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  1. Inertia

    Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

    ...as more heat is created in the coolant. Thermostats generally fully open once coolant temp exceeds a few degrees over stat rating. If you have a 180* stat, and engine runs 200, your system has no reserve to "work". Years ago I tried to get overheat issues diagnosed with a heat gun or...
  2. Inertia

    Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

    I've often mused how raw water cooled boats (inboards and outboards too) running in various raw water temps from 32* melting glacial lakes, oceans, as some of my boats have been, how they maintain the 140* engine running temps that raw water thermostats run, (to avoid mineral (salt) crystalizing...
  3. Inertia

    US and CA heater core differences?

    We generally upped the thermostat to a 195*, gave warmer air outta heater. Hence the " summer/winter" thermostats I remember as a kid. Cheers
  4. Inertia

    Which thermostat to go with 185/175 temp sensor?

    There are misc on/off temps for fan switches. Use them on racecar. Selection here. I use one comes on 200, off 160 ish Good luck...
  5. Inertia

    Guess this mean I need a heater core

    Check the heater hose clamps are tight, they can send a fine spray in the most unbelievable directions, and thru the firewall .
  6. Inertia

    Dart cooling system

    Lotta damage is electrolysis. When we checked antifreeze, looking for "clean and green, good to -35* ", - we'd also check PH and often give the coolant a little ph + or - when nec. Simple litmus paper test, or "ph" pen . (Swimming pool chems) When a car blows a head gasket, the coolant can get...
  7. Inertia

    1973 Dodge Dart Sport No Heat.

    ...hose temp. If you need to go borrow the wife's/neighbors meat probe, same think, stick it into coolant at rad cap. The coolant temp needs to be +160* to get "warm" air outta the heater duct. If the thermostat is stuck open, the heater hoses will feel warm, but not near hot enuff. For decent...
  8. Inertia

    '66 Valiant Running Hotter than Expected

    Very, very nice rides, I do beg to differ with the hoses sucking closed, as thru the decades of experience, I have actually seen it occur, but most folks don't look at the bottom rad hose, if it can be seen, and don't look at it when revving at hiway speed. I've literally seen a few hoses suck...
  9. Inertia

    '66 Valiant Running Hotter than Expected

    ...really hot, does the rad shed sufficient heat, is the rad plugged with bugs, does it have a partial plugged core, bottom hose sucks shut closed on high rpm, - stuff like that . lol If the rad is shedding 100* and it's still getting hot, and your other car is only shedding 70* and stays...
  10. Inertia

    '66 Valiant Running Hotter than Expected

    We have to get over 135 posts for this to be a valid thread, like the others .
  11. Inertia

    '66 Valiant Running Hotter than Expected

    Rad temps, top hose fitting, bottom fitting . Then go check same on one of your other cars .
  12. Inertia

    Anyone recognize this?

    If nec. It looks like a common plumbing ball valve could be adapted to the pod, or even as a temp on/off .
  13. Inertia

    Mechanical fan + pusher fan question

    I would encourage you to review some of the "overheat" threads, I'm fairly sure that fan assembly made it to the "frisbee" across the backyard list . Lotta bucks as I remember, didn't fly worth a chit either . IIRC Good luck .
  14. Inertia

    Radiator-Temperature

    Thank-you very much .
  15. Inertia

    Radiator-Temperature

    Again, note the hose is not the place to shoot the temps. Good work Dana, great pix, I coulda used those a decade + ago. OP good job on original pic, thnx Cheers.
  16. Inertia

    Radiator-Temperature

    OP. Could you post a similar pic from the front please? If possibly, could you go shoot a similar pic from either front or back of any other vehicles you have access to, see if you can reach a conclusion. A post here might be nice, thank-you.
  17. Inertia

    Radiator-Temperature

    Wrong . If the tubes weren't blocked,- I would expect the center tubes to be hot at the top, and getting progressively cooler towards the bottom, - if they were flowing any hot coolant, - wouldn't you ?
  18. Inertia

    Radiator-Temperature

    Pic says it all . There's partial to total blockage of the tubes in the middle, the hot coolant is doing it's best to pass whatever coolant it can down thru the few tubes on the sides. If you drag your knuckles across the rad, the center tubes would be cool compared to the outer tubes. Looking...
  19. Inertia

    Thinking of going clutch factory style radiator cooling fan..

    The last Jag fan I saw, used a far different "fan" than Mopar . Lotta folks look, don't measure, only to find they "just" fit, after dozens of posts . My son's is 1/4 inch away, trans mount is captured, engine won't shift far forward . ( 8 yrs. of spirited driving) Good luck...
  20. Inertia

    Thinking of going clutch factory style radiator cooling fan..

    Here's an old thread how to shorten an alum pump, to replace the cast pump, to be able to the same rad outlet. I often just move the rad outlet to the other side. https://www.forabodiesonly.com/mopar/ams/how-to-short-nose-water-pump.141/
  21. Inertia

    Thinking of going clutch factory style radiator cooling fan..

    There are clutch fans that have different degrees of slippage at temp, and "free-wheel" at speed/temp. and don't spin over 4000 rpm, so they don't rob as much power as some would have you believe . @AJ/FormS has a buncha info, he likes Ford clutches, think they are short, and visibly similar.
  22. Inertia

    Am I going to throw a belt doing this?

    The way I read it, he's going to run a fan/alt/water pump belt on the inner groove, with the outer belt as shown, or did I read wrong ? Bottom pulleys equal size . Water pump is merely an idler/guide for the outer belt.
  23. Inertia

    Is it time for a new radiator?

    When hot, - Shoot the temps of the upper and lower rad fittings, not hoses. You need 30* min, 50* or better drop in temp from top/bottom. If there's little drop, - Shoot temps across rad, half way down. Cool areas are plugged tubes, not flowing coolant, the bigger the cool area, the bigger the...
  24. Inertia

    451 overheating, even when moving

    Thanks for reporting the results. Curious about the up and down hose temps now. Hope you get lotsa miles, and lotsa smiles . Cheers
  25. Inertia

    451 overheating, even when moving

    If you rev that engine and watch the fan blades, they will actually flex forward towards the rad, reducing the distance more with higher rpm . The motor won't move much, as the rear mount is captured by the rear crossmember . My son's clutch is about 1/4 inch from the rad, he's a very spirited...
  26. Inertia

    451 overheating, even when moving

    I apologize, I missed the upper/lower rad temps . You appear to be getting only 15* of temp drop thru your rad, that might be enuff for a garden tractor . lol If you take the temp gun, and shoot all across the rad, about halfway down, you will likely find cool/cold areas, those are plugged tubes...
  27. Inertia

    451 overheating, even when moving

    It is not uncommon for there to be a surge of water out the top as the thermostat opens, it'll puke some then, the coolant will then settle to about an inch or so below top, and circulation should be visible from the opening . The other overheat thread currently running has just had his plugged...
  28. Inertia

    451 overheating, even when moving

    Do yourself a favor, and go out to your reg vehicle when hot, or a neighbor/friend, and shoot the temps on the upper and lower hoses on it, for a reference .
  29. Inertia

    Water… Distilled? Purified? Hose??

    Lost my first hemi that way, unexpected flash freeze .
  30. Inertia

    Water… Distilled? Purified? Hose??

    I know mosta you folks know this, someone may not - - - Please lift and cover any containers with coolant. Animals that ingest coolant die a very cruel, painful death, including blindness, organ failure. This includes spillage that thirsty birds, and all living creatures need. Thank-you .
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