Posted by Wardner on November 17, 2009 at 13:06:01 from (4.154.247.82):
What are the chances of finding a good regulator? (some call them "evaporators")
When I bought my W-400 LP ten years ago, the liquid line had been removed. It ran OK on the vapor line but I never worked it hard. Now the vapor side is no good. The tractor will only run if I just barely crack the vapor valve at the tank. Too little fuel is just as bad as too much.
I went to the archives and found a guy who sells overhaul kits. $80 for some gaskets, o-rings, rubber valve seats, and two flat diaphrams. The kit arrived in 3 days and I disassembled the regulator. Lots of rust in there on the low pressure side. I can't understand why that should be so. If they are prone to rusting, why didn't Ensign use stainless steel or brass?
Anyway, the low pressure spring has been reduced to a few unconnected coils. The steel partition plate is heavily rusted. It may not look like much after I sandblast it. The low pressure valve maybe serviceable for now but will eventually need to be replaced.
So the question is: Am I going to luck out and find a good regulator or will they all have one foot in the grave? The damage cannot be determined until the regulator is off the tractor and disassembled.
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