|
I give up, 440's just run HOT
#66094
05/30/08 11:24 AM
05/30/08 11:24 AM
|
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa
OP
pro stock
|
OP
pro stock
Joined: Jan 2006
Posts: 1,220
toronto canada
|
ok, here's the deal, 69 charger r/t, 440/727/8.75 with 3.23. Stock 440 with eddy CH4B intake, eddy 1411 750 afb. New stock rad, shroud, stock fan, 180*deg stat, electric fan on front (pusher), insulating carb gasket/spacer. That's what I'm working with. It seems like whenever it gets warmer, the car just starts to run hot only when sitting at a light, drive thru, ect.... Timing is perfect, 15*deg initial, 35 total, 14 vac. Plugs look perfect, the car runs perfect. Driving temp is always 185*deg, but when you sit at a light, it creeps up to 190, sitting in a drive thru last night and it went to 200 and then started running like crap.  I just don't get why this thing runs hot, my old charger, identical setup (intake, timing, carb, ect...) did the EXACT same thing. Coolant is clean, recently changed, hoses are not collapsing, thermostat confirmed on the stove, engine has perfect compression, no oil use, <10000mi on rebuild, no crud in the motor/rad it's all NEW. Someone please tell me a solution, this is driving me nuts I've tried everything to solve this nothing works. The electric fan just prolongs the temp creep up, but it still gets to 195+ and then starts running like crap. I've changed the:coil, ecu (chrome), plugs, wires, dist pickup, ect....EXACT SAME THING. It's not a ignition issues, it seems to be a carb issue when it runs bad when getting hot, but if it didn't run hot it would run perfect..IDEAS????? or is this just the way it is????   
|
|
|
Re: I give up, 440's just run HOT
[Re: 69chargeryeehaa]
#66097
05/30/08 11:39 AM
05/30/08 11:39 AM
|
Joined: Aug 2006
Posts: 2,497
God's Country Maryland
GODSCOUNTRY340
top fuel
|
top fuel
Joined: Aug 2006
Posts: 2,497
God's Country Maryland
|
Here's one quick and easy thing to try. Set your initial timing to 20 degrees and see what happens. This may cure your problem. If it does, just work your dist. to adjust total timing.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
|
|
|
Re: I give up, 440's just run HOT
[Re: GODSCOUNTRY340]
#66098
05/30/08 11:56 AM
05/30/08 11:56 AM
|
Anonymous
Unregistered
|
Anonymous
Unregistered
|
Has the 440 been taken down and completely cleaned out? (hot tanked)
I know you said you put in a new radiator etc. but here is a problem I used to have:
Every '71 model vehicle that our family has owned would overheat. We'd boil out the radiator and that would help for about 6-8 months and then it would start doing it again.
What I finally figured out was that casting sand from the factory was in the water passages of the engine block and would eventually make it's way into the radiator and partially plug it.
It was maddening until I finally took a 318 completely down to the block and found all kinds of crap in it.
I know you said stock fan but is it fixed or a clutch type?
I've always run the clutch type and never had a problem.
|
|
|
Re: I give up, 440's just run HOT
[Re: MoparforLife]
#66099
05/30/08 11:58 AM
05/30/08 11:58 AM
|
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa
OP
pro stock
|
OP
pro stock
Joined: Jan 2006
Posts: 1,220
toronto canada
|
Quote:
That extra fan is blocking more than it is helping.
it was doing the same thing before the electric fan.
|
|
|
Re: I give up, 440's just run HOT
[Re: bobby66]
#66100
05/30/08 11:59 AM
05/30/08 11:59 AM
|
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa
OP
pro stock
|
OP
pro stock
Joined: Jan 2006
Posts: 1,220
toronto canada
|
Quote:
I've got a similar combo and had a similar problem. Got rid of the pusher and the clutch fan and now run an 18" fixed steel flex-a-lite. Never seen 190 since I put it on. 4.30 gears, 70mph on the highway. No problem.
my issue is at idle, not at speed?
|
|
|
Re: I give up, 440's just run HOT
[Re: GODSCOUNTRY340]
#66101
05/30/08 12:00 PM
05/30/08 12:00 PM
|
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa
OP
pro stock
|
OP
pro stock
Joined: Jan 2006
Posts: 1,220
toronto canada
|
Quote:
Here's one quick and easy thing to try. Set your initial timing to 20 degrees and see what happens. This may cure your problem. If it does, just work your dist. to adjust total timing.
well, i really don't feel like re-curving the dist, at 15 initial it's close enough is'nt it? I was actually thinking about the opposite, running it at factory 5 deg initial??? would that make it run hotter???
|
|
|
Re: I give up, 440's just run HOT
#66102
05/30/08 12:03 PM
05/30/08 12:03 PM
|
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa
OP
pro stock
|
OP
pro stock
Joined: Jan 2006
Posts: 1,220
toronto canada
|
Quote:
Has the 440 been taken down and completely cleaned out? (hot tanked)
I know you said you put in a new radiator etc. but here is a problem I used to have:
Every '71 model vehicle that our family has owned would overheat. We'd boil out the radiator and that would help for about 6-8 months and then it would start doing it again.
What I finally figured out was that casting sand from the factory was in the water passages of the engine block and would eventually make it's way into the radiator and partially plug it.
