Condition 2 - The drain hose from the side of the heater Part # 668807 is a black thin walled plastic tube which just pushes on to the pipe coming from the heater. It is a black tube, never clear unless an owner has used a tube like that. Black is original but of course any sort of pipe will work. It can find itself stuck to the pipe but it isn't normally stuck on with a mastic, just an easy snug fit. It is retained by a screwed on clip just below the sloped part of the bulkhead/firewall. If the clamp is a bit flat it can also flatten the tube. This in turn can cause a trap for dirt and debris. (I've found a blockage here but nowhere else.) Except for the tube being potentially stuck to the pipe it is easily removed for checking. It will normally just pull out from behind the clip as all that does is direct the tube downwards. After checking the hose give the short heater box pipe a poke around with a bit of stiff wire to check any blockage there.There is no need to remove the fan motor but you can go in check for leaves if you wish. If doing so it's a good time to drip some thin oil onto the bearing areas and allow it to soak in.
Ron, you can use or abuse any of that text as you wish. Yes the picture is a bit scruffy but it was the only one I had and was for interest only. Maybe someone can supply a pic of their neat and tidy one?
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