I would check the temp sensor.  These often fail after overheating. Also, are you sure you have water flow in all the right places.  The temp sensor can only sense temp when water is flowing past it.  Also, when the pump was replaced, did you check the housing on the case? Often, when the pumps fail, the impeller damages the housing. This will reduce the pumps efficiency as water will now bypass the impeller and not go any where.  this will make bleeding very difficult and may result in poor cooling at low speeds. Particularly at idle.

Dennis

    -----Original Message-----
    From: John P. Flaherty <jflaherty@PIVOT.NET>
    To: vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM>
    Date: Monday, March 01, 1999 5:25 PM
    Subject: engine flooding
    
    
    Hi all: Hope someone can help
     
    In December, my '84 GL overheated badly as I was running up I95 through Massachusetts. The water pump had seized. I had it towed back to Maine. For numerous reasons, I didn't finish the water pump job until today. Everything seems fine when I start it, runs nice and smooth, warms up normally. As it warms however, it begins to run worse, black smoke out the exhaust. I think something (O2 sensor?) that's supposed to tell it to cut back on fuel as it warms up isn't working. Maybe something I forgot to reconnect? Or disconnected accidentally? Something the overheating damaged? What should I look for? Where is the O2 sensor anyway?
     
    Sorry, haven't had a chance to buy a Bently yet.
     
    Thanks,
     
    John Flaherty
    '84 GL
    '74 SB

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