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Re: I give up, 440's just run HOT [Re: RapidRobert] #66194
06/05/08 04:29 PM
06/05/08 04:29 PM
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa Offline OP
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Quote:

Oh I misunderstood I thought it happened all of a sudden.if its perfectly ok when moving but the temp starts to creep up at idle I gotta go back to what has been mentioned earlier not enough either air flow or water circulation(or a combination of both) but you've covered about everything so something that has already been touched on is not doing it's job. If I had to GUESS if I was sure that there was plenty of air flowing thru the rad then I would bite the bullet & get a better radiator(more area,more cores).The more I think about this if it was my deal I would buy a GOOD radiator.




I have a GOOD rad, actually it cooled fine last year it's just this summer. I don't want to throw parts at this and waste $$$$, everything is new....it's gotta be something else; the cooling system is fine. You can feel the air flow at idle at the grille outside the car and it feels quite strong. If i open the hood you feel tonns at air come thru the rad. it easily sucks up a sheet of paper to the face of the rad...i don't see buying a new rad as a solution...

Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66195
06/05/08 04:41 PM
06/05/08 04:41 PM
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Lincoln Nebraska
RapidRobert Offline
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alright you've got me convinced,it sure doesn't sound like a rad or airflow problem like I got convinced it was. I was ready to bet my last buck on(radiator) BUT hot at idle,not when moving sure sounds like classic not enough either air or water movement. I give(for now)


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Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66196
06/05/08 05:00 PM
06/05/08 05:00 PM
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Kalispell Mt.
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HotRodDave Offline
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If you idle with the hood up does the temp still creep up?


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] #66197
06/05/08 05:11 PM
06/05/08 05:11 PM
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Posts: 1,220
toronto canada
69chargeryeehaa Offline OP
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Quote:

If you idle with the hood up does the temp still creep up?




well in gear yes, idle the N or P with the hood open or closed, perty much stays 180-185.

Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66198
06/05/08 05:39 PM
06/05/08 05:39 PM
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JohnRR Offline
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Quote:

Quote:

If you idle with the hood up does the temp still creep up?




well in gear yes, idle the N or P with the hood open or closed, perty much stays 180-185.




it will creep up when you are in gear because the trans fluid is getting hotter whe you are braking against the convertor

Re: I give up, 440's just run HOT [Re: IronWolf] #66199
06/05/08 06:17 PM
06/05/08 06:17 PM
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Posts: 3,131
across the river from Portland...
472 R/T SE Offline
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Quote:

Think your block passages are pristine ? If you haven't had it hot tanked yet, knock out one of the core plugs and tell us what horrors you see !!




I have to agree with this.


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Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66200
06/05/08 07:29 PM
06/05/08 07:29 PM
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Posts: 921
Chicago illinois
ChinooK440 Offline
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yes but this same rad did cool the car, now all of a sudden running hot, surge at cruise, heating at idle, and it DIES at 190-195????




You definetaly have other issues . 10 or 15 degrees from the "magical" 180 mark souldn,t cause your engine to stall out .

Have you ever tested the fuel pump output?

It Could also be a weak igition box etc.

I,d try that new fuel pump and go from there .do a flow test on it to Make sure the fuel line /filter /sock aren,t partially clogged up which will be more apparent at operating temps . Also some 440 cars came factory with a fuel vapor sepertor which is basically a return line which couldn,t hurt . Most parts stores carry fuel filters like this but you would have to run a return line back to the tank.

Wouldn,t hurt to ditch that edelcrock carb either

Re: I give up, 440's just run HOT [Re: ChinooK440] #66201
06/06/08 12:28 AM
06/06/08 12:28 AM

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I've been following this one for curiousity's sake-one thing I thought of- maybe your damper has slipped and the timing is retarded. Confirm TDC.

Re: I give up, 440's just run HOT #66202
06/06/08 01:11 AM
06/06/08 01:11 AM
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Overland Park, KS.
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Joshs68 Offline
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try putting a cap on the vacuum advance . put all of the timing in mechanically. It is a free suggestion. put a piece of duct tape on it for a test if it works spring for a fancy nipple cover.
I have a 470" b engine with a 22" radiator. no fan shroud, 5 blade clutch fan. 34 deg total all mech. vac advance plugged. runs 180-185 deg.

Re: I give up, 440's just run HOT [Re: 472 R/T SE] #66203
06/06/08 10:16 AM
06/06/08 10:16 AM
Joined: Jan 2006
Posts: 1,220
toronto canada
69chargeryeehaa Offline OP
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Quote:

Quote:

Think your block passages are pristine ? If you haven't had it hot tanked yet, knock out one of the core plugs and tell us what horrors you see !!




I have to agree with this.




I don't know what i have to say for you guys to stop with the dirt in the motor, it's a <10000mi build that was hot tanked, cleaned by a rep machine shop. Plus the rad is new and a 3 core i just looked at it with the fluid drained; which by the way looks like it's new out of the bottle. IT'S NOT THE RAD/BLOCK, 110%. I would consider a blown head gasket before i suspect a good motor build/new rad for crud.

