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mnussbau Samba Member

Joined: August 26, 2006 Posts: 4610 Location: Central Maryland
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Posted: Thu May 29, 2008 5:46 pm Post subject: 34 Pict 3 Accelerator Pump Linkage |
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Picked up a used OG 34 pict 3 carb for $5, rebuilt it, and got a new Bosch SVDA to go with it. The carb has the generator style accel pump linkage. I haven't tried to install it but am anticipating it will hit the alternator.
I have an H30/31 (with the low profile-type accel pump linkage) that this carb will replace. Any reason I can't pull that linkage and put it on the 34 pict 3? Is it a direct replacement? If possible I'd like to avoid grinding the alternator body. _________________ Mike
‘74 bug vert
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jzjames Samba Member
Joined: September 27, 2007 Posts: 1921 Location: Windy Point, WA
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Posted: Fri May 30, 2008 7:05 pm Post subject: |
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| I dunno. The H30/31 fuel inj. pump link is probably engineered specifically for the fuel shot for that carb. I would get out my 4 1/2 in. grinder and carefully grind off a small amount at a time until the fuel inj. linkage does not interfere with the alt. casing. Problem will be solved. |
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Glenn  Mr. 010

Joined: December 25, 2001 Posts: 80160 Location: Sneaking up behind you
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Posted: Fri May 30, 2008 7:07 pm Post subject: |
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Or find the correct part.
_________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare
עַם יִשְׂרָאֵל חַי |
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mnussbau Samba Member

Joined: August 26, 2006 Posts: 4610 Location: Central Maryland
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Posted: Fri May 30, 2008 7:37 pm Post subject: |
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I just now got a chance to look at the H30's linkage carefully. The attachment on the right side is not bolted on to the throttle shaft like the 34 pict's, instead it looks pressed on somehow. So I'd have to use the entire throttle shaft including the arm. Not sure I want to go mucking up an otherwise good carb.
| Glenn wrote: |
| Or find the correct part. |
Yeah, I've done some looking, nothing so far. This might be a good excuse to buy that Dremel I've been putting off...
_________________ Mike
‘74 bug vert
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Crippler Samba Member

Joined: November 01, 2005 Posts: 614 Location: Victoria, TX
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Posted: Fri May 30, 2008 8:19 pm Post subject: Re: 34 Pict 3 Accelerator Pump Linkage |
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| mnussbau wrote: |
Picked up a used OG 34 pict 3 carb for $5, rebuilt it, and got a new Bosch SVDA to go with it. The carb has the generator style accel pump linkage. I haven't tried to install it but am anticipating it will hit the alternator.
I have an H30/31 (with the low profile-type accel pump linkage) that this carb will replace. Any reason I can't pull that linkage and put it on the 34 pict 3? Is it a direct replacement? If possible I'd like to avoid grinding the alternator body. |
i thought the 34 pict 3 accel pump linkage was able to be flipped to accomodate a generator or alternator... (as per Glenn's pic)
i think i have a 34 pict around here.... _________________ 1973 VW bus |
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DrDarby Samba Member
Joined: May 12, 2004 Posts: 6544 Location: Northern Illinois
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Posted: Fri May 30, 2008 8:24 pm Post subject: |
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No, you cannot flip the linkage it is an entirely different beast. _________________ Midwest Autosavers, Inc. Crystal Lake, IL |
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mnussbau Samba Member

Joined: August 26, 2006 Posts: 4610 Location: Central Maryland
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Posted: Sun Jun 01, 2008 4:22 pm Post subject: |
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Ok, so I installed the carb as is and ended up filing down the side of the alternator just a bit. _________________ Mike
‘74 bug vert
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Crippler Samba Member

Joined: November 01, 2005 Posts: 614 Location: Victoria, TX
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Posted: Sun Jun 01, 2008 5:38 pm Post subject: |
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cool. i love using my dremel. _________________ 1973 VW bus |
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mnussbau Samba Member

Joined: August 26, 2006 Posts: 4610 Location: Central Maryland
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Posted: Sun Jun 01, 2008 6:38 pm Post subject: |
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I really thought this would be the job to prompt me to buy one, but alas, I found a "flat bastard" file in the basement. (Hey, wasn't he in an Austin Powers movie?!)  _________________ Mike
‘74 bug vert
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jzjames Samba Member
Joined: September 27, 2007 Posts: 1921 Location: Windy Point, WA
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Posted: Mon Jun 02, 2008 4:13 am Post subject: |
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| make sure that accel pump lever does not touch the alt. casing at all when the carb is mounted. I had to grind quite a little bit off of mine to get the clearance,.. maybe almost 1/4" deep. Verify that the lever has not been bent, set the adjustment setting in the middle, and go from there. |
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gobeatle Samba Member
Joined: November 04, 2007 Posts: 97 Location: Mid MIchigan
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Posted: Sun Jul 27, 2008 11:35 pm Post subject: |
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| Can someone tell me how I might go about getting the correct linkage, shown in Glenn's post, if I have an alternator in the way of you 34-3 linkage. The alternator linkage setup doesn't seem very common. |
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gobeatle Samba Member
Joined: November 04, 2007 Posts: 97 Location: Mid MIchigan
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Posted: Mon Jul 28, 2008 7:13 am Post subject: |
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| Is it possable to file and notch the exsisting cam that hooks to the linkage to look and work like Glenn's post? I took it apart and it looks like it can be done that way. Is the correct linkage for an alternator setup shorter than what I have now. I really don't want to bend the cam to get it to go around the alternator. |
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gregthomas Samba Member

