QUOTE(Petepat @ Jul 9 2023, 07:49 AM)
I have a 72 1.7L with twin carbs, when moving the fuel pump to the front I noticed the return fuel pipe had been terminated presumably because it is no longer required. Question do I need the venting system, expansion tank, carbon filter and all the pipework, morden cars don't have this? I live in France by the way not California!!
modern cars do have it.
even europeans! have had it since at least the mid 90s if not slightly earlier.
i have a renault clio RS here in aus.
the whole kit and caboodle is on it, carbon cannister and all.
and typically french. the vapor line runs dangerously close to the crank pulley timing belt and is held on by plastic clips of typical french quality. these have since been replaced by me using usa quality know how - zip ties.
less dangerous. engine less likely to detonate due to timing belt destruction.
attached is how its done on 914s for the rest of the world that did not have carbon canisters back then in the jurassic era (half a century ago.
dunno where you get the little T piece connector that lets you run the expansion tank vent hose into the plastic filler overflow but...... you would have to find something suitable. i'd say the original part is well and truly NLA being europe only.
alternatively find a way to feed the expansion tank hose (very small diameter) down to underside of car in steering rack area. helps keep any fumes out of the front luggage compartment area.
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not so relevant to EFI engines converted to carbs.
but.
1.8 euro was a factory twin carb.
fuel pump was mechanical. same as twin carb buses.
on underside of engine near flywheel.
no return line. think it was only at 3 psi same as most carbed VWs of the era.
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