Looking at my Pict 34 carb and all of the vacuum hoses are cappe

[chromecarz00]

I've got an electric ignition system and an aftermarket filter on top. I just want to make sure i'm not missing anything on the carb. It won't idle right and lurches a bit, so I'm going through piece by piece and seeing why.

Thanks!

[Bama Dave]

Photos will help. Other engine specs will help.
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David Richerson

1970 Beetle
1971 Super
1972 Baja

[Cusser]

If you have a 34PICT-3 carb and all the vacuum ports are capped off, chances are that you have the 009 type centrifugal advance distributor.

This is a known poor performing combination.
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297

[andk5591]

Current thread that may interest you https://www.thesamba.com/vw/forum/viewtopic.php?t=683114&highlight=
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

[chromecarz00]

1600 single port. Keep forgetting I don't have that in my signature.

How can I tell if it's a 009? Can't see any writing on it

[Bama Dave]

The serial number on it.
_________________
David Richerson

1970 Beetle
1971 Super
1972 Baja

[David_nc_72std]

If the distributor has no numbers anywhere on the body, and has no vacuum canister, its more than likely an 009 type.

How do you have the timing set? Generally with an 009 you set the timing at around 28-30 degrees at full advance, and the idle timing falls where it wants to. The quality of the distributors varies wildly, as does the amount of advance, so you really need to use a timing light and actually measure the idle timing to see if its anywhere near suitable.

Single port engine never came with 34 pict 3 carburetors, so it would help to know the specific carburetor you have. Is it a Solex or aftermarket version, and is there a number stamped onto the side of the mounting flange?

[tasb]

[quote="David_nc_72std"]If the distributor has no numbers anywhere on the body, and has no vacuum canister, its more than likely an 009 type[/quote]

I'll up that to "without a doubt". Adding that it is a Chinese clone.
_________________
Roads Scholar &
1957 Kombi low mileage 36 hp governor equipped M 178 Slow Drag Winner 2014, 2015, 2018

1965 hardtop Deluxe Microbus owned since 1990 M 620 factory 12 v 1500cc

1961 (October)Single Cab- Road Trip Workhorse

[chromecarz00]

I'm not sure where the timing is set, I took it to a mechanic who put all these parts in when I got it and haven't touched it yet. However, I put some fresh fuel and got tighter caps for the vaccuum lines and everything is working much better now.

I'm going to futz with the timing though as I feel it may have gone off slightly. Any pointers?

[David_nc_72std]

With an 009, set the timing at around 28-30 degrees at full advance, instead of at idle.

If you have a dual-port engine, check the left side casting where the intake splits, sometimes there is a vacuum port there, and if its plugged it might be leaking too.

Instead of the vacuum port plugs, I prefer actual vacuum line plugged on the end - a round-head screw with an unthreaded section, with the threads cut off, makes a nice plug, or solid aircraft-style rivets. Most vacuum plugs I've seen are rather thin material and don't seem to hold up well.

[andk5591]

The "vinyl" looking vac caps hold up way better than the rubber ones. I just got done doing a quick initial repair on a 73 standard thats in the shop right now. Car wouldn't idle for crap. 3 of the caps were all cracked and leaking. After replacing the caps, adjusting the choke and tuning the carb, it runs great. Still need to get out my crank pulley template and make marks on the pulley for 28 and 32 degrees so I can properly set the timing. It looks close (about 10 degrees at idle), but max advance setting is what it needs. If you dont have a degreed pulle, but have a mark for TDC, you can download and print the template that is on here somewere or go to the "hot spark" website and download it from there.
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

[tasb]

Here:

https://www.thesamba.com/vw/archives/manuals/degree_wheel.php
_________________
Roads Scholar &
1957 Kombi low mileage 36 hp governor equipped M 178 Slow Drag Winner 2014, 2015, 2018

1965 hardtop Deluxe Microbus owned since 1990 M 620 factory 12 v 1500cc

1961 (October)Single Cab- Road Trip Workhorse