had the misfortune of having 2 bad stats in a row (the one that was in there went bad & the new one you bought). As said you might test a new one suspended in a pot of water & bring it to a boil (candy thermometers are cheap) & dont forget the temp gun . I push the stat open several times by hand to make sure it is free/not stuck before I check it on the stove. Holler how it turns out Stuck the old t-stat in boiling water - opens wide. I think that rules out bad stat. 70 Road Runner 528 HEMI 4sp FY1 70 Road Runner 440+6 V-Code AG 4spd EV2 69 R/T 4 Spd Dana 3:54 AG Vert B5 69 R/T 4 Spd Dana 3:54 AG X9 V1X V8R-WORKING 69 R/T Auto/Console 8.75 SG Vert R/T B3 08 Challenger 1st Edition Hemi Orange 69 Super Bee 4 Spd 8.75 SG AG F8

Re: REBUILT 440 ENGINE overheats - HELP. [Re: v8punch] #1513424 10/08/13 08:47 AM 10/08/13 08:47 AM
Joined: Dec 2008 Posts: 1,336 Massachusetts, USA MASSMOPAR OP pro stock
MASSMOPAR OP pro stock Joined: Dec 2008 Posts: 1,336 Massachusetts, USA	Quote: Are you sure if engine was machined and assembled with correct clearance? If it's tight, temperature goes up. Carburetor is no lean? If it's lean, temperature goes up. Engine runs at 170 degrees without any thermostat - oil pressure is 60. It is an after market water PUMP housing? Not sure why or if that would matter? 7880098-DSC_0515.JPG (65 downloads) 70 Road Runner 528 HEMI 4sp FY1 70 Road Runner 440+6 V-Code AG 4spd EV2 69 R/T 4 Spd Dana 3:54 AG Vert B5 69 R/T 4 Spd Dana 3:54 AG X9 V1X V8R-WORKING 69 R/T Auto/Console 8.75 SG Vert R/T B3 08 Challenger 1st Edition Hemi Orange 69 Super Bee 4 Spd 8.75 SG AG F8

Re: REBUILT 440 ENGINE overheats - HELP. [Re: MASSMOPAR] #1513425 10/08/13 09:42 AM 10/08/13 09:42 AM
Joined: Jan 2003 Posts: 28,124 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,124 Irving, TX	Quote: It is an after market water PUMP housing? Not sure why or if that would matter? Some of the aftermarket pump housings had a lower passage that was nearly blocked off. That was several years ago and I believe the problem has been corrected. HOWEVER, since your car cools fine without a stat you can rule out the pump housing. You are moving water. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: REBUILT 440 ENGINE overheats - HELP. [Re: SomeCarGuy] #1513426 10/08/13 09:47 AM 10/08/13 09:47 AM
Joined: Jan 2003 Posts: 75,354 A gulag near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,354 A gulag near you.	Quote: Since it runs at 170, why not let the next guy deal with it? It is a flip afterall.

Re: REBUILT 440 ENGINE overheats - HELP. [Re: JohnRR] #1513427 10/08/13 09:55 AM 10/08/13 09:55 AM
Joined: Jul 2010 Posts: 2,091 Delray beach, Florida P Performance Only top fuel
Performance Only top fuel P Joined: Jul 2010 Posts: 2,091 Delray beach, Florida	Does the lower hose have a spring in it to keep it from collapsing? It might not collapse without a stat in it but it will when the coolant gets pressurized against the stat. By the way, just in case, the spring on the thermostat gets installed down. Make sure it's not backwards. machine shop owner and engine builder

Re: REBUILT 440 ENGINE overheats - HELP. [Re: JohnRR] #1513428 10/08/13 10:00 AM 10/08/13 10:00 AM
Joined: Jan 2003 Posts: 9,436 Blair County,PA 62maxwgn master
62maxwgn master Joined: Jan 2003 Posts: 9,436 Blair County,PA	Quote: Quote: Since it runs at 170, why not let the next guy deal with it? It is a flip afterall. But,the next guy will post the same thing and we'll have to start all over again !!

