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Old 04-10-2018, 12:30 PM
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edwardc edwardc is offline
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And it's a commonsense safety issue. If a fuel line ruptures or comes off of a barb, you don't want the fuel pump to keep pumping gas into the bilge!! The OPSS kills the pump when the engine dies and prevents this.

I had this happen once on a Volkswagen microbus which did NOT have an OPSS! Talk about a heart-stopper! Gas was spraying over a hot exhaust manifold and boiling!!! Somehow, the gods smiled on us and we didn't go up in a ball of flame. I do NOT want a repeat of that experience!
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