Re: 512tr fan speed resistor (Matt Boyd)
From: George (ygpz4rehotmail.com)
Date: Fri, 2 Sep 2022 06:51:38 -0700 (PDT)
Matt,

I'm glad you posted this.  I was about to chime in with the exact same story - well, almost exact same....  I couldn't remember where I'd heard it or who had figured out the "shortcut".  Only slight amendment I'd make is "...you'd have to replace that part but could avoid all the labor *and removal of the windshield*...", which must be a significantly high risk step in the process.

gp



From: Matt Boyd <ferrari308driver [at] gmail.com>
To: BRITT ROTHMAN <britt2asa [at] aol.com>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Subject: Re: [Ferrari] 512tr fan speed resistor

I vaguely remember a story from Ric Rainbolt, specifically from his
mechanic Mike Peters who helped me work on my 308 once. Mike used to work
for Ferrari of Dallas. Here's how his story went, and I might have it
slightly wrong.

He said back in the 1980s/1990s, and perhaps this still applies now,
Ferrari did not necessarily allow enough time for warranty work. In other
words, when the car had a warranty repair, there was a book time assigned
to it, and the shop got paid for that book time even if it took longer. One
job in particular, as I recall, was an expansion valve (or something in the
A/C system) for a Testarossa. He said that to do it right means taking the
windshield and dash out and it was many many hours, but the book time was
not nearly enough. He figured out that if you sacrificed one specific part
under the dash, you'd have to replace that part but could avoid all the
labor, and in the end it was a rare instance where he could get the job
done and make money off of Ferrari since it was so much less time than book
time allowed. :-)

Piling on the resistor discussion, I also had a Mondial and the resistor
failed. It was on a heat sink that was in the airflow of the A/C output.
You can buy the whole part (resistor and heat sink), or do what I did and
just source the resistor and refasten it with thermal paste.

Keep us posted.

-matt
'85 euro 308 with the water pump sitting on the garage floor with one
broken stud from the thermostat housing and waiting for me to separate it,
replace the stud, rebuild/replace the water pump, etc.....

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