Stock dual carbs

ecdez · Post by **ecdez** » Mon Aug 16, 2004 8:26 am

Unfortunately, the PO changed it over to the progressive. I can't find a trace of the original FI.

I've got a single Dellorto 36 on my rabbit engine, but am considering changing it over to dual sidedrafts. If that happens, I will probably try to find another 36 to use them on the Type 4. Like I said though, money is tight and that won't happen for a while.

I guess it's settled then. I'll get some rebuild kits and get the duals ready to go. Thanks for the input.

raygreenwood · Post by **raygreenwood** » Mon Aug 16, 2004 9:29 am

The original solexes work very well....as well. The only reason people moved away from them...is that they are complex to tune. They have what is called the "central idleing" system. The left hand carb controls all idle. It actually makes them easier to balance when they are set up properly. Don't throw them away. They work just as well as Kadrons. The Kadrons were made to replace them..as parts were expensive back in the day....and the Kadrons are just simpler to set up. They Kads don't perform any better of worse.
The solexes are not any harder than a 34 pict, to rebuild. The idle info is in all of the factory manuals. Ray

ecdez · Post by **ecdez** » Mon Aug 16, 2004 10:34 am

Sadly, I am inflicted with a disease called "packratamosis" wich does not allow me to throw anything away. As of yet, there is no know cure.

I guess I'll have to dig up a factory manual and check it out. I need to rebuild the Type 3 carbs anyway, so I might as well use them. I'll keep the others as an option when I go to change everything around.

Thanks

vwbill · Post by **vwbill** » Mon Aug 16, 2004 8:43 pm

I always like the solex carbs! I have the bus bently green books since I was a busboy for a while. It shows a mixture distributor dashpot tee(three hoses) thing between the carbs also! The straight up in the book says goes to aircleaner and has one of those little rubber elbows and a hose with another elbow about a foot away. The tower next to it is the idle speed adjusting screw. I guess the hose attached to the old air box of the bus. The front big tube in the front of the left carb goes to the mixture distributor which has three hose two from that carb the other hose comes from the tube under the carb in the manifold the other carb hose is from the tube in the manifold and makes up the central iding system. So the system is made up of the mixture dist. the idle adjustment screw and mixture control screw.
That carb system worked really well with the normal rebuilding. I dont like the Weber carbs I guess I dont like the playing with jet thing too much! I was looking at getting a pair of those type carbs from Bob as backup on the road,lol!!! Goodluck and I'll email the pics from the book if you need. Bill

Joksa · Post by **Joksa** » Tue Sep 13, 2005 12:59 pm

Does every PDSIT setup have this central indling system?
I have a 41x wagon's 1700 engine. I got the complete engine
and it shoud be original, but the carburetor systems doesn't
have any clues about the central idling.

R2.0 · Post by **R2.0** » Tue Sep 13, 2005 4:25 pm

ecdez wrote:Sadly, I am inflicted with a disease called "packratamosis" wich does not allow me to throw anything away. As of yet, there is no know cure.

Au Contraire, mon frere, there IS a cure:

1) Sell 3800sf house with full basement and 2 car garage.
2) Buy 1800sf condo with no basement, no garage.

This will cure you of packratamosis, with one unfortunate side affect: the need to wash your pants when you see what storage will cost

R2.0

vwbill · Post by **vwbill** » Tue Sep 13, 2005 4:43 pm

Hey, the Cylmers doesnt seem to show it in the 411/412 book? It looks like they show a volume control screw that looks like a big screw in the body of the carb and then a idle screw on the throttle rod/body. I would guess you would have to do some kinda throttle rod adjustment so they would be in sync. for the flappers? I dont know how you would adjust the volume control screws on both to get them to be in sync. but I would guess you could do it with the idle speed drop off screw down method? bill

tuna · Post by **tuna** » Tue Sep 13, 2005 4:50 pm

Get the "green" Bentley manual, the one for the '68-'79 Transporters. I know the '74 Transporters (Bus) used the 34PDSITs with the central idling system. How do I know? My '74 Westy has it.

Tuna

Guest · Post by **Guest** » Wed Sep 14, 2005 4:19 am

vwbill wrote:Hey, the Cylmers doesnt seem to show it in the 411/412 book?

So it is possible my 41x engine has original 34 PDSIT setup without central idling system.

vwbill · Post by **vwbill** » Wed Sep 14, 2005 4:21 pm

I dont know if the Cylmers is too specific for the carb setup and I dont know if the application from the Bus was the same for the 411/412 setup?
I have the bus Bently book for the engine sections along with because I used to have buses but I havent had a dual carb bus just seen it! I had the basic 1600 70's series and westfalia 84 waterboxers. Maybe Ray or someone can be more clear on the carb setups! bill

Joksa · Post by **Joksa** » Fri Sep 16, 2005 12:34 am

My 41x manifolds lack also ports for the central idling piping so most probably it hasn't never been there.

Does the 411/412 Clymer have any adjusting guide? I have the green bus bentley and a bus haynes and I think those and some net resources like http://www.ratwell.com/technical/DualCarbs.html are aplicable at least partly.