RE: (ET) Lift motor failure

["Markus Lorch" <mlorch vt edu>]

I've used my window lift from an old Chevy Impala
for the last year now without problems. However,
I am running both lifts at 12V, never felt the need
to boost them to 18V. (previous owner used 12V batteries
so there was no 18V tap available)

At http://markus.lorch.net/et/lift-motor.html you can see
how much I ground of my window lift motor. BUT, I can also
not pull up the full strap length without it rubbing against
the motor. But this was the case with the original motor
as well. Maybe my strap is not original.

Markus


> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu 
> [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of 
> Chris Zach
> Sent: Sunday, April 17, 2005 10:18 PM
> To: Slaperaski9 wmconnect com
> Cc: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) Lift motor failure
> 
> 
> Tried a second one tonight. This one was fast, but then I 
> heard a hiss 
> in it, which is usually the sound of a flash-over on the commutator. 
> Sure enough the armature was quite warm and this was with no-load.
> 
> Went to 12 volts and it seems to pull well. One question: 
> Just how much 
> do I have to file off the back of that motor in order for it 
> to fit the 
> whole lift strap? Is the rear strap supposed to be shorter 
> than the front?
> 
> Chris
> 
> 
> Slaperaski9 wmconnect com wrote:
> 
> > If I were you, I'd at least try another motor since you 
> have additional 
> > motors. For  the past 6 years or more, I've been using a  
> window motor from a 1974 
> > Buick.  And at 18 volts. No problems yet.
> > 
> > 
> > 
> > 
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