Not counting massive rust or corrosion issues, water pump replacement should be about a 3 hour job. This includes filling and bleeding the cooling system. A leak at the crossover pipe is usually a bad gasket, bent flange or cracked or rusted-pitted pipe. The proper way to get it out of the way to replace the pump is to loosen the clamps on the connection hose so the pipe can be turned down slightly. The flange on the other side can also be loosened allowing both sides of the pipe to fall. After the pump is out, the pipe can be separated from the hose and the pipe pulled put from behind the pulley with out removing the pulley. Yes it is tight and you will need to position so it clears the pulley. At this point replace that hose. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Thomas Pfrommer Sent: Sunday, January 06, 2008 5:59 PM To: vanagon@GERRY.VANAGON.COM Subject: Water pump? Hi, after not driving my van for about 3 weeks I notice a small drip of coolant (about half a liter for 500km -tendency more and more) from the screw that holds the cooling pipe from the water pump to the opposite cylinder head. I am talking about the lower screw at the water pump side. I took the V-belt of and gave it about 1/8 turn more and will see if this helps. But I think in the end something is wrong here. The gasket seems not dripping, it rather seems that it leaks through the screw hole. Does this mean I have to replace the hole water pump? Did anyone have the same experience? What would be the best steps to first drain the coolant and then replace the pump? I fear I have to first get the exhaust off? Also because the stupid water pipe between the cylinder heads is behind the pulley I have to open this as well? Hm this seems like more than a day of work just to get to the water pump. Or perhaps I leave this pipe behind the pulley in place and replace the pump like that? Any help is appreciated Thanks a lot Thomas |
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