fusible link meltdown detection
v8q at bellsouth.net
Fri May 17 12:48:41 EDT 2002
I removed the cover and installed a sealed fusible link from Discount Auto. Bend
the two leads 90 degrees and bolt it up. About $4.00 and readily available...
Even has a clear window to see if its blown.
wolff at turboquattro.com wrote:
> Sounds like a winner. I've had the infamous fuse crack happen...
> BTW, I keep a spare fusible link bolted to one side of the existing fuse as
> a spare. It's right there where I'll need it next time. I've also had a
> broken after run pump nipple and a broken radiator nipple, so I never ignore
> the level alarm!
> "Nobody can forget the sound." - Michele Mouton
> ----- Original Message -----
> From: "Brett Dikeman" <brett at cloud9.net>
> To: <200q20v at audifans.com>
> Sent: Thursday, May 16, 2002 9:33 PM
> Subject: fusible link meltdown detection
> > This topic just came up on the main list...I mentioned that it seems
> > we get a regular trickle of listers here who have the fusible link
> > crack from corrosion and then suffer a boilover, which isn't very
> > good for the car, of course.
> > I realized that a small relay could be installed parallel to the
> > fuse, and if the fuse blew/cracked, the relay would be tripped and
> > you could short something...like...say...the coolant expansion tank
> > level sensor, which just so happens to be mere inches away(how handy!)
> > If you were running with the climate control in an A/C-on mode, you'd
> > get an instant warning...otherwise, you'd get a warning when the
> > second the stage II fan tried to kick in.
> > I'd be happy to try and come up with something clever from Digikey
> > parts etc...does this sound like a plausible idea/worthwhile
> > endeavor, with sound logic etc?
> > I'd estimate cost at well under $20, I would hope...we're talking
> > about a relay, a resistor, a small case to enclose both, some RTV to
> > protect it, etc...depending upon whether or not the connectors can be
> > obtained, it could even be a zero-wire-cut mod(but unless you went
> > junkyard-diving, it would probably inflate the cost a fair bit, so it
> > might be easiest to use splices or something.)
> > The absolute key is that you'd have to take a low-coolant warning
> > from the auto-check system seriously...
> > Brett
> > --
> > ----
> > "They that give up essential liberty to obtain temporary
> > safety deserve neither liberty nor safety." - Ben Franklin
> > http://www.users.cloud9.net/~brett/
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