'Got all that done and wrote about it before noon - WOW! ATTABOY! 'Makin'
the rest of us look or feel bad. ;<)
Wilton
----- Original Message -----
From: "Dan Penoff via Mercedes" <mercedes@okiebenz.com>
To: "Okie Benz" <mercedes@okiebenz.com>
Cc: "Dan Penoff" <d...@penoff.com>
Sent: Monday, September 07, 2015 11:23 AM
Subject: [MBZ] Today's S420 Fun
In an effort to address the remaining items on my list for the 94 S420, I
started in this morning around 8:30.
First thing was to add a couple of resistors to the coolant temperature
sensor for the auxiliary fans. On the 95 and earlier W140 cars, there is
a sensor on the top front of the M119 engine that provides the setpoint
(100 C) for the turning on of the auxiliary fans. I added two 2.2k ohm
resistors in parallel to get the desired 1.1k ohm resistance to lower the
setpoint to around 92C. Of course the little plastic connector body
pretty much disintegrated when I attempted to disassemble it. Something
for the “list ‘o’ parts” to my dealer parts guy tomorrow.
Next was the fuel filter. I wasn’t looking forward to this, as I really
hate working around gasoline, but….
This car has the dual fuel pump setup with the filter that uses
compression and banjo bolt fittings. Fortunately, everything was neat and
clean with no corrosion present. One of the clamp screws for holding the
filter and pumps in place was worn out, but with a good phillips bit and
an offset screwdriver I was able to get enough torque on it to break it
loose.
Filter and fittings all came loose without much effort. Go the caps form
the new filter on the old one pretty quick, so the amount of gas that came
out wasn’t bad, maybe half a cup or so. Got everything in place, tightened
up and tested with no leaks. Put the cover back on and done.
I did find something on the old filter that shocked me a bit when I saw
it. I didn’t notice this until after I had removed it and it was draining
in the pan:
https://www.dropbox.com/s/x86sl4b6oab7l2g/S420%20Filter.JPG?dl=0
<https://www.dropbox.com/s/x86sl4b6oab7l2g/S420%20Filter.JPG?dl=0>
And now that the garage is cleared out and car work is pretty much done
for the weekend, I’m going to tear into my floor jack, I think. That’s
after I start the spouse’s birthday cake baking….
Dan
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