Re: I give up, 440's just run HOT #66204
06/06/08 10:20 AM
06/06/08 10:20 AM
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Posts: 1,220
toronto canada
69chargeryeehaa Offline OP
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Quote:

I've been following this one for curiousity's sake-one thing I thought of- maybe your damper has slipped and the timing is retarded. Confirm TDC.




That would be un-likely, since I've advanced it (with vac plugged) and went WOT until I got ping (which was around 38deg total mech adv), and then backed it off to 35, plus it starts perfect, almost instantly no kick back on the starter. Also the damper was new when the motor was rebuilt, and the PO marked the outer ring, and inner hub before he installed it, and they line up still....

Re: I give up, 440's just run HOT [Re: Joshs68] #66205
06/06/08 10:22 AM
06/06/08 10:22 AM
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Posts: 1,220
toronto canada
69chargeryeehaa Offline OP
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Quote:

try putting a cap on the vacuum advance . put all of the timing in mechanically. It is a free suggestion. put a piece of duct tape on it for a test if it works spring for a fancy nipple cover.
I have a 470" b engine with a 22" radiator. no fan shroud, 5 blade clutch fan. 34 deg total all mech. vac advance plugged. runs 180-185 deg.




actually last time i was out, when it ran hot, i stopped at a park, and let it cool off. I always keep caps on exposed studs in the engine bay for when i'm checking timing, i disconnected the vac adv on the drive home, and capped the carb port, still the same, at the few lights i stopped at it crept and was still running like a$$....

Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66206
06/06/08 02:24 PM
06/06/08 02:24 PM
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michigan
black64 Offline
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You have covered a lot of areas, but are you sure you do not have any vacuum leaks at the intake that would lean out your fuel mixture at idle causing the temp to rise?

Re: I give up, 440's just run HOT [Re: black64] #66207
06/06/08 02:34 PM
06/06/08 02:34 PM
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toronto canada
69chargeryeehaa Offline OP
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Quote:

You have covered a lot of areas, but are you sure you do not have any vacuum leaks at the intake that would lean out your fuel mixture at idle causing the temp to rise?




Well this was my train of thought, the car has 17" of vaccum at idle hot in gear (650-700rpm). So i could possibly rule out the intake as leaking. I did re-torque it, it was not loose at all, nice and tight.

I changed the fuel pump, filter, and i'm going to completely take the carb apart and clean it (hopefully i'll find something). If all that checks out ok, i'm going to then concentrate on iginition. Maybe something is getting hot/failing like the ecu, coil, ballast resistor, pick-up. i'll change one part at a time to see if it gets fixed.

If that does'nt work, I TOTALLY GIVE UP!!!

What i have just done:
-flush/drain cooling system (old coolant by the way was like NEW/very clear/clean).
-new rad cap.
-high flow stat 180.
-milodon high flow water pump.
-new heater hoses (were too close to exhaust manifolds).
-new carter fuel pump and new fuel filter.

When i start it, i'll re-adjust the idle mixture with a vac guage, check timing, and

At this point i'd be happy if the car would run 190ish and NOT DIE on me. If it'll hold temp at under 200 when it's hot and not die i'd be happy as a pig in $hit!!!!.

Also today is stupid hot in Toronto, so tonite will be a good test, wish me luck.


Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66208
06/06/08 02:35 PM
06/06/08 02:35 PM
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U.S.S.A.
JohnRR Offline
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whats your convertor , stock ?

Re: I give up, 440's just run HOT [Re: JohnRR] #66209
06/06/08 02:40 PM
06/06/08 02:40 PM
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Posts: 1,220
toronto canada
69chargeryeehaa Offline OP
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Quote:

whats your convertor , stock ?




yes, stock. everything is stock except for the new parts i just put on, eddy CH4B intake, and eddy 750 afb carb, TTi 2.5 exhaust with h-pipe, stock exhaust manifolds, 70+ voltage regulator with 3 wire alt, mp perf ele ign.....

Re: I give up, 440's just run HOT [Re: 69chargeryeehaa] #66210
06/06/08 04:47 PM
06/06/08 04:47 PM
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God's Country Maryland
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Remove one spring from the distributor weights and slightly stretch the other one. You don't have enough INITIAL advance.


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Re: I give up, 440's just run HOT [Re: GODSCOUNTRY340] #66211
06/06/08 04:58 PM
06/06/08 04:58 PM

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I hate to beat a dead horse, but you really need to find out if it is overheating because of lack of cooling (radiator, pump, airflow) or if the engine is generating too much heat (mixture, timing, vacuum leaks). Until you figure out which it is, all of this is guessing and throwing parts at it.

Besides, I thought it was OK again now.

Re: I give up, 440's just run HOT #66212
06/06/08 08:43 PM
06/06/08 08:43 PM
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Western Colorado
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Re: I give up, 440's just run HOT [Re: 340Scamp] #66213
06/06/08 08:48 PM
06/06/08 08:48 PM

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If you want to test the advance theory, there is no need to mod or remove springs. His problem is at idle, so all he has to do is advance his base timing to see what happens.

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