Re: REBUILT 440 ENGINE overheats - HELP. [Re: Performance Only] #1513429 10/08/13 10:03 AM 10/08/13 10:03 AM
Joined: Dec 2008 Posts: 1,336 Massachusetts, USA MASSMOPAR OP pro stock
MASSMOPAR OP pro stock Joined: Dec 2008 Posts: 1,336 Massachusetts, USA	Quote: Does the lower hose have a spring in it to keep it from collapsing? It might not collapse without a stat in it but it will when the coolant gets pressurized against the stat. By the way, just in case, the spring on the thermostat gets installed down. Make sure it's not backwards. No Collapsing - no spring - no backwards Thanks 70 Road Runner 528 HEMI 4sp FY1 70 Road Runner 440+6 V-Code AG 4spd EV2 69 R/T 4 Spd Dana 3:54 AG Vert B5 69 R/T 4 Spd Dana 3:54 AG X9 V1X V8R-WORKING 69 R/T Auto/Console 8.75 SG Vert R/T B3 08 Challenger 1st Edition Hemi Orange 69 Super Bee 4 Spd 8.75 SG AG F8

Re: REBUILT 440 ENGINE overheats - HELP. [Re: Performance Only] #1513430 10/08/13 10:05 AM 10/08/13 10:05 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	OK, (1) the stat is good (opens at or near the correct rating I'm assuming). (2) The overheating vanishes when the stat is taken out. (3) it's installed correctly (spring down). It ain't making no sense. We gotta be missing something simple. I would get that temp gun live every 24 hour block of time like it's your last day on earth

Re: REBUILT 440 ENGINE overheats - HELP. [Re: RapidRobert] #1513431 10/08/13 10:36 AM 10/08/13 10:36 AM
Joined: Dec 2008 Posts: 1,336 Massachusetts, USA MASSMOPAR OP pro stock
MASSMOPAR OP pro stock Joined: Dec 2008 Posts: 1,336 Massachusetts, USA	Quote: OK, (1) the stat is good (opens at or near the correct rating I'm assuming). (2) The overheating vanishes when the stat is taken out. (3) it's installed correctly (spring down). It ain't making no sense. We gotta be missing something simple. I would get that temp gun The temperature is very cool on top of rad and very hot low on rad and very hot at pump housing. I'll get numbers with the gun later. 70 Road Runner 528 HEMI 4sp FY1 70 Road Runner 440+6 V-Code AG 4spd EV2 69 R/T 4 Spd Dana 3:54 AG Vert B5 69 R/T 4 Spd Dana 3:54 AG X9 V1X V8R-WORKING 69 R/T Auto/Console 8.75 SG Vert R/T B3 08 Challenger 1st Edition Hemi Orange 69 Super Bee 4 Spd 8.75 SG AG F8

Re: REBUILT 440 ENGINE overheats - HELP. [Re: 540challenger] #1513432 10/08/13 10:49 AM 10/08/13 10:49 AM
Joined: Feb 2003 Posts: 10,397 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,397 Someplace you aren't	Quote: Question on a big block can you reverse the intake gasket and block off the coolant passage i have seen that happen on other makes?? No, BB Mopars have no water in the intake. You can block the heat riser, but that has nothing to do with water. I want my fair share

Re: REBUILT 440 ENGINE overheats - HELP. [Re: MASSMOPAR] #1513433 10/08/13 12:29 PM 10/08/13 12:29 PM
Joined: Jan 2003 Posts: 28,124 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,124 Irving, TX	Quote: It is an after market water PUMP housing? Not sure why or if that would matter? That's why the upper hose is cool. It's on the floor. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: REBUILT 440 ENGINE overheats - HELP. [Re: 540challenger] #1513434 10/08/13 12:34 PM 10/08/13 12:34 PM
Joined: Jan 2010 Posts: 1,187 st.cloud fl D d-150 Smarter than a 5th grader?
d-150 Smarter than a 5th grader? D Joined: Jan 2010 Posts: 1,187 st.cloud fl	No coolant through. Intake

Re: REBUILT 440 ENGINE overheats - HELP. [Re: MASSMOPAR] #1513435 10/09/13 04:57 PM 10/09/13 04:57 PM
Joined: Aug 2008 Posts: 48 Minnesota, USA M minnesota guy member
minnesota guy member M Joined: Aug 2008 Posts: 48 Minnesota, USA	Thermostat first. Check for cracked block issues...Do you know history on the block? How long run it w/o thermostat? If it doesnt go pst 170 degrees after 1/2 hour driving it, it is just a thermostat. in upside down.

