[s-cars] Blower motor......again

[brian hoeft]

..."Anbody have some other thoughts?"

besides calling SJM for a proper unit, id look for a local electric motor
repair shop. usually the guys that refurbish starters/alternators locally
will know whos most reputable in your area.


-brian








On Mon, Mar 29, 2010 at 5:13 PM, ron kirkham <rkaudifool at gmail.com> wrote:

> So I'm nads deep in replacing my heater blower motor and have issues.
> First, thanks to Fred Munro's writeup, this has been somewhat painless,
> albiet fiddly.  Thanks Fred.
>
> First problem:  The Meyle blower I sourced does not fit.  The fan is not
> quite 1/16" taller than the Bosch unit that was removed.  This makes the
> fan
> hit the housing when installed.  The fan seems to be pressed down on the
> shaft too far as there is about 1/8" between the fan cage and the shaft
> clip.  I suppose I could try to pull the fan up on the shaft, but it's a
> very tight fit, and I'm guessing this will throw the balance off, if it was
> ever balanced by the good folks in China to begin with.  I think I'm going
> to bite the bullitt and get a genuine part at over twice the cost.  Ouch.
>  I
> don't want to do this job again.
>
> Second problem, issue:  Frustrated by problem one, I decided to feed the
> old
> Bosch part some juice and see whats what.  A full 12V from the underhood
> post makes this thing almost jump from my hand!  WTF?  The CC head said
> that
> the fan was shot, and all my flaps are fine.  The fan has not blown in
> almost a month, but it sure works now.  Does this fan not see a full 12v
> from it's source when installed?  Maybe I just broke something free when
> I removed it, even though it spun freely in the car?  Is there another
> component that would keep the fan from getting juice?  Are both the CC head
> units I used to diagnose with lying?  Interestingly, the Meyle units fan is
> very stiff to turn by hand, I guess it's just 245k mile worn brushes on the
> original?  I have not powered the Meyle as I'm hoping to get my money
> back on it.
>
> I think I'm going to put the old motor back in, and see what happens.
>  Since
> it's all torn apart anyway, it can't hurt right?  A new part is easily
> 4-6 days away, so why not?
>
> Anbody have some other thoughts?
>
> Ron
> 93 S4 with 245k and no blow
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