30 PICT-3 carb rebuild, from a poor start!

[mcdonaldneal]

I'm not sure whether there is going to be a point to this thread, but I thought it might be useful to some people to see the steps involved in servicing/refurbishing a stock carburetor.
What might be interesting is that the carb in question is in pretty dirty condition, grime outside and inside. From the condition of the screw heads it doesn't seem to have been opened up many times, if at all. It's obviously well used and might end up needing the throttle shafts rebushed, as there is a bit of side to side play in it.
The reason I'm doing it is that I searched for a long time for the stock carb for our USA spec 1970 Ghia, with the twin arms for the throttle and the throttle positioner. Hens' teeth doesn't begin to describe them, but I eventually found this one on EBay. I'd like to bring it back to stock condition, so I'm prepared to have a go, however bad the carb looks!
The good:
Correct carb 30 PICT-3, will replace the H30/31 I have at the moment
Parts and jets all seem to be present, except the throttle positioner has lost one of the connection tubes
The bad:
The grime has stuck everything solid, so at the moment I can't get the top off, the choke off or the choke diaphragm. I've left it to soak in penetrating oil.
Possible rusty looking deposits coming out of the main jet access hole.
Some play in the throttle shaft. Might need rebushing, we'll see!
Starting pics just now, and I'll post up progress as I go (which might be sporadic!)

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1978 marino yellow Bay Dormobile camper
1969 signal orange Karmann Ghia convertible
1976 martini olive Bay Dormobile camper

Stop dead photo links! Post photos to The Samba Gallery!

[Bleyseng]

I just rebuilt one for mine so you should've asked me as they are around here.
Carb cleaner should clean it up nicely or take it apart and have it glass bead blasted. Send out the gold parts to get recoated.
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70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

[Canghia]

I found an old carb at a swap meet that looked ok and I took it apart, removed the choke, the idle cut off, separated it into two halves and then soaked it in pinesol for a few days. It cleaned up beautifully and my garage never smelt better. Then blasted it with a homemade a soda blaster and some good old fashioned arm and hammer as the blast media. That got most of the grime off of it and cleaned it up to a nice satin look. Works like a charm now.

[mcdonaldneal]

Thanks guys, that’s the plan, split it, soda blast and then zinc plate the steel parts.
I loosened everything up last night but it was still stuck together. Before I get out the BFH I’ll try soda blasting the crud off and leaving a bit of penetrating oil to loosen things up.
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1978 marino yellow Bay Dormobile camper
1969 signal orange Karmann Ghia convertible
1976 martini olive Bay Dormobile camper

Stop dead photo links! Post photos to The Samba Gallery!

[sputnick60]

I’m a big fan of water blasting, especially for small pieces made of alloys like the carburettor and even the engine block. The polished result makes for an outstanding finish.
Nicholas
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'66 Karmann Ghia Cabriolet...
'65 Porsche 356C Coupe...
2005 Mecedes Benz C180 Kompressor Estate
Stop dead photo links! Post your photos to The Samba Gallery!

[mcdonaldneal]

Still looking good. I gave the whole thing a quick blast of soda and the oil on the joints has freed things up.
Once the top is off, I can see that the float reservoir has a layer of rust coloured dust, but actually doesn't look too bad.

The main gasket is very cleanly indented, which suggests again that the carb has not been taken apart multiple times. The choke assembly and its diaphragm had been stuck, but the penetrating oil meant they could be knocked off with a soft faced hammer. Everything else disassembled fairly easily, the float valve fibre washer was stuck, and spilt on removal. I think the (German) rebuild kit has a metal washer as a replacement.

Does anyone know if this carb would have two check balls, or one?

_________________
1978 marino yellow Bay Dormobile camper
1969 signal orange Karmann Ghia convertible
1976 martini olive Bay Dormobile camper

Stop dead photo links! Post photos to The Samba Gallery!

[60ragtop]

2 check balls like below. Not a 30 PICT 3 but the same check balls.

[wcfvw69]

VW 236-1/2
30PICT-3
113905205M 113905205T
BUS
1600 SP
8/69
X112.5
140z
g65
Typ 2 1600, eng code B5116437- onward, M157(emission control)

Here's the info for that base flange number carb Phil. What distributor are you running?

