A few years back, I had #3 spark plug tube had a wicked leak -- from the top
of the head area, as near as I could make out. The tube would fill with oil
in a few minutes, then overflow out the top of the tube, from whence it
would float back along the head-to-valve cover gasket to the rear of the
engine and down the back to ground -- annoying, but not terminal. The spark
plug never seemed to care, just kept on sparkin'! Of course the volts are a
bit higher there than through the alternator. (I finally stopped it with a
really clean mating area plastered with shoe goo, then pressed down with a
couple of spare plug tube gaskets. Something else might have been
better/quicker/"permanenter," but that's what I had! Anyhow, the plug wire
has never complained that I cleaned the oil out of there.)
I did think about the use of oil for running electrical equipment. And I
wondered about the value of PCBs and the composition of that oil v. this.
>From this thread, it sounds like we have part of the answer. Most of us
wouldn't understand the "Tech-spec" part, anyway.
I, too, am thrilled with the rebuild points. I have used a local rebuilder
with pretty good results, b ut I still have to keep a spare of each --
alternator and starter, to be ready for breakdowns. If I get my bench
cleared off, maybe I actually can figure out how to do this myself!!
Gene
- Original Message -----
From: "(Phil)" <yes_this_is_really_my_email_address@mindfart.com>
To: "Pug NZ" <pug-yahoo@azorah.co.nz>; <peugeot-L@yahoogroups.com>
Sent: Thursday, March 17, 2005 4:51 PM
Subject: Re: [Peugeot-L] Alternator howto
>
> They actually use engine oil. I'm sure some conductivity is there, but
it's
> probably minimal, especially with low DC voltages.
>
> -Phil
> ----- Original Message -----
> From: Pug NZ
> To: (Phil) ; peugeot-L@yahoogroups.com
> Sent: Thursday, March 17, 2005 1:53 PM
> Subject: Re: [Peugeot-L] Alternator howto
>
>
> Electrical cooling oil has quite different properties from engine oil (and
> it also used to contain a lot of PCBs!) and would have a good insulating
> effect, while used engine oil (mixed with dirt etc) probably has some
> conductivity!
>
> ----- Original Message -----
> From: (Phil)
> To: Pug NZ ; peugeot-L@yahoogroups.com
> Sent: Friday, March 18, 2005 10:13 AM
> Subject: Re: [Peugeot-L] Alternator howto
>
>
> It seems like Oil in the alternator is a GOOD thing! =)
>
> Most of the commercial big ones are oil immersed and cooled. I know this
> isn't the same, as oil in the alternator may be fine, but the resulting
dirt
> that accumulates because of the air cooling fan blowing crap on all the
oily
> surfaces is not good.
>
> -Phil
> ----- Original Message -----
> From: Pug NZ
> To: (Phil) ; peugeot-L@yahoogroups.com
> Sent: Thursday, March 17, 2005 1:14 PM
> Subject: Re: [Peugeot-L] Alternator howto
>
>
> I think it was actually the original one for the car, 170,000 miles
doesn't
> seem too bad (it is still going now at over 180,000 after the reco!)
> I suspect that the wear may also have been accelerated by the oil leak
from
> the rocker cover that was dripping directly onto the alternator (previous
> mechanic didn't put the gasket in properly, and there was a wriggle, and
> hence a drip, right above the alternator).
>
> Kevin
> ----- Original Message -----
> From: (Phil)
> To: Pug NZ ; peugeot-L@yahoogroups.com
> Sent: Friday, March 18, 2005 10:06 AM
> Subject: Re: [Peugeot-L] Alternator howto
>
>
> Wow, I have yet to see that one! That armature must have been around
since
> the 60's and has been in many a rebuild! =)
>
> -Phil
> ----- Original Message -----
> From: "Pug NZ" <pug-yahoo2@azorah.co.nz>
> To: <peugeot-L@yahoogroups.com>; "(Phil)"
> <yes_this_is_really_my_email_address@mindfart.com>
> Sent: Thursday, March 17, 2005 1:07 PM
> Subject: Re: [Peugeot-L] Alternator howto
>
>
> >
> > Another thing to add is that the slip rings (on the armature, that the
> > brushes run on) can wear out.
> >
> > 1987 505 V6, approx 170,000 miles, alternator failure.
> > Brushes worn, and one slip ring worn through, other part worn (one is
> > negative and the other positive, so one of them will wear quicker
because
> > of additional electric erosion of the metal).
> > Repair cost, approx $NZ 80 for new slip rings, $10 for brushes, plus
> > bearings and my time to R & R alternator, dismantle and reassemble.
>
>
>
>
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Received on Thu Mar 17 19:29:55 2005
