Re: (ET) "Mower Motor Rebuilding"

[dave barden <daveb speakeasy org>]

I don't own an elect trak yet but hope to soon.   but here's my 2cents 
anyway...
I know not everyone will have an air compressor but it seems to me that 
compressed
air might be better way to clean the underside of the mower deck than 
using a
hose.  Years ago I was warned by a motorcycle mechanic to never use a high 
pressure
hose to clean the wheels of a m/c because it can blast the lube out of the 
wheel
bearings and blast the dirt in.  I wonder if the same wouldn't be true for 
the
shaft bearings/seals on these mowers???

dave

"Dean A. Stuckmann" wrote:

> Hi,
> Here is my 2 cents worth on the motor sealing.  I have seen the sealer 
> on screw
> heads on the later "fat" motors and recommend sealing that again to 
> reduce
> moisture from getting in from the bottom of the motor and minimize 
> corrosion of
> the screw in that lower end cap.  I would seal the lower end cap but not 
> the
> upper. I think that sealing the motor top completely would be harmful, 
> rather
> than helpful.  I say this because the motor is not sealed very well at 
> the
> blade end of the shaft.  Any moisture from wet grass or from hosing out 
> the
> deck may get in past the shaft seal (rubber ring).  If that happens,  the
> moisture will always condense in the upper bearing cap, no way to get 
> out.
> With it unsealed on top the moisture has a place to get out.  The heat 
> of the
> motor during operation would evaporate the moisture quite fast, so I 
> think it
> is best to leave it breath.
>
> Dean A. Stuckmann