[200q20v] radiator fuse

Ken Keith auditude at neta.com
Wed Feb 28 14:36:42 EST 2001


I see, that makes sense.  That means a long time ago, a stupid 
stereo shop put two 30a fuses in parallel to my amp.  I asked if 
that was okay, and they said it was fine.  I think they did it in 
response to the fuse popping prematurely.  It was supposed to be 
a 600w amp (cheap Pyramid), so 600w/12v=50a would have been 
the single fuse I should have had.

Luckily no fires or nasty things resulted.

And yes, the original issue that we were discussing making 
failsafe, was cracking or blowing of the fuse, resulting in 
overheating (without warning?).  It wasn't clear why the high temps 
weren't caught by checking the gauges or idiot lights.  

However, I overheated a Toyota truck once, because I thought the 
alternator was dead, so I was driving home under battery power 
with no lights at night.  Turns out the alternator was fine, and the 
belt was gone.  The same belt that turned the radiator fan.  Since I 
was driving with no lights at night, I didn't see the high temp gauge. 
 Bad news.  Live and learn.

Ken

On 28 Feb 2001, at 13:20, Sylvester, Mike wrote:

> No.  The current would be divided between the 2, thus taking ~twice
> the current to open the fuses.
> 
> Mike Sylvester
> 
> -----Original Message-----
> From: Ken Keith [mailto:auditude at neta.com]
> 
> Can you run two fuses in parallel as a failsafe?  If you do, would
> one/they still blow at the proper current?
> 
> Thanks,
> 
> Ken
> 
> On 27 Feb 2001, at 9:16, Lee M. Levitt wrote:
> 
> > Peter writes:
> > 
> > > You also want to check the fuse for the radiator fan...I'd
> > > recommend
> > replacement as it's <$1 part
> > 
> > 
> > Um, no. On my 200T, it was a $3500 part.
> > 
> > :(
> > 
> > Damn thing *cracked* and kept the fan from running, with disastrous
> > results. It was not obvious that it had cracked either...I'd
> > consider this a consumable item, to be changed regularly.
> > 
> > Of course, the fact that it failed also got us to sell the 200T
> > after it was repaired, replacing it with an A6 quattro avant...which
> > got me to sell my truck, replacing that vehicle with an S6 avant. So
> > I guess it wasn't all bad. Rather expensive, once you add in the
> > additional transactions, but what the hell. :)



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