Here's what a 1970 Ghia would of had on it-

VW 226-1
30PICT-3
113905205T
Bug & Ghia
1600 SP
8/69
112.5
125z
65
USA Manual Aux Fuel 45
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc

Decades of VW and VW parts restoration experience.
The Samba member since 2004.

**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours**

[mcdonaldneal]

Thanks both, good information.
I have the 113995205T distributor, and I will change out for a refurbished one when I change the carb.
I've also got a selection of jets, so I can fine tune when I install.

I don't know if this is answerable, but I'm not clear on what the difference is between, for instance:
A 112.5 and a x112.5 jet
65 and g65
And, is there a 140 and a 140z air jet

I think I've mostly disregarded the additional letters in the past, but maybe there is a significant difference?

I could also do a search...
Maybe tomorrow!
_________________
1978 marino yellow Bay Dormobile camper
1969 signal orange Karmann Ghia convertible
1976 martini olive Bay Dormobile camper

Stop dead photo links! Post photos to The Samba Gallery!

[wcfvw69]

[mcdonaldneal]

Despite having the part number and the code for the bus, the carb has the same jets as Bill posted for a Ghia. I'll fine tune with a wideband when I install, but these jets should get me going!

I've managed to find time to continue with the cleaning, so the body has been soda blasted and lightly polished, and the small parts and levers etc will hopefully be plated this afternoon.

I struggled to get the throttle positioner arm off the throttle shaft. It looks as though it should pull more or less straight off, but it wasn't keen to move, so I left it in situ. Any tips?

_________________
1978 marino yellow Bay Dormobile camper
1969 signal orange Karmann Ghia convertible
1976 martini olive Bay Dormobile camper

Stop dead photo links! Post photos to The Samba Gallery!

[mcdonaldneal]

At least I'm making a bit of progress today!
Finished what I can do of the disassembly by removing the check balls. The threaded plug in the picture can be removed with a beetle taillight screw, but I had to make do with an ?M4 screw I had hanging around. The other check ball I dropped in the garage, which provoked a great deal of swearing at my incompetence, but I found it with a torch and a magnet!
Plating is in progress and the parts are drying in the garden. The nuts and washers are in a wire basket, so will be a bit uneven. Never mind.

_________________
1978 marino yellow Bay Dormobile camper
1969 signal orange Karmann Ghia convertible
1976 martini olive Bay Dormobile camper

Stop dead photo links! Post photos to The Samba Gallery!

[ELFRIED]

interesting how does that plating actually work?

[jwold]

I've read about and successfully used lacquer thinner & compressed air to soak carbs in & blow out passages. Is Pine-sol strong enough to get those inner passage ways cleaned out and dissolve that gas-varnish-crud? This is after removing anything plastic or rubber of course.

[mcdonaldneal]

[mcdonaldneal]

[Canghia]

The pine sol soak works great. It strips the metal of oil and grease, isnt perfect but I find it works well. Then I blasted the carbs with a homemade soda blaster and they came out pretty clean.

Give it a search, there is lots of stuff on it on the net. I have used it a few times. Never any issues. I have not been thrilled with carb cleaners you get in stores these days. The good ones seem to be the old ones and you cant get those anymore.

[wcfvw69]

https://www.amazon.com/Messer-industrial-Ultrasoni...&psc=1


Phil, buy something like this. I just bought one like it. I'm in love! I threw a complete, filthy, nasty distributor in it with Simple Green degreaser. It gets the water 140* hot. 45 minutes later, it was spotless.

I should of bought this bigger one years ago for my parts cleaning.
_________________
Contact me at [email protected]
Follow me on instagram @sparxwerksllc

Decades of VW and VW parts restoration experience.
The Samba member since 2004.

**Now rebuilding throttle bodies for VW's and Porsche's**
**Restored German Bosch distributors for sale or I can restore yours**
**Restored German Pierburg fuel pumps for sale or I can restore yours**
**Restored Porsche fuel pumps or I can restore yours**
**Restored Porsche distributors or I can restore yours**

[ELFRIED]

Great thanx about the plating
what do you use as zinc electrolyte?

[mcdonaldneal]