Re: 1979 300SD Diesel Heating Solution

On May 15, 12:35 pm, "-->> T.G. Lambach <<--" <"T.G. Lambach at
NoHamorSpamcomcast.net"> wrote:
The electric fan in front of the radiator, a/k/a auxiliary fan, runs on
demand.

And that demand comes from either the engine coolant temp going above
a certain temp or the freon temp at the receiver/dryer going over a
certain temp. So, if it's a very hot day, you may see it come on for
the AC or the coolant. The coolant triping it can usually be seen
after some hard driving on a high 80s or above day, followed by
letting it idle for a bit.





The important thing is that the engine temperature be at 80+
degrees C, rising to say, 100 degrees C, when pulling up long grades.
Incidently, the device you called the "cracked thermostat" is the much
cursed climate control "servo".

I've owned an '80 300SD since new and agree it's a fine car. Mine now
has a digital retrofit climate control system in place of the "servo"
etc. - my concession to technology.
--
© 2007 T.G.Lambach. Publication in any form requires prior written
permission.


.

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