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Date:         Wed, 12 May 1999 00:11:53 -0500
Reply-To:     Budd Premack <bpremack@WAVETECH.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Budd Premack <bpremack@WAVETECH.NET>
Subject:      Re: My $%&$%& van
Comments: To: Ben Wampler <ben@ERUPT.COM>
Content-Type: text/plain; charset="iso-8859-1"

Sorry to hear about all of your cooling system troubles.

You came up with the most likely solution when you asked, "Does it need to be bled?"

It is likely that air is trapped in the system, and air cannot remove heat from a waterboxer engine the way it can from the aircooled vans. You must be sure that the system is full of coolant, not full of air pockets.

There is an involved specific procedure for bleeding the cooling system, which includes raising the front of the van about 14", running the motor at about 2500 rpm while pouring coolant mixture into the expansion tank, and unscrewing the bleeder screw on the radiator until the air has fully escaped. This is all covered in the Bentlley manual. There are also many discussions of shortcuts and alternate techniques in the Archives. Do not forget to use only a phosphate-free coolant.

If your mechanic has already properly bled the system, then I defer to the more technically adept members of the List for further suggestions.

Budd Premack 86 Syncro, 84 GL(for sale soon), 73 Super Minneapolis, MN (Land of Sky Blue Waters)


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