Question about 1987 Ford Ranger

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In what direction should the plastic, 8-blade, aftermarket replacement for the metallic OEM fan turn when installed?

In other words, the fan blades each have a thick, squared off edge and a thinner, flare-curved (feathering) edge, but which fan blade edge is leading and which is trailing as over all fan turns with the engine? The fan was sold by Autozone or maybe by Kragen. It is white in color. I cannot figure how to post a picture.

Posted by Stephen Peter Ross on

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jeff5may32

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Find me helpful, the feathered edge is always the trailing edge. Find my other posts to your same question helpful, The B side, thick edge goes towards the engine on your belt-driven ford ranger fan. This is not rocket science. In what direction should the plastic, 8-blade, aft - in-direction-plastic-8-blade-u40lsvyytnuesyuv3fbafhtd-1-0.gifa picture just 4u.

Posted on Jan 04, 2015

  • Stephen Peter Ross
    Stephen Peter Ross Jan 05, 2015

    But wait. That one seems to have the fan on backward, feather edge trailing (if ccw) or leading (if cw), and untorquing the LHT nut (at max airflow (toward the radiator). I used to see that kind of thing as a pubs director, when some draftsmen are left on their own with no tech support. Looks to me like the fan is "flying" the wrong direction. Good chance also of that happening in the digital CAD world, where all drafting sheets are transparent.

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Charles Howard

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I;ll guess you are talking about the fan that cools the engine. If this is the case the fan will (in most cases) be located behind the radiator. If this is the case install the fan blades so it will pull air through the radiator. However if this is an electric fan that is mounted outside the radiator, then install the fan to push air into the radiator. Hope this helps.

Posted on Jan 01, 2015

Testimonial: "I have all that but the clutch will mount to the fan hub on both sides so the the blades leading edges lead and trailing edges trail (the fan blades do not go backwards). I need to know which is the leading edge of each blade so that it draws air and turns smoothly and quietly without turbulence or excess vibration leading to damage. I have tried posting a photo but that does not seem to work."

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