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When my fan started squeeling I figured dry bearings. So I looked at the diagram of the blower, to see where the shaft to motor entries were.
Then I removed the front console and drilled a couple of holes near the shaft entry, positioned so that I could pop out the rocker switch plates for future access.
With fan on first tried WD40 to see if sound would go away. It did but it smelled up the car. So used electric motor oil SAE20 which is heavier and longer lasting. Working OK.
Patched holes with duct tape though may splurge and replace with rubber plugs.
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1980 245 Canadian B21A with SU carb and M46 trans
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