It was maddening until I finally took a 318 completely down to the block and found all kinds of crap in it.
I know you said stock fan but is it fixed or a clutch type?
I've always run the clutch type and never had a problem.
the fan is fixed. I'm 1000% sure it's NOT anything in the engine, it was tanked, ect... the problem is NOT intermittent, it's exactly the same, when ever the outside temps rise, it starts to run hot only at idle...
|
|
|
Re: I give up, 440's just run HOT
[Re: 69chargeryeehaa]
#66103
05/30/08 12:05 PM
05/30/08 12:05 PM
|
Joined: Jan 2003
Posts: 74,947
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,947
U.S.S.A.
|
Quote:
Quote:
Here's one quick and easy thing to try. Set your initial timing to 20 degrees and see what happens. This may cure your problem. If it does, just work your dist. to adjust total timing.
well, i really don't feel like re-curving the dist, at 15 initial it's close enough is'nt it? I was actually thinking about the opposite, running it at factory 5 deg initial??? would that make it run hotter???
what dist is it ?
whats the bore size currently at ?
what fan setup and are the parts new or 40 years old ?
what tuning have you done to that carb ?
|
|
|
Re: I give up, 440's just run HOT
[Re: MoparforLife]
#66104
05/30/08 12:05 PM
05/30/08 12:05 PM
|
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
I agree about getting rid of the pusher fan.
200 will not hurt a thing. It sounds like you havea fuel line to close to the exhaust and when you are sitting still it is not getting enough fresh air blow through that area to keep it cool. This can also make it run lean and that can make it run hoter.
Also what percentage of antifreez to water are you running? Too much anti freeze reduces cooling ability. What Idle RPM? Where does the carb get air? Are you useing stock ratio pullys?I have a 4cyl 2.2 K-car fan on my cuda and hardly ever do I have to turn it on even at *90F. Only when I idle at the line at the bank for a long time, then is the only time I turn the fan on and the little 2 blade low rom fan cools it right down to 195 in nothing flat. I have a 195 T-stat. I used a laser temp gauge to find the hottest part of the radiator and put the fan directly over that area since the shroud only covers part of the radiator.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: I give up, 440's just run HOT
[Re: HotRodDave]
#66105
05/30/08 12:20 PM
05/30/08 12:20 PM
|
Joined: Dec 2007
Posts: 1,584
MD
p d'ro
pro stock
|
pro stock
Joined: Dec 2007
Posts: 1,584
MD
|
So you are using this 2.2 fan as a pusher. I also have a 440 in my 67 R/T that, at idle, gets up to 210. i know that is not a danger zone yet, but I have not let it sit for longer and fear w/ summer coming that it will continue to rise. I was told to get an elec. fan as a pusher, my current fan is fixed, 180 tstat, clean recored 4 core orig. radiator, etc. Will the pusher electric help?? My car still runs well at these temps. I fear this Charger has a fuel line, maybe metal, running too close to the block. I would move it or insulate it as my '68 Firebird had this issue and would eventually die until I let it cool for 1/2 hour... retarding the timing increases heat. I will advance a little more and see what happens and check that the fuel is not lean/// Any other suggestions for both of us. Sorry to partially hijack...
|
|
|
Re: I give up, 440's just run HOT
[Re: bobby66]
#66107
05/30/08 12:25 PM
05/30/08 12:25 PM
|
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa
OP
pro stock
|
OP
pro stock
Joined: Jan 2006
Posts: 1,220
toronto canada
|
Quote:
I've got a similar combo and had a similar problem. Got rid of the pusher and the clutch fan and now run an 18" fixed steel flex-a-lite. Never seen 190 since I put it on. 4.30 gears, 70mph on the highway. No problem.
you would'nt be able to reccommend a flexalite fan that would fit???? i'm really thinking it's a air flow issue at idle, i'd like to remove the electric fan and put a better fan on the car....
currently i have the fixed stock 7-blade fan and stock shroud.
|
|
|
Re: I give up, 440's just run HOT
[Re: 69chargeryeehaa]
#66109
05/30/08 12:33 PM
05/30/08 12:33 PM
|
Joined: Jan 2003
Posts: 74,947
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,947
U.S.S.A.
|
Quote:
Quote:
I've got a similar combo and had a similar problem. Got rid of the pusher and the clutch fan and now run an 18" fixed steel flex-a-lite. Never seen 190 since I put it on. 4.30 gears, 70mph on the highway. No problem.
you would'nt be able to reccommend a flexalite fan that would fit???? i'm really thinking it's a air flow issue at idle, i'd like to remove the electric fan and put a better fan on the car....
currently i have the fixed stock 7-blade fan and stock shroud.
what size spacer are you using ? how close is the fan itself to the rad ? how much of the fan is inside the shroud ?
what water pump are you using ?
what guage are you getting your readings from ?
|
|
|
Re: I give up, 440's just run HOT
[Re: JohnRR]
#66111
05/30/08 12:35 PM
05/30/08 12:35 PM
|
Joined: Jan 2003
Posts: 74,947
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,947
U.S.S.A.
|
Quote:
what dist is it ?
whats the bore size currently at ?
what fan setup and are the parts new or 40 years old ?
what tuning have you done to that carb ?
|
|
|
|
|
Good luck