$90 thermostat - Page 3 - Mercedes-Benz Forum

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post #21 of 23 (permalink) Old 08-19-2013, 08:48 AM
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I can sympathize with the photography part.

Most of my pictured projects usually are captioned, "Behind my my big fat thumb is the amount of metal you need to remove,etc."
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post #22 of 23 (permalink) Old 08-19-2013, 04:04 PM
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Nice work Ray. Here's a site that you might find useful to give you an idea of prices for 190SL parts - 190SL Parts Catalog - SL Autohaus. The part you made looks like it's $55 there.

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post #23 of 23 (permalink) Old 08-19-2013, 05:11 PM Thread Starter
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Date registered: May 2013
Vehicle: 1961 190SL
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(Thread Starter)
"Nice work Ray. Here's a site that you might find useful to give you an idea of prices for 190SL parts - 190SL Parts Catalog - SL Autohaus (190SL Parts Catalog - SL Autohaus). The part you made looks like it's $55 there."

Thanks for the compliment Len. Yes, that's the part.

The exploded diagrams on that site are very informative. Whoever last worked on our 190SL, while it was still with my mother in law, stripped one of the bolt holes in the aluminum casting that thermostat cover attaches to. Also when I removed that casting to get access to a small hose it looked like the thermostat was installed upside down compared to every other one I've ever seen. I commented to my wife that unless the 190SL water circulation was reversed from the ordinary, the thermostat was in upside down. Her comment was "Considering all the other weird stuff on that car, I wouldn't rule that out". The exploded diagram confirms that it was indeed installed upside down. The last "mechanic" also drilled an about 1/8" hole in the thermostat flange. I've heard that recommended to help purge air bubbles but I've never done it myself.

This particular car reportedly has a history of severe overheating in slow or stopped traffic. I wonder if the inverted thermostat contributed to that problem?

Just for fun I compared our installed-upside down German thermostat ($38.50 at Autohouse) to a current Chevy thermostat ($7.00) and the dimensions are identical. I enjoy finding these parts interchanges, and have done the same thing on my restored '36Chevy pickup. For example I found a point set that is listed for '62 Chevies that drops right into the '36 distributor and is much improved over the original 2-piece, unventilated points.

Thanks again for the note.

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