70 Turn Signal Switch

[Chazbot]

Hey all!

Thought that one of you might have some experience with these.

I've got a 70 Westy and have an issue with the turn signals not canceling. Its a new bus for me so I pulled the switch off the column. What I found was that the canceling cam on the wheel is about 4mm short of the contacts on the switch. So the switch works correctly but the cam on the wheel does not reach. I don't think the wheel has been changed but the switch appears relatively new. It does appear to be the correct one for the bus of that year but that is where I began to question myself.

Could it be the wrong year switch?

Could there be a cam that reaches?

Any thoughts would be appreciated.

Regards,
Charles

[kreemoweet]

So is the 4mm gap vertical or horizontal? If vertical: 1) make sure wheel is
fully seated, 2) move switch/housing up on steering column, 3) install
spacers under cancelling ring on steering wheel to make it sit lower, 4) make
sure switch is not installed upside down.
If horizontal: there are several versions of switch housing and switch
with different horizontal dimensions. I personally had the same problem
and solved it by installing spacers between the switch and switch housing
to make the cancelling arms on switch sit closer to the axis of the steering
wheel.
_________________
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'68 bug: seized by the authorities
'71 kombi: not yet seized by the authorities

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[Chazbot]

Yes, it is horizontal. And that is with the switch in the off position. I measured the distance from the switch housing to the column and did the same for the cam. Came up with 4mm. Apparently not enough for the cam to touch the canceling tabs when the switch is operated.

I don't see where I can space the switch inside the switch housing to get it closer though. Looks like it is a pressed fit in there. But thanks for the thoughts. I'll be looking at it some more. I may try adding something to the cam perhaps......?

[kreemoweet]

With the switch in the off position, there should be no contact between the
cancelling tab on the wheel and the cancelling arms on the switch. When the
switch is turned on, one of the cancelling arms gets pushed closer to the
steering shaft, so that it is in the path of travel of the cancelling tab on the
wheel.

The switch is mounted in the housing by two machine screws (M3 or M4 as
I recall), and the spacers I mentioned would go inside the housing, between
the housing and the switch, and would consist of a pair of short lengths of
tubing or a stack of washers or whatever.

Alternatively, you could try and find a different switch housing, that would
work with your switch. I am looking at a couple of switch housings from my
stash, which are pretty much identical except for the length of the switch
mounting bosses inside the housings. Part #211-953-515E has a short
mounting boss whereas part #211-953-515D has a longer (by about 6 mm) mounting boss, and so would put the switch closer to the wheel. The
part numbers are on the inside end of the housing and difficult to see
with the switch mounted.
_________________
'67 bug: seized by the authorities
'68 bug: seized by the authorities
'71 kombi: not yet seized by the authorities

Stop dead photo links! Post your photos to The Samba Gallery!