Hey RT----
When you asked what the best modifications one could make to the FL120 were and I posted that list, I left out one of the best mods there is.* I was reminded of it by a post on T&T.
And that is to get rid of the CAV canister filters used as secondary filters on the rear of the engine and replace them with spin-on filters.* The CAV multi-part canister filters are a pain because the O-rings and separate bottom plates promote fuel leaks.* Plus the plastic drain valves in the bottom plates can strip out over time.
The solution is to get rid of the canister filters altogether and replace them with a pair of adaptors made by Parker-Hannifin.* You retain the filter mouting bracket, so no changes are needed to the fuel lines between the lift pump and the filter mount and the mount and the injection pump.
The Parker adaptor mounts in place of the canister filter, and then you mount a standarrd spin-on filter to the adaptor. We*use Baldwin filters on our boat but any same-size spin on from*the manufacturer of your choice will work.* You use the same stock bleed screws in the filter mount to bleed the spin-ons.
A big advantage of the spin-ons is that they can be pre-filled with fuel before you install them.* Which greatly reduces the time it takes to bleed the fuel system if you're using the manual lever on the engine's lift pump.
I takes two adaptor kits per engine.* When we bought ours some ten years ago, they were about $50 per kit.
This same adapter is applicable to some models of Perkins engine, so the kit contains two mounting bolts, a long one and a short one.* The instructions call out which bolt to use on which engine.
When you asked what the best modifications one could make to the FL120 were and I posted that list, I left out one of the best mods there is.* I was reminded of it by a post on T&T.
And that is to get rid of the CAV canister filters used as secondary filters on the rear of the engine and replace them with spin-on filters.* The CAV multi-part canister filters are a pain because the O-rings and separate bottom plates promote fuel leaks.* Plus the plastic drain valves in the bottom plates can strip out over time.
The solution is to get rid of the canister filters altogether and replace them with a pair of adaptors made by Parker-Hannifin.* You retain the filter mouting bracket, so no changes are needed to the fuel lines between the lift pump and the filter mount and the mount and the injection pump.
The Parker adaptor mounts in place of the canister filter, and then you mount a standarrd spin-on filter to the adaptor. We*use Baldwin filters on our boat but any same-size spin on from*the manufacturer of your choice will work.* You use the same stock bleed screws in the filter mount to bleed the spin-ons.
A big advantage of the spin-ons is that they can be pre-filled with fuel before you install them.* Which greatly reduces the time it takes to bleed the fuel system if you're using the manual lever on the engine's lift pump.
I takes two adaptor kits per engine.* When we bought ours some ten years ago, they were about $50 per kit.
This same adapter is applicable to some models of Perkins engine, so the kit contains two mounting bolts, a long one and a short one.* The instructions call out which bolt to use on which engine.