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Thread: Bus is overheating.
          
   
   

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  1. #16
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
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    when not being powered--pusher fans are like free wheeling propellers on aircraft engines--they effectivally block the whole circle, not just the blade area------
    johnboy, rspears and 40FordDeluxe like this.
    By popular opinions-just a grumpy old man key board bully--But really, if you are going to ask for help on an internet site, at least answer questions about what you are asking about-----

  2. #17
    johnboy is offline CHR Member Visit my Photo Gallery
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    It's a puller type fan, but I don't know what amperage is available to it. Or what amperage it operates at.
    I also have no idea of what its CFM rating is.
    The link Mike Patterson posted was good (and informative,) reading, as was 'the book' by 36 Sedan, and a host of other comments tended to confirm all this.
    So I'm going to have to do a bit of homework on the thing, initially finding out what amperage is available to the fan, find out what amperage the fan utilises (is the motor too small for the job?) what the CFM rating is, and maybe start looking for a Lincoln Mk VIII fan. (Although I doubt I'd find one here in New Zealand!)
    I've already cut back when the fan kicks in, it was around the 180 mark; so I cut it back to around 160, figuring if I started it colder it may not rise quite so far.
    But that didn't work.
    But it was worth a crack.
    It's not an urgent must-be-done-tomorrow job, most all of our cruising this summer will be rural to a venue, park up, sit around, drink beer and tell lies with friends.
    (Think Coxy and Hippy Mr Spears...they're a laugh a minute. And as you know; there's many more like them out there.)
    Then another rural drive home.

    So I'll find out what I need to know about the existing set up, then with the information/knowledge/ideas you people have given me work out what I'm going to do about it.
    Many thanks for your input; you fellas never cease to amaze me.

    And maybe fit an oil cooler too. Every bit helps.
    johnboy
    Mountain man. (Retired.)
    Some mistakes are too much fun to be made only once.
    I don't know everything about anything, and I don't know anything about lots of things.

    '47 Ford sedan. 350 -- 350, Jaguar irs + ifs.
    '49 Morris Minor. Datsun 1500cc, 5sp manual, Marina front axle, Nissan rear axle.
    '51 Ford school bus. Chev 400 ci Vortec 5 sp manual + Gearvendors 2sp, 2000 Chev lwb dually chassis and axles.
    '64 A.C. Cobra replica. Ford 429, C6 auto, Torana ifs, Jaguar irs.

  3. #18
    rspears's Avatar
    rspears is online now CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by johnboy View Post
    It's not an urgent must-be-done-tomorrow job, most all of our cruising this summer will be rural to a venue, park up, sit around, drink beer and tell lies with friends.
    (Think Coxy and Hippy Mr Spears...they're a laugh a minute. And as you know; there's many more like them out there.)
    Then another rural drive home.
    I would think that Coxy can provide some ideas on your fan! As for the laugh a minute, there're several that fit into that mix but Sharpy has got to be in there too!
    johnboy likes this.
    Roger
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  4. #19
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by johnboy View Post
    Crikey!

    Thanks for all the info, I'm a bit overwhelmed!

    I've copied it all off; now I'm going to have to sit down and read it all and try to assimilate it.

    Thanks again to you all, much appreciated!
    Obvious case of worn out blinker fluid, go synthetic!
    johnboy likes this.
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  5. #20
    johnboy is offline CHR Member Visit my Photo Gallery
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    We seem to have fixed it. We went through 36Sedan's checklist, (apart from the carburetion, she's fuel injected,) and it all checked out.
    Roger Spears made the point about air flow. That got thought about very deeply.
    Firebird's idea too was given a lot of deep thought.

    We went to a mate's 70th birthday party a week or two ago, hot rodders and bikers were there in their dozens, and much thought and talk evolved around our overheating problems.
    Murray Lincoln came up with the same salient point as Roger Spears did: 'It's all about air flow".
    He'd had the same problem with a car of his, and how he remedied it was to put louvres into the inner guards, to let the hot air dissipate more easily.
    And it worked.
    So once home we went through to Grub Jones' (a hot-rodding mate,) garage and mooted the idea to him.
    Everybody could see the logic of this idea, but Grub said "Let's go one better and put fans in the inner guard, controlled by a switch on the dashboard. If you see the temperature gauge rising; punch the switch".
    So that's what we've done.
    It got a real tryout today when I brought it back home, where I struck every bloody traffic light at yellow and had to wait through every full cycle, had to follow some clown the full length of Molesworth St at 20 mph…that would’ve had her boiling twice over before. Now the temperature gauge never rose above 175*.
    And that’s all good.
    Thanks for your help people, your thoughts/ideas (which I copied down from here,) were discussed at great length on the other side of the world.
    I'm truly grateful and appreciative for your help and knowledge.
    Last edited by johnboy; 01-27-2021 at 08:40 PM.
    johnboy
    Mountain man. (Retired.)
    Some mistakes are too much fun to be made only once.
    I don't know everything about anything, and I don't know anything about lots of things.

    '47 Ford sedan. 350 -- 350, Jaguar irs + ifs.
    '49 Morris Minor. Datsun 1500cc, 5sp manual, Marina front axle, Nissan rear axle.
    '51 Ford school bus. Chev 400 ci Vortec 5 sp manual + Gearvendors 2sp, 2000 Chev lwb dually chassis and axles.
    '64 A.C. Cobra replica. Ford 429, C6 auto, Torana ifs, Jaguar irs.

  6. #21
    34_40's Avatar
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    That's good news JB. Nice to hear the bus can do the elephant walk again! 8-)
    johnboy and rspears like this.

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