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Thread: All Things Chev

  1. #971
    ......... MB's Avatar
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    Cheers Ralph mate! Any idea why this jobbie is cooking and dropping off when it does? It will come back to life tomorrow morning I believe:-(


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  3. #972
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    Quote Originally Posted by MB View Post
    Cheers ET! Our PS pumps live up there on these jiggers.
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    OooooKaaaay...
    My ALT lives where your PS pump lives
    My A/C lives where your Alt lives
    My P/S pump lives down below my A/C (maybe where your A/C lives?)
    All driven off the Serpy
    My Endless Air Comp lives between and outboard of the A/C and the P/S pump and is driven by that dinky 2nd belt off the A/C
    My Serpy belt tensioner lives between the Alt and the Water Pump
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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  5. #973
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    2 things, air flow or pulley speed.
    Alternators generally need to spin at a certain speed to generate current, if it is too slow, you may be overloading it.
    6.5 don't rev that high, so maybe it's revs?
    Have a look at the Alternators stateside and see what pulleys they run on their 6.5s.

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    Quote Originally Posted by poindexter View Post
    the external fan alternator in the pic, needs to rotate in an anti-clockwise direction
    100% spins clockwise on a TD

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  7. #975
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    I can now see tiny little fan blades inside its front cover, seriously small blades though, much like a few 2cm x 1cm paddles and say 10 of them at best.


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  8. #976
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    Quote Originally Posted by poindexter View Post
    snip...
    From my days at Bosch, I thought the air flow runs front to back. I could be wrong, it was quite some years ago.
    ROFL, I thought it twas the other way, just as likely I'm wrong :-)
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

  9. #977
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    Quote Originally Posted by MB View Post
    I can now see tiny little fan blades inside its front cover, seriously small blades though, much like a few 2cm x 1cm paddles and say 10 of them at best.


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    Yep... sure will be... as prev posted by PD all Alts have fans BUT might will pay to make sure your DOR is correct as stated by the Manuf otherwise the Alt will overheat internal or external fan regardless
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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  11. #978
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    Quote Originally Posted by poindexter View Post
    2 things, air flow or pulley speed.
    Alternators generally need to spin at a certain speed to generate current, if it is too slow, you may be overloading it.
    6.5 don't rev that high, so maybe it's revs?
    Have a look at the Alternators stateside and see what pulleys they run on their 6.5s.
    Agree... ALTs are normally geared up as much as 2 on Pettys to 3 times on Diesels relative to engine RPM.

    If the RPM of the Alt is low or the DOR wrong they will get hotter than they should.
    Dunno if that is your prob but def where I would start looking
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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  13. #979
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    AB’s a little busy, just kindly had @matfew also confirm his GQ alt is clockwise from front viewing.
    It was an older Ebay purchase advertised as for GQ so unsure of how I can check by myself its DOR design now :-( ?


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    Quote Originally Posted by MB View Post
    AB’s a little busy, just kindly had @matfew also confirm his GQ alt is clockwise from front viewing.
    It was an older Ebay purchase advertised as for GQ so unsure of how I can check by myself its DOR design now :-( ?


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    Is your Alt rotating clockwise like a GQ? If so you would think the Alt is set correctly if it was supposed to be for a standard Q
    Otherwise, if you can eyeball the internal blades set to pull air from the rings, over the stator and expel at the front when rotated the way your setup.

    It should be OK as the only way to reverse the DOR is like with a Serpy IE where you can run a belt 'under' a driven pulley (gives CCW DOR) as as opposed to 'over' (gives CW DOR)
    Last edited by the evil twin; 21st January 2018 at 05:37 PM.
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

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