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Old 07-18-2021, 04:24 PM
campbdon campbdon is online now
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I believe I've improved my fuel delivery system considerably with all your help.
Have added a polishing filter, fuel pressure gauge, and secondary shutoff (before carb) . Next step is to add water/fuel separator. Most advice I've read has it as the first element in the chain, however as I already have a coarse filter and polishing filter (10 microns) as well as fuel hose routing challenges in the engine compartment and bulkhead what if I put the separator AFTER the pump and polishing filter instead, or might the polishing filter foul preventing any water content reaching the separator ?
Such as one of the following...

Tank -->FS1 --> F1 -->Pump-->F2 -->H20/filter -->FPG -->FS2 --> Carb
Tank -->FS1 --> F1 --> H20/filter -->Pump-->F2 -->FPG -->FS2 --> Carb

FS1 = fuel shutoff primary
F1 = Filter1 (coarse)
F2 = Filter 2 (polishing)
FS2 = Fuel shutoff secondary (to be added on bulkhead)
FPG = Fuel pressure gauge (to be added on bulkhead)

Thanks for any feedback
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  #27   IP:
Old 07-18-2021, 05:01 PM
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Peter Peter is online now
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Fuel-water separator first. If there is water in the fuel it will make a mess of any filter that is not designed to deal with water.

Hope that helps,

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