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Jim Clark
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Joined: January 29, 2004
Posts: 138
Location: Lincolnshire U.K.
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 Posted: Wed May 05, 2010 12:19 pm Post subject: Solex carbs question - wiring |
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Hi
The solenoid controlled idling jet on the side of the carbs - do I just wire them up to the + on the coil / piggy back them off the + off the choke?
Cheers
Jim |
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Matthew Tolbert
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Joined: March 27, 2004
Posts: 706
Location: Georgia
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Mike Fisher
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Joined: January 30, 2006
Posts: 17970
Location: Eugene, OR
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| Posted: Wed May 05, 2010 12:26 pm Post subject: |
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Brush the wires on the solenoids to see if you can hear them clicking open/closed.
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69 FI/AT square Daily Driver
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'68 Karmann Ghia sold
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Jim Clark
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Joined: January 29, 2004
Posts: 138
Location: Lincolnshire U.K.
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| Posted: Wed May 05, 2010 12:29 pm Post subject: |
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Cheers
Guys
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Russ Wolfe
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Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Wed May 05, 2010 12:30 pm Post subject: |
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O1, O2, O3, and O4 in the diagram.
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Gary: OK. Ima poop. |
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19typethree67
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Joined: April 18, 2007
Posts: 351
Location: Grand Rapids, MI
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| Posted: Thu May 06, 2010 8:14 pm Post subject: |
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I'm actually trying to get mine hooked up correctly as well.
The left carb has two terminals on the choke. Is one of these supposed to lead to the right choke/idling jet? Or do you run a separate wire from the coil to the right carb as it indicates in the diagram?
Thanks |
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Russ Wolfe
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Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Thu May 06, 2010 9:17 pm Post subject: |
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Sounds like you have a connection doubler that a PO has installed.
I usually daisy chain from the coil to the choke, to the magnetic cut off, on each side.
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Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
Gary: OK. Ima poop. |
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19typethree67
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Joined: April 18, 2007
Posts: 351
Location: Grand Rapids, MI
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| Posted: Fri May 07, 2010 8:00 pm Post subject: |
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| Russ Wolfe wrote: |
Sounds like you have a connection doubler that a PO has installed.
I usually daisy chain from the coil to the choke, to the magnetic cut off, on each side. |
Sorry kind of blurry..........but this is my left Carb, it is a 32PDSIT out of a 67 fastback. Does this look right? Either one of these connections to the coil and then the other to the right carb?
I also cannot find
| Quote: |
| The solenoid controlled idling jet on the side of the carbs |
Should that be on mine? I cannot find a terminal anywhere back there  |
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trainwreck
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Joined: April 07, 2009
Posts: 191
Location: U.S.A
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| Posted: Fri May 07, 2010 8:21 pm Post subject: |
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| Hit up gene berg industries if you want to bypass the electrical issue. Mechanical idle cut offs are cheap & I dont know of any draw-backs to them. Just my uneducated two cents |
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Bobnotch
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Joined: July 06, 2003
Posts: 22431
Location: Kimball, Mi
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| Posted: Sat May 08, 2010 7:50 am Post subject: |
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| 19typethree67 wrote: |
Sorry kind of blurry..........but this is my left Carb, it is a 32PDSIT out of a 67 fastback. Does this look right? Either one of these connections to the coil and then the other to the right carb?
I also cannot find
| Quote: |
| The solenoid controlled idling jet on the side of the carbs |
Should that be on mine? I cannot find a terminal anywhere back there |
I've never seen a choke cover like that before. Most of them that I've seen only have the spade connector on them. I don't know what connects to where on that one, maybe a ground. 
If you can't find a spade terminal on the idle cut off jet, it most likely was broken off (either by you, or the PO). If it was like that when you got it, unscrew it it, and see if the end is still there. I'm pretty sure Russ has a couple of those out in the shop, but he'd probably have to test them first. You can get new ones from CIP, or maybe even Appletree (call them first to see if they have any) if you need one. You could always go to the non-electric version like the above poster mentioned. I've got them in my 65 Notch, and they've been in there for years.
