I've new viton o-rings except for the one on the banjo bolt that feeds the pump overflow back to the top of the filter housing.

My leak though is at the top connection that feeds the return flow of the injectors, the injection pump, and trapped air back to the fuel tank.

It was leaking pretty good before I changed to o-ring and still leaks about the same after changing the o-ring twice.

I tried to snug up the hose by making sure the top retaining plate was putting good pressure on the three hoses it holds in place. Also tried to hold it up in position with cable ties. Still kept leaking.

Guess I'll have to try a new hose next but seems the o-ring replacement should have kept it from leaking.

Questions, Has anyone tapped threads into the filter housing so brass fittings can be screwed in?

Is there another old style housing that might have metal hose fittings?

O-rings are easy to work with but I don't like what seems to be one of the main problem areas for the future. Seems metal fittings and good quality hose clamps would be better long term.

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