This has been working on me ever since we had this conversation. So today, I thought what the hell? I’m already doing a bunch of other work, I might as well jump into this too. So I installed new filters in a reversed flow position, and while I was at it, I swapped in new fuel line ( I had to really, turning those new filters around required more line). I also replaced the vent line tubing. Check out the old filters, next to a new one, discolored and warped from engine heat.
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New filter arrangement.
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