>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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