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Mike Fisher
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Joined: January 30, 2006
Posts: 17970
Location: Eugene, OR
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| Posted: Sat May 08, 2010 8:17 am Post subject: |
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Some Solex's don't have the "sausage shaped" electric solenoids sticking out horizontally from the carburetor body.
_________________
https://imgur.com/user/FisherSquareback/posts
69 FI/AT square Daily Driver
66 sunroof,67,70,71,71,71AT,72,72AT,73 Parts
two 57 oval ragtops sold
'68 Karmann Ghia sold
Society is like stew. If you don't keep it stirred up you end up with a lot of scum on the top! - Russ_Wolfe/Edward Abbey |
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19typethree67
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Joined: April 18, 2007
Posts: 351
Location: Grand Rapids, MI
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| Posted: Sat May 08, 2010 9:59 am Post subject: |
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Thanks guys for all the tips, I'll try to figure it out. Biggest problem is that I'm quite uneducated when it comes to carbs. What does the idle cutoff jet do? Would the previous owner have taken it off for a reason?
I think I took some pics of the engine before I tore it apart. Hopefully I can track them down somewhere and make out how it was hooked up. |
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Russ Wolfe
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Joined: October 08, 2004
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Location: Central Iowa
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| Posted: Sat May 08, 2010 10:04 am Post subject: |
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The electric idle jets, were to shut off fuel in the idle circuits when you turned the key off.
Starting in about 1966, VW started installing them in all of their cars, because with the increase in engine performance, they were also getting hotter combustion chambers.
This led to what is call dieseling when you shut the engine off. The combustion chambers would be hot enough, that incoming fuel would ignite from just the heat.
So, shut off the fuel, shut off the engine.
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Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
Gary: OK. Ima poop. |
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19typethree67
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Joined: April 18, 2007
Posts: 351
Location: Grand Rapids, MI
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| Posted: Sat May 08, 2010 10:25 am Post subject: |
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| Russ Wolfe wrote: |
The electric idle jets, were to shut off fuel in the idle circuits when you turned the key off.
Starting in about 1966, VW started installing them in all of their cars, because with the increase in engine performance, they were also getting hotter combustion chambers.
This led to what is call dieseling when you shut the engine off. The combustion chambers would be hot enough, that incoming fuel would ignite from just the heat.
So, shut off the fuel, shut off the engine. |
Makes sense Russ, thanks! Do you think my 67 should definitley have these cutoff jets? I suppose the PO could have also put older carbs on. I'll get a mirror out and if necessary take the carb off again and check it out. |
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Russ Wolfe
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Joined: October 08, 2004
Posts: 25187
Location: Central Iowa
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| Posted: Sat May 08, 2010 10:40 am Post subject: |
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If you do not have them, and have a problems with dieseling/run-on, if it is not bad enough, just let the clutch out to kill the engine.
That is what we did before the electric cut-offs.
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Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey
Gary: OK. Ima poop. |
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19typethree67
Samba Member
Joined: April 18, 2007
Posts: 351
Location: Grand Rapids, MI
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| Posted: Sat May 08, 2010 10:59 am Post subject: |
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| Russ Wolfe wrote: |
If you do not have them, and have a problems with dieseling/run-on, if it is not bad enough, just let the clutch out to kill the engine.
That is what we did before the electric cut-offs. |
Thanks for the tip Russ. I ran my Fastback a couple years before I took it all apart but I can't remember how it shut off. I don't really recall any excessive dieseling though, my old Chrysler Horizon however, that would diesel for close to a minute after I shut it off  ahhh, good times........good times.
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Mike Fisher
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Joined: January 30, 2006
Posts: 17970
Location: Eugene, OR
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| Posted: Sat May 08, 2010 11:40 am Post subject: |
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Our 67 square had electric solenoids. One was bad and it loped bad at part throttle. We robbed a solenoid off a Bug to get it running sweet!
_________________
https://imgur.com/user/FisherSquareback/posts
69 FI/AT square Daily Driver
66 sunroof,67,70,71,71,71AT,72,72AT,73 Parts
two 57 oval ragtops sold
'68 Karmann Ghia sold
Society is like stew. If you don't keep it stirred up you end up with a lot of scum on the top! - Russ_Wolfe/Edward Abbey |
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