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914World.com _ 914World Garage _ DEAD WIPER MOTOR
Posted by: CHAZT54 May 20 2010, 11:32 AM
I've got a '74 2.0 and am now getting it ready for fist show of the season. The windshieled wipers worked fine last fall when I parked it but don't now for some reason. I did restore the dash & instruments over the winter including cleaning up the heat/defrost controls, installing a push-button start switch (key switch was unreliable in crank position), and installed a MOMO wheel w/hub.
The connections at the wiper motor, fuse block, and bottom of stalk switch are all solid.
I get no power at the wiper motor connection with key on and wiper switch on.
Could this be a dead spot in the wiper motor OR poor contacts in the stalk switch?
I dread pulling those stalk switches from the column.
Hoping for something simple.
OTHER IDEAS? 
CHARLIE
Posted by: detoxcowboy May 20 2010, 11:40 AM
You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect..
Posted by: CHAZT54 May 20 2010, 12:23 PM
You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect..
RELAY? I didn't know there was a relay involved with the wipers. Where do I find this puppy?
Posted by: eitnurg May 20 2010, 12:35 PM
Pulling the stalk switch is no drama at all. Only confusing part is (ISTR) that wiring colours within the switch differ from the corresponding connections in the multi-pin plug (& which the wiring diagram refers to).
It may be that wiper spindles have siezed from non-use, and switching them on has melted the plastic contact holders in the stalk switch so that the contacts no longer contact. Means "new switch".
Don't ask me how I know.
Posted by: detoxcowboy May 20 2010, 12:47 PM
You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect..
RELAY? I didn't know there was a relay involved with the wipers. Where do I find this puppy?
not all car have this but I have a 74 it does, you have a 74 does it?
Posted by: CHAZT54 May 20 2010, 04:22 PM
You will dread even more changing the wiper motor, been there done that .. best check everything else first.. no power at the wiper motor? then that is a better sigh than dead wiper motor.. keep tracin it back to the switch/ fuse block.. relay ect..
RELAY? I didn't know there was a relay involved with the wipers. Where do I find this puppy?
not all car have this but I have a 74 it does, you have a 74 does it?
That's a good question. I never looked for it. I will have to check when I get home tonight.
Thanks for enlightening me.
Posted by: SLITS May 20 2010, 05:18 PM
That is the "interval" wiper relay .... I'm not really sure but I think you push up on the stalk to make the wipers cycle once with that option.
Posted by: detoxcowboy May 20 2010, 06:58 PM
That is the "interval" wiper relay .... I'm not really sure but I think you push up on the stalk to make the wipers cycle once with that option.
pull down actually then they work (wipe once) intermitently about every 8 seconds (guessing) or so..
Posted by: brp986s May 20 2010, 09:47 PM
There is a wiper relay. It's on top of the fuse plate, and if I recall, it's the standard round one that controls the headlight motors and etc., so you can swap for a quick test.
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