Pagoda SL Group

W113 Pagoda SL Group => Wanted To Buy => Topic started by: BLTZKRG on November 08, 2018, 23:15:10

Title: thermostat housing 250SL
Post by: BLTZKRG on November 08, 2018, 23:15:10

Car has been sitting since Julius Caesar was a young lad, the thermostat housing has corroded beyond saving, I need a replacement, can anyone help?

exact10@me.com

Title: Re: thermostat housing 250SL
Post by: hkollan on November 09, 2018, 00:42:58

Hi,

Yes, the part is available new at the dealer or classic center.
The New part # is 1272030974. Not too expensive.

Hans

Title: Re: thermostat housing 250SL
Post by: Atazman on November 09, 2018, 02:02:51

This part number (1272030974) has the plug in the top for filling/venting.

Title: Re: thermostat housing 250SL
Post by: mbzse on November 09, 2018, 09:36:45

Quote from: Atazman

This part number (1272030974) has the plug in the top for filling/venting

See pictures in this thread
https://www.sl113.org/forums/index.php?topic=28196.msg204913#msg204913 (https://www.sl113.org/forums/index.php?topic=28196.msg204913#msg204913)

Title: Re: thermostat housing 250SL
Post by: BLTZKRG on November 10, 2018, 17:03:25

I have the new part with the plug vent, got it from Tom Hansen, but I want an original without the vent

Title: Re: thermostat housing 250SL
Post by: ejboyd5 on November 10, 2018, 18:28:58

With time, effort and some JB Weld you might well restore that part to functionality.  I'd start with a thin metal sleeve to maintain the inside diameter, then layer JB Weld to restore the outside diameter, then smooth to a final finish.  Most, if not all, of your repair would be covered by the coolant hose and originality would be prserved.

Title: Re: thermostat housing 250SL
Post by: mrfatboy on November 10, 2018, 23:31:16

I saw this used one on eBay.

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F382520937735

Title: Re: thermostat housing 250SL
Post by: BLTZKRG on November 11, 2018, 01:44:23

Thanks but that's the one with the plug in it, I already have that

Title: Re: thermostat housing 250SL
Post by: mrfatboy on November 11, 2018, 01:56:03

The hole is not drilled for the plug but it is prepped for late 280sl's.

My early 280sl is same.  See pic.  But as i do see the 250's don't have the pre hole form in the housing.

I didn't realize there were at least 3 versions.  I'm not sure what the 230's look like.

Title: Re: thermostat housing 250SL
Post by: steves sl on November 11, 2018, 15:15:09

Enclosed are 2 pic's of the housing on an early 230sl.....recently added a/c compressor.

Title: Re: thermostat housing 250SL
Post by: Jonny B on November 11, 2018, 15:38:55

The replacement part number is listed as 127 203 09 74 in the last engine parts book (Jan 1971) it also lists the plug and seal ring.

The thermostat cover part is listed as 127 203 05 74 in the 250/280 SL engine books, with 127 203 07 74 listed in all the 230 SL books.

Title: Re: thermostat housing 250SL
Post by: specracer on November 11, 2018, 17:20:52

Have you called this company?

https://eurocarspartz.com/

Title: Re: thermostat housing 250SL
Post by: mbzse on November 11, 2018, 18:06:23

Quote from: Jonny B

.../...The thermostat cover part is listed as 127 203 05 74 in the 250/280 SL engine books.../...

This is what I have in my original 280SL (Late spring 1968 delivery). This is the smooth type lid (no "plug prep" in alloy casting)

Title: Re: thermostat housing 250SL
Post by: Garry on November 11, 2018, 20:39:05

Here is mine on my 65 230 sl.  A different angle.


Garry

Title: Re: thermostat housing 250SL
Post by: BLTZKRG on November 12, 2018, 00:29:42

Beautiful Gary, post some outside pics, looks fabulous, I love my car, it has to be one of the most original 250SLs left, but I'd swap it for a restored 280SL!

Title: Re: thermostat housing 250SL
Post by: Tyler S on November 12, 2018, 00:32:14

These replacements with the undrilled port for the temp switch were cast this way to alleviate the need for 2 different castings. The later casting was used for the earlier housings and simply not drilled out.

Title: Re: thermostat housing 250SL
Post by: mrfatboy on November 12, 2018, 00:48:18

Here is a picture of what Tyler is talking about.