[s-cars] Re: Coil Packs and POS/PSO

[James Murray (QB/EMC)]

"Poor heat sink conduction from the back of the POS to the metal bracket may cause thermal shutdown problems when the POS gets warm/hot". http://www.sjmautotechnik.com/TROUBLE_SHOOTING/S4_Ignition.htm

Simply a great web site...

/J.


-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Voits
Sent: Tuesday, June 29, 2004 1:22 PM
To: s-car-list at audifans.com
Subject: [s-cars] Re: Coil Packs and POS/PSO


I'll add my $.02 on PSO's while we're at it.
I'm supposing the reason PSO's fail is heat related as well.  The design of
the part and its mounting arrangement suggests heat conduction/removal is
the main issue in the design.  Is it Scott M's site that suggests remounting
with thermally conducting grease?  I think this is a great idea.  My PSO's
looked as if they might have been mounted that way to begin with but all
that's left was (thermally insulating) corrosion and a failed channel.
You can get the grease at any geeky computer store.  I removed the corrosion
and bedded them in the stuff.
Steve V.
95.5 S6 Seattle



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