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#1
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Coolant connection : no seal ? no gasket ?
The aluminum water pipe on top of the engine block connects to a black steel pipe on the passenger side, rear; I believe this is the heater return line. The end of the steel pipe slips snugly into a machined hole in the aluminum water pipe, and a small screw on a tab holds it in place.
Q) Is there any gasket or seal for this connection ? There isn't anything shown in the parts diagram at subaruparts.com (the pipes are joined in the picture). It seems like there has to be something ! Should I use some gasket maker ? TIA, Jeff |
#2
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I don't know of any seal or gasket. Maybe someone else has an idea about this.
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. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#3
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If no one else answers in the meantime, I can take a look tomorrow night when I get home...
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Dave - 03 Baja - 92 SVX - 86 Brat - 08 OB 3.0 |
#4
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Maybe it's just a smooth, tight fit. But I checked thermal expansion coefficients, and aluminum expands more than steel, so it's gonna tend to get a little looser at higher temps.
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#5
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Well, I found that I had a water pipe from an EJ25 that is resting in peace (pieces) in my shop. It too has a connection just like the one I asked about. So I undid the nut and took it apart. Man this one was stuck in there good ! But no gasket, no sealant - just a good tight fit. I guess the water pressure is pretty low on top of the block on the return side of the radiator, but I never imagined a joint like that would work.
Anyways, just to be safe, I smeared some gasket sealer goo around the flange. |
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