Heater/AC blower motor - how know if running backwards? (Page 1/1)
John W. Tilford JUL 29, 06:51 PM
Just installed a Four Seasons blower motor for my 1988 GT. Direct substitution. Motor even came with instructions for reusing cooling tube.

Some Forum comments say [paraphrased] "Some replacement blower motors rotate backwards compared to Fiero original." The squirrel cage blades are concave on one side and convex on the other. I'd assume the concave-first rotation would move more air but how will I really know if the rotation is backwards? Only way to take it out again and apply 12 volts?

By the way, the only crud and debris I found were inside the original motor housing. I pulled out the cooling tube and a ball of assorted fibers was visible inside.

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John W. Tilford

John W. Tilford JUL 30, 09:11 AM
Blower motor works fine. The subdued whisper compared to the previous whining is well worth $30.

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John W. Tilford

olejoedad JUL 30, 09:54 AM
Did the unit come with the blower wheel installed, or did you need to reuse the original?
Spoon JUL 30, 10:06 AM

quote
Originally posted by John W. Tilford:

Only way to take it out again and apply 12 volts?




Better way is to hold a $5 bill in front of air duct and see if it sucks it in or blows it towards you. I believe the electric connector is idiot proof, but I've been wrong before.

Ps: No offense, just a bit of humor. Glad you got it worked out.

Spoon


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"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut

John W. Tilford JUL 30, 06:23 PM
Olejoedad and Spoon,

Four Seasons motor did not come with a fan, reused the old. Luckily realized I also needed the "spacer/clip/thing" which prevents the fan from sliding too far down the shaft toward the motor proper when the retaining hex nut is tightened. Also reused the cooling tube as helpfully guided by instructions packed with the motor.

Spoon,

I had to quickly terminate the highest speed on the blower test. $5 bills were filling up the cabin!

Which reminds me of buying a sandwich out of a vending machine in the Indiana University, Bloomington campus, heating and cooling shop break area. Summer 1970 just after my freshman year. Poor student working a "poor student" helper job. All I could afford was a meatloaf sandwich. Whatever it cost was a nickel less than would normally be inserted, maybe 95 cents. I put in four quarters, the meatloaf door was unlocked/enabled, I opened the door and took out the sandwich. A nickel dropped into the change tray. Then another nickel. Then another. They were starting to overflow the change tray. I filled up both my front jeans pockets with nickels. Walked away rich and with a sandwich!
Next day, hit the machine again. Another two pockets of nickels.
Next day, some bastard had fixed the machine.

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John W. Tilford

Spoon JUL 30, 07:03 PM
Must be something about the numeral "5".

Spoon

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"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut

Patrick JUL 30, 07:37 PM

quote
Originally posted by John W. Tilford:

A nickel dropped into the change tray. Then another nickel. Then another. They were starting to overflow the change tray. I filled up both my front jeans pockets with nickels. Walked away rich and with a sandwich!



Reminds me of my first experience with a slot machine. A friend and I went on a driving trip (from Canada) in 1976 through various western US states, including Nevada. I forget if it was Vegas or Reno, but we were curious to try slot machines when we got the opportunity. I'm not kidding... the very first coin (a nickel) I dropped into a slot machine, I hit the jackpot! Bells went off, lights were flashing! All these nickels spilled out at the bottom. I frantically filled up my coin containers, but I wanted to get away from the slot machine as quickly as possible, as we were both only 20, and therefore underage. I didn't want to take the chance of maybe being kicked out of the casino. So with great stealth, I moved far away from the noisy flashing slot machine. I didn't realize the purpose of the bells and flashing lights on the slot machine was to alert the floor staff to pay the bulk of the jackpot to the winner!