TheSamba.com :: View topic - Any 71 westy gurus? a green wire vexes me

Wed May 22, 2002 12:25 pm

Thanks for checking this inquiry. The situation is this: 1600 cc engine with a solex 34 carb, wiring harness coming fromthe right side above engine has a red wire to the oil sensor; blue one and light"ish" colored one going to the solenoid; and a green one with a female spade conection staring at me unconnected.My manuals don't give color codes and this looks like a factory done job. Thanks

Thu May 23, 2002 10:20 am

auto choke seems plausible, do you have an idea what area and/or what side this conection may be found?

Thu May 23, 2002 11:44 am

Something doesn't sound right to me... Does all your stuff work, IE both red lights in the speedo? As far as I can tell you... You should have the wires from your Voltage regualtor running over to the gen; big red (D+) small green (and possibly a small black wire as well (DF) small brown (ground)
on the other side of the regulator you should have the big red(s) and the small green which goes to the light in the dash
Then on the longer portion of the harness going over to the coil, a black POSITIVE SIDE(+ hot to the coil with key turned on) And a blueish green or green with red dashes or stripe should go to the Oil sending unit
The condenser should have a green wire going to the negative side of the coil
Two other wires should (COULD) be connected to the POSITIVE side of the coil a black for the reverse lights (If they are hooked up) and one(could be any color here???) that goes to the electromagnetic fuel shutoff on the left side of the carb and to the electric choke one the right side of the carb...
The mystery wire could be the oil sender as it should NOT be red unless someone spliced into it. There may be a wire considederd MYSTERY if it goes to the DIAGNOSTIC plug in (IF SO EQUIPED) that is around the time VW started putting those things on, and it may have gone to the negative side of the coil as a pickup for their diagnostic machines tachometer.
I feel I have gottn most of this correct from memory, however maybe someone with a clean original 71 can look in their compartment and confirm or correct if I have made and error... Hope this will help, good luck

Fri May 24, 2002 6:50 am

Thank you O wise and noble one, I know for sure the red wire is going to the oil plug, but it could have been spliced as you suggested; the rest of the color/connection set-up I'm going to check tonight.Both lights do go on ( on the speedo) but there is damage to the right side front and back turn signals, and the wires are not connected to the rear signal.I'm tracing stuff this weekend. Thanks again.Have a fun and safe weekend.Cheers.

Fri May 24, 2002 8:05 am

Gee thanks but lets wait ans see if you get it all straightend out! By the way i think it's on www.type2.com in the 'Library' that ther is or at least limks to some color code wire diagrams.... happy hunting...

Sat May 25, 2002 11:43 pm

71 wiring diagrams are at vintagebus.com ....
good luck!

Yesterday 11:39 am

Ive got the same question.. large guage Green.. looks factorty.
No idea what it is.

Connected to fusebox right beside the Green that goes to the E Flasher switch.
Runs from fusebox to the main loom going rearwards.

Yesterday 12:32 pm

Maybe for the fridge, or aux battery charge relay?

Yesterday 2:36 pm

Found this.. might be. Mine is Automatic. Not sure how to check it.
Other than a test drive … lol
Rather not tey that.

Yesterday 4:35 pm

Found it … E17 ….

Now I have to figure out what the Kickdown Wire is. :lol:

Yesterday 6:04 pm

Is your bus an automatic transmission?

Today 9:21 am

Yes .. so I thought it might be Kickdown Switch mentioned on the fuse blx cheatsheet . But this looks like a match. Kickdown still tbd.