Joined: March 24, 2008 Posts: 927 Location: Big Blue Nation
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Posted: Mon Jul 28, 2008 7:27 am Post subject: |
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Isn't the linkage on an H30/31 adjustable. If so, I think you could use it and then adjust it for the correct shot for your carb. _________________ Checkout my church's website: http://www.ebcky.com
We offer podcasts of Sunday Sermons, articles and more! |
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gobeatle Samba Member
Joined: November 04, 2007 Posts: 97 Location: Mid MIchigan
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Posted: Mon Jul 28, 2008 10:38 am Post subject: |
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| Okay, thanks, that's good information. I'm wondering also about the cam attached to the shaft. There must be a cam specific for the alternator application or can I find that on another carberator, like a 30/31. Thanks for your help. |
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jzjames Samba Member
Joined: September 27, 2007 Posts: 1921 Location: Windy Point, WA
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Posted: Mon Jul 28, 2008 7:42 pm Post subject: |
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No. I dont think there is a cam you can put on your 34 pict 3 carb that will clear the alt. Get a diff. carb or start doing some judicious grinding.  |
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mnussbau Samba Member

Joined: August 26, 2006 Posts: 4610 Location: Central Maryland
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Posted: Mon Jul 28, 2008 9:10 pm Post subject: |
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| gregthomas wrote: |
| Isn't the linkage on an H30/31 adjustable. If so, I think you could use it and then adjust it for the correct shot for your carb. |
yes, that linkage is adjustable. It's just not movable onto the 34pict 3! _________________ Mike
‘74 bug vert
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gobeatle Samba Member
Joined: November 04, 2007 Posts: 97 Location: Mid MIchigan
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Posted: Mon Jul 28, 2008 10:04 pm Post subject: |
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| Does everyone with an alternator and a 34-3 have their linkage and cam like what Glenn's pic shows. I took mine apart and couldn't get it to look like that. The cam had to be reversed and did not look like the photo. Did Solex make a spicific cam for an alternator 34-3 carb aplication? |
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volkenstein Samba Member

Joined: June 26, 2005 Posts: 871 Location: The Land of Oz
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Posted: Mon Jul 28, 2008 10:46 pm Post subject: |
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Gobeatle,
If it was an OE fitment, yes. VW changed the plates to suit. Since my car was originally generator equipped, I ground clearance into the alternator body.
I've done the same as you. Basically, you either pillage an alternator carby or fab your own. I found no-one (VW shops) that sold the plates seperately.
Volkenstein _________________ 71 RHD AS Super - "Klaus"...
Wisdom of youth, energy of old age... |
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keifernet Samba Search & Rescue
Joined: May 11, 2002 Posts: 19395 Location: Samba Center for Behavioral Science
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Posted: Tue Jul 29, 2008 8:52 am Post subject: |
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| gobeatle wrote: |
| Does everyone with an alternator and a 34-3 have their linkage and cam like what Glenn's pic shows. I took mine apart and couldn't get it to look like that. The cam had to be reversed and did not look like the photo. Did Solex make a spicific cam for an alternator 34-3 carb aplication? |
| jzjames wrote: |
No. I dont think there is a cam you can put on your 34 pict 3 carb that will clear the alt. Get a diff. carb or start doing some judicious grinding. |
Yes there is a specific linkage made for alternator...
(And as Dr Darby noted in his post) Many look at that picture or diagram that Glenn and others have posted and think all you have to do is just "flip flop" the linkage parts over etc and that does not work, the parts are different. IF you flip it over the adjustment has to be moved all one direction and even then the linkage is not in position to "work properly".
I have a method where I take gen style linkage bits and cut one piece with hacksaw and then mig weld it back with the slotted end for the throttle shaft oriented correctly... one other minor mod to the threaded screw hole and wallah! ....Alt linkage. I do them in batches of about 8 or ten... With more and more people converting to alternators and original alt style linkage in short supply I had to figure something out
Grinding the alt and some on the lock screw of the gen style can get the job done... but BENDING the linkage (like some people do) is not good IMHO|
H 30/31 accelerator pump parts are unique to that carb. |
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gobeatle Samba Member
Joined: November 04, 2007 Posts: 97 Location: Mid MIchigan
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Posted: Tue Jul 29, 2008 9:12 am Post subject: |
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| Ah, thanks Keith, thought you would never jump in. So you copied the alt. linkage setup when you fabricated your? I think I need to get one of those from you. Thanks for the info. |
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