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GeoffreyHawk Samba Member
Joined: November 02, 2010 Posts: 16 Location: San Diego
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Posted: Sat Oct 08, 2011 6:09 pm Post subject: Rear heater coolant leak from strange place |
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Thought my latest coolant leak was the o-ring for the rear heater valve, so I purchased a new o-ring and the valve while I was at it. Went out just now to install and discovered to my dismay that the coolant is coming from a different place: the round whitish object just to the right and above the hex bolt that attaches the valve (see photo). When I squeeze the coolant hose, water squirts out of this place:
What is that place, and what's the fix (other than eliminating the heater altogether -- I've read those posts)?
Thanks. _________________ Geoffrey Smith
Santa Rosa, CA
1990 Vanagon Westfalia automatic... 'Gypsy' |
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T3 Pilot Samba Member
Joined: January 10, 2011 Posts: 1507 Location: Deep South of the Great White North
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Posted: Sat Oct 08, 2011 6:21 pm Post subject: |
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Hi Geoffrey,
That looks like the remains of the bleeder screw. It appears from your image that it is chewed up . The O ring on this all plastic screw is clearly leaking and now the problem will be to extract the old screw and replace it and the suspect O ring. Use silicone grease on the new plug when reinstalling. _________________ 1988 Vanagon
The most important part in every vehicle is the nut behind the wheel...... |
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photogdave Samba Member
Joined: April 05, 2004 Posts: 3053 Location: Vancouver Island, B.C.
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flopper Samba Member
Joined: July 22, 2005 Posts: 74 Location: Guelph, ONT, Canada
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Posted: Sat Oct 08, 2011 6:24 pm Post subject: |
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That's the plastic bleeder screw but the head has broken off. Unfortunately I don't know how to replace it without replacing the heater core. Wow...I'm a slow at typing/r.
Mike _________________ 85 Vanagon GL 7pass manual in the process of finding out all that's wrong.
One VW at a time so far, past memories...
75 Westy weekender, 92 Eurovan GL and to start it off 82 Vanagon GL 9pass. |
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Perales Samba Member
Joined: May 07, 2007 Posts: 2046 Location: Nova Scotia
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T3 Pilot Samba Member
Joined: January 10, 2011 Posts: 1507 Location: Deep South of the Great White North
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Posted: Sat Oct 08, 2011 6:34 pm Post subject: |
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This is what the part looked like originally. your challenge will be to remove the remnant. This is one of the few times that a screw extractor might work.
The silicone grease is the key to ensuring that the new part can be installed and removed easily. Don't forget the O ring. _________________ 1988 Vanagon
The most important part in every vehicle is the nut behind the wheel...... |
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GeoffreyHawk Samba Member
Joined: November 02, 2010 Posts: 16 Location: San Diego
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Posted: Sat Oct 08, 2011 6:59 pm Post subject: |
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OMG, the screw is beautiful! I had no idea there (ever) was a screw there. I've certainly never bled it personally in ten years -- I only bleed the front radiator and the rear thermostat (which is currently stuck).
I'll order a new one pronto.
I've ordered from both Van-Cafe (set of tires) and GoWesty (mostly) and Bus Boys (a few odds and ends parts). Any preferences? Or should I just leave that decision to myself? _________________ Geoffrey Smith
Santa Rosa, CA
1990 Vanagon Westfalia automatic... 'Gypsy' |
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SteelB12 Samba Member
Joined: December 21, 2010 Posts: 591 Location: Central Virginia
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Posted: Sat Oct 08, 2011 8:39 pm Post subject: |
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Hmm, something ELSE that I need to inspect _________________ 1987 Westy |
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IdahoDoug Samba Member
Joined: June 12, 2010 Posts: 10251 Location: N. Idaho
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Posted: Sat Oct 08, 2011 10:46 pm Post subject: |
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Ditto... _________________ 1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2017 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential, 1990 burgundy parts Vanagon. 1984 Porsche 944, 1988 Toyota Supra 5 speed targa, 2002 BMW 325iX, 1982 Toyota Sunrader |
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GeoffreyHawk Samba Member
Joined: November 02, 2010 Posts: 16 Location: San Diego
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Posted: Mon Oct 10, 2011 1:56 pm Post subject: |
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I went ahead an ordered the whole heater core from Van-Cafe. Hope to head off a core failure down the line. Now if only the 'T' connectors and hoses will hold up...
Thanks everyone. _________________ Geoffrey Smith
Santa Rosa, CA
1990 Vanagon Westfalia automatic... 'Gypsy' |
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OhChit Samba Member
Joined: January 29, 2004 Posts: 271
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Posted: Mon Oct 10, 2011 4:31 pm Post subject: |
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Recently went to bleed my coolant lines and when I tried to bleed the rear heater my bleeder screew broke as soon as I touched it. So after doing some searching I decide to replace the rear heater core with one from Busdepot only $69. Bucks it came with the new bleeder screw. While i was in there I also replaced the rear heater shut off valve... Now all is dry with good heat.
http://busdepot.com/details.jsp?partnumber=867819121A _________________ Fast Cars, and Slow Women Makes me DrooL. |
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