Thread Number: 74196  /  Tag: Vintage Automatic Washers
Should the motor on a belt drive be too hot too touch?
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Post# 979835   1/25/2018 at 00:49 (265 days old) by wazzabie (USA)        

Should the motor on a belt drive be too hot too touch? How hot are these motors suppose to get. This one is 35 years old and still running. It has been used several times weekly every year for 35 years.

Post# 979845 , Reply# 1   1/25/2018 at 04:42 (264 days old) by arbilab (Ft Worth TX (Ridglea))        

arbilab's profile picture

Normal for motor to get as high as 180F running a half hour.   Fingers surrender around 130. 


The hottest part of the motor-- within the windings-- is allowed for in the ratings.  For Class A typical appliance motor, the insulation is good to 220F.  For every ~20F motor operates above that, thumbrule is motor life drops in half.  Doubt you're anywhere near that.



Post# 979943 , Reply# 2   1/25/2018 at 20:57 (264 days old) by wazzabie (USA)        

What would be the life expectancy for an original belt driver washing motor?

Post# 979965 , Reply# 3   1/26/2018 at 04:56 (263 days old) by arbilab (Ft Worth TX (Ridglea))        

arbilab's profile picture

Too many variables to boil down to a number.  However, motor is not typically 'the big one' that disables the machine.  Something else goes first.  Bearings, seals, trans, rust. 


Motor also tends to be the easiest major part to replace.  Wouldn't worry about it.  Time comes the machine quits, time to decide the value of it against work/cost of major rebuild.  Also considering the questionable value of buying new, knowing how hard it has become in the marketplace to dodge crap.

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