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Author Topic: Thermostat housing  (Read 1454 times)

Brennie

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Thermostat housing
« on: September 12, 2022, 11:36:03 »
Hello
Quick question
It’s there a gasket or O ring meant to be between these?
Thank you
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Berggreen

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Re: Thermostat housing
« Reply #1 on: September 26, 2022, 23:04:28 »
Hi Brennie

No actually not. But it is advised to clean all contact surfaces to prevent any leak.

You can add some water pipe seal if need be and it keeps leaking.

Good luck 🤞

Christian
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02/1971 MB 280SL (aut.) - olive green 291H
11/1970 MB 280SL (man.) - silver 180G
12/1977 MB 350SE (aut.) - deep green 825H
03/1969 Volvo 1800S (man.) - dark green 94

Brennie

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Re: Thermostat housing
« Reply #2 on: September 27, 2022, 04:39:29 »
Thank you Christian
It’s just that I saw this.. see picture..
When I removed my one there was no ring, washer or gasket..that’s why I asked..
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Berggreen

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Re: Thermostat housing
« Reply #3 on: September 27, 2022, 05:34:42 »
Quote from: Brennie on September 27, 2022, 04:39:29
Thank you Christian
It’s just that I saw this.. see picture..
When I removed my one there was no ring, washer or gasket..that’s why I asked..

Looks good, but I never saw this before. The thermostat itself from eg. Bosch does not include a seal or copper ring, and I have not seen it for the house before now.

However, I guess it cannot harm to add one, and leaks from the house are often seen, if the seats have a small damage or imperfection.
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02/1971 MB 280SL (aut.) - olive green 291H
11/1970 MB 280SL (man.) - silver 180G
12/1977 MB 350SE (aut.) - deep green 825H
03/1969 Volvo 1800S (man.) - dark green 94

Brennie

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Re: Thermostat housing
« Reply #4 on: September 27, 2022, 07:38:40 »
I did take the housing off to tidy it up and it now has a small leak.. ordered the washer.. I’ll see if that solves the problem…
There wasn’t one there when I dismantled it.. we shall see…
Thank you for your interest..
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Berggreen

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Re: Thermostat housing
« Reply #5 on: September 27, 2022, 07:47:46 »
Quote from: Brennie on September 27, 2022, 07:38:40
I did take the housing off to tidy it up and it now has a small leak.. ordered the washer.. I’ll see if that solves the problem…
There wasn’t one there when I dismantled it.. we shall see…
Thank you for your interest..

Mine is actually also leaking. Where did you buy the washer?

Cheers,

Christian
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02/1971 MB 280SL (aut.) - olive green 291H
11/1970 MB 280SL (man.) - silver 180G
12/1977 MB 350SE (aut.) - deep green 825H
03/1969 Volvo 1800S (man.) - dark green 94

Brennie

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Re: Thermostat housing
« Reply #6 on: September 27, 2022, 08:19:50 »
Sl Shop UK
Or Authentic Classics US
( that’s the one in the picture)
https://parts.theslshop.com
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Berggreen

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Re: Thermostat housing
« Reply #7 on: September 27, 2022, 08:23:23 »
Quote from: Brennie on September 27, 2022, 08:19:50
Sl Shop UK
Or Authentic Classics US
( that’s the one in the picture)
https://parts.theslshop.com

Great, thanks!

Maybe, when you get it, could you then maybe post the dimensions of the washer? Then we may be able to find it locally. ;)

Cheers,

Christian
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02/1971 MB 280SL (aut.) - olive green 291H
11/1970 MB 280SL (man.) - silver 180G
12/1977 MB 350SE (aut.) - deep green 825H
03/1969 Volvo 1800S (man.) - dark green 94

Brennie

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Re: Thermostat housing
« Reply #8 on: September 27, 2022, 08:27:48 »
Will do.. I comes today..
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Berggreen

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Re: Thermostat housing
« Reply #9 on: September 27, 2022, 08:44:07 »
Quote from: Brennie on September 27, 2022, 08:27:48
Will do.. I comes today..

Great, thanks!  :D
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02/1971 MB 280SL (aut.) - olive green 291H
11/1970 MB 280SL (man.) - silver 180G
12/1977 MB 350SE (aut.) - deep green 825H
03/1969 Volvo 1800S (man.) - dark green 94

Brennie

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Re: Thermostat housing
« Reply #10 on: September 27, 2022, 11:42:19 »
This is it…
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Benz Dr.

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Re: Thermostat housing
« Reply #11 on: September 27, 2022, 15:38:47 »
The thermostats and housings are different for 230 and 280SL. 230SL uses a seal ring and 280SL only needs a bit of sealer.
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1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

Brennie

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Re: Thermostat housing
« Reply #12 on: September 27, 2022, 16:13:13 »
I have a 230 so, I guess this is right?
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