How to lean up fuel on a solex 30 pict 3 carb

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How to lean up fuel on a solex 30 pict 3 carb

Post by Ronnieboy59 on Sun Nov 10 2013, 15:42

Had loads of issues with my 16sp engine this last few weeks, running really rough, today i did the valves which helped, checked all HT leads and dizzy cap, all exhaust and manifold nuts and bolts, took out the recently new plugs and all are black suited, all cleaned and put back and engine running ok, as its running rich i have no idea how to lean up the fuel ??

Help appreciated

Ta

Ron

AND i hope all you folks are good as the site has been oh so quiet.
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Re: How to lean up fuel on a solex 30 pict 3 carb

Post by Grizzly on Mon Nov 11 2013, 08:42

Hi ya Ron,

This is what you need http://www.vw-resource.com/30PICT2.html remember always favour richer over leaner, the latter can cause damage.

Forum always gets very quiet over winter doesnt help that their are so few of us these days.

Cheers

Daz

Below may be useful too.

28 PCI... with removable Venture… Venturi =21.5 mm… Main Jet = 117.5/122.5… Air correction jet =180/200…Pilot jet = g50… Idle air jet drilling = 0.8… Power fuel jet = no…Emulsion tube = 29

28PICT-1… 1961-1965.…Venturi = 22.5 mm… Main Jet =122.5… Air correction jet=125z/130Y Pilot jet =g55… Acc pump jet = .50…Idle air jet drilling = 150… Power fuel jet=1.0mm Accelerator pump feed = 1.1-1.4cc/stroke…First year of Automatic choke.

30 PICT-1… 1966-1967…Venturi = 24.0 mm… Main Jet = 125… Air correction jet =125z/135z Pilot jet = g55… Idle air jet drilling = 150… Acc pump jet = 50…Power fuel jet = __ Accelerator pump feed = 1.1-1.6cc/stroke…Larger Venturi

30 PICT-2…1968-1969…Venturi = 24.0 mm… Main Jet = 116/125… Air correction jet =125z/135z Pilot jet = g55… Idle air jet drilling = 130/135…Acc. pump jet = 50… Power fuel jet =60 Accelerator pump feed = 1.3-1.6cc/stroke…First year for Power fuel system which draws fuel directly from the float chamber under full load at high Speed.

30 PICT-3…1970…Venturi = 24.0 mm… Main Jet = 122.5/112… Air correction jet = 125z Pilot jet=65… Pilot jet air bleed = 135…Acc. pump jet = 42.5… Auxiliary fuel jet = 45 Auxiliary air jet =130…Accelerator pump feed = 1.3-1.6cc/stroke…Idle speed is controlled by bypass around the throttle plate.

34 PICT-3...1971-1974… Venturi = 26 mm… Main Jet = 127.5/130… Air correction jet = 75z /80z Pilot jet =g50/55… Pilot jet air bleed = 147.5…Acc. pump jet = 42.5… Auxiliary fuel jet =42.5/47.5… Auxiliary air jet = 90…Accelerator pump feed = 1.3-1.6cc/stroke…Larger Venturi.

34 PICT-4…1974 (Calif.)…Venturi = 26 mm… Main Jet = 112.5 to 130… Air correction jet = 75z… Pilot jet =55 to 60… Pilot jet air bleed = 147.5… Acc. pump jet = 42.5…Aux. fuel jet =42.5… Auxiliary air jet = 90…Accelerator pump feed = 1.1-1.7cc/stroke

Float weight 1961-1967 = 5.7 grams and 1968-1974 = 8.5 grams
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Re: How to lean up fuel on a solex 30 pict 3 carb

Post by Ronnieboy59 on Mon Nov 11 2013, 10:00

Thanks for the info Daz,,,Yes Rob and Dave are a wealth of knowledge and i do check them out from time to time, will just tweak the air fuel a tad and not too lean, only need the thing sorted for this weekend as we are off to the Glastonbury Carnival, then over the winter i hope to get the new engine in.

Hope all good and see you at the new place for club meet,

Thanks again

Ron
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Re: How to lean up fuel on a solex 30 pict 3 carb

Post by Grizzly on Mon Nov 11 2013, 17:00

Cool have fun, looking forward to the new venue for the club meet looks nice from what I have seen of it outside.

Daz
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