Re: REBUILT 440 ENGINE overheats - HELP. [Re: minnesota guy] #1513436 10/09/13 05:50 PM 10/09/13 05:50 PM
Joined: Apr 2009 Posts: 683 Northern NJ 68 Sat mopar
68 Sat mopar Joined: Apr 2009 Posts: 683 Northern NJ	I had the exact same problem and spent a small fortune trying to fix it. At the end of the day it was the MP non adjustable advance in the distributor (sp?) that was causing my issue. I changed to a Mallory unit and solved my overheating problem instantly. The way it was explained to me was if the advance is not adjusted properly it will cause the engine to run hot. My explanantion is elementary but I hope you get the jist...good luck. 7881701-engine.jpg (53 downloads) 1963 Chrysler 300 Pace Setter Convertible 21K mile survivor 1969 Dodge Coronet 500 1956 Desoto Hemi 1955 Chrysler C300

Re: REBUILT 440 ENGINE overheats - HELP. [Re: feets] #1513437 10/09/13 06:09 PM 10/09/13 06:09 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: Quote: Facts: Both pumps/impellers turn clockwise - Both impellers are faced the same. Neither is backwards. The blades themselves are curved the same way. Quote: Do ya think installing the left pump non ac will make any difference? No. You are moving water. I'd stick the first pump back on and follow the advice I posted on the other thread. You could have saved the time and trouble of pulling the pump. Get an IR temp gun. Start looking for odd heat patterns. Read that post I linked earlier. There are no secrets in overheating issues.You can probably diagnose that thing in less than 10 minutes with a temp gun. Not if it's a tuning problem which I'm betting it is just as long as he has a spring in the lower hose. Another thing I would ask the OP is, did you purge the system of air? Did you drive the car or it just idling in the driveway when it overheated?

Re: REBUILT 440 ENGINE overheats - HELP. [Re: 68 Sat] #1513438 10/09/13 06:11 PM 10/09/13 06:11 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: I had the exact same problem and spent a small fortune trying to fix it. At the end of the day it was the MP non adjustable advance in the distributor (sp?) that was causing my issue. I changed to a Mallory unit and solved my overheating problem instantly. The way it was explained to me was if the advance is not adjusted properly it will cause the engine to run hot. My explanantion is elementary but I hope you get the jist...good luck. Yup...

Re: REBUILT 440 ENGINE overheats - HELP. [Re: MASSMOPAR] #1513439 10/09/13 06:18 PM 10/09/13 06:18 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	Quote: Quote: Does the lower hose have a spring in it to keep it from collapsing? It might not collapse without a stat in it but it will when the coolant gets pressurized against the stat. By the way, just in case, the spring on the thermostat gets installed down. Make sure it's not backwards. No Collapsing - no spring - no backwards Thanks How in the hell do you know when your driving down the road that the lower hose is not collapsing? if it don't have a spring inside the lower hose?. If it doesn't have a spring than that's the part of the problem!!!

Re: REBUILT 440 ENGINE overheats - HELP. [Re: Challenger 1] #1513440 10/09/13 06:24 PM 10/09/13 06:24 PM
Joined: Jan 2003 Posts: 28,124 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,124 Irving, TX	Quote: Quote: There are no secrets in overheating issues.You can probably diagnose that thing in less than 10 minutes with a temp gun. Not if it's a tuning problem You can diagnose that with a temp gun too. The entire cooling system will heat up properly but won't level out. Temp will drop across the radiator and there will be no crazy hot spots on the cooling system but the exhaust manifolds (and heat crossover if used) will be scorching hot. That's when you start looking at the tune. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

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