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Date:         Wed, 8 Dec 1999 17:12:41 -0500
Reply-To:     "Anthony L. Mourkas" <frankenstein@TELPLUS.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Anthony L. Mourkas" <frankenstein@TELPLUS.NET>
Subject:      Re: Heater Core replacement
Comments: To: joe friedrichs <joefried@JAVANET.COM>
Content-Type: text/plain; charset="US-ASCII"

>I'm replacing the rear heater core and heater valve in my vanagon, >can anyone tell me can I do this without draining my entire cooling >system?

Yes.

>If so I plan to clamp off in & out hoses and replace core.

That's the plan. Use plenty of old rags to catch any spillage. And get a new gasket to go between the core and valve assembly.

>I >assume the white plastic screw is a bleeder valve, how long do you think >it takes to bleed system, and should I also bleed from the radiator >bleeder valve?

The white plastic screw is a bleeder screw, that is actually what broke in my Westy. I had a complete new core on hand so I swapped it in using the method above. I have since extricated the remains of the broken bleed screw in the original core, and replaced it with a new bleed screw, o ring, and gasket, and the rehabbed core is giving me fine service in my 87 Syncro.

I did not open the bleed valve in the heater when doing the after replacement bleed ritual. I bled the system using the radiator bleed screw and a steep driveway. Worked well for me.

Good luck with your core/valve replacement.

Best wishes,

Tony

Anthony L. Mourkas Hampden, Maine, USA 1984 Vanagon Westfalia 1987 Vanagon GL Syncro 1991 Jetta Eco Diesel


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