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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Mar 2001 Posts: 1,181 'Bolter | | 'Bolter Joined: Mar 2001 Posts: 1,181 | I pulled the heater assembly from under the hood of the '60 GMC. I understand how to get the heater checked, (by dipping and pressure check), but I think the blower motor may be bad, it was not connected to anything but it is kinda hard to turn. How do you test the motor to se if it turns?
thanks
Jake | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | if you can't spin it easily by hand, it needs to come apart and get cleaned and lubed - you can check it by holding the motor case against the ground batt post, and touching the wire to the pos post ... might just spark and grunt if it's semi-siezed up, but even if it runs, being hard to turn manually means it needs attention
Bill | | | | | Joined: May 2006 Posts: 679 Shop Shark | | Shop Shark Joined: May 2006 Posts: 679 | Amen to Brother Bill. A word of warning: IF your motor somehow becomes "unbound" and you are connected to the battery, get a grip! I thought mine turned a little too slowly, so I did what Bill recommends. I was unprepared for how fast that squirrel cage spun. It makes quite a whirlwind with 12v across it!
Bill | | | | | Joined: Mar 2001 Posts: 1,181 'Bolter | | 'Bolter Joined: Mar 2001 Posts: 1,181 | The unit is good and fast. That 1 less part to buy.  | | | | | Joined: Dec 2005 Posts: 324 Member | | Member Joined: Dec 2005 Posts: 324 | Originally posted by red58:
if you can't spin it easily by hand, it needs to come apart and get cleaned and lubed - you can check it by holding the motor case against the ground batt post, and touching the wire to the pos post ... might just spark and grunt if it's semi-siezed up, but even if it runs, being hard to turn manually means it needs attention
Bill Take the time to clean and lube the motor bearings.
"It ain't a truck if you can't hose out the cab."
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