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1982 911sc Intermittent Wiper Issue
My intermittent wiper switch is working but the wipers only move at one speed no matter how much or little the wiper switch is turned. Just replaced the switch (potentiometer) and still the same thing, only one speed. Any suggestions?
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12-18-2011, 01:11 PM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,431
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yup, one speed. the potentiometer just increases or decreases the interval.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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12-18-2011, 01:31 PM
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Sorry, let me clarify. There are no changes in the interval.
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12-18-2011, 01:34 PM
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Does your wiper park properly when switched off? If not, it could be dirty contacts or a relay problem. Also, do note that the intermittent function should only run when the wiper switch (stalk) is switched to the off position.
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12-20-2011, 06:56 PM
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Registered
Join Date: Sep 2001
Location: Columbus, OH
Posts: 1,011
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+1. Wipers must be turned off (park) before the intermittant switch works. If your wipers don't park themselves when you turn them off, you need to clean the contact on the switch in the stalk. The park function must work for the intermittant function to work.
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Doug 79 SC Targa w/ ITBs, 2004 Cayenne Turbo |
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12-21-2011, 06:33 AM
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Yes, the wipers park correctly and i have the wipers off when I turn the intermittent switch on. There is no interval change no matter where on the intermittent dial I turn it. I think I am going to see if replacing the relay works.
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12-21-2011, 08:14 AM
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'82 SC TL
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Did they ever work? Reason I ask is to make sure the appropriate wires are connected to the appropriate locations on potentiometer, I too will need to replace mine soon & would love a scematic for wire connection location
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76'S 1st Porsche white/can/can early rebuild (boo)  '84 Carrera cpe. all blk & stock 340k never a let down (might have been the best1)  '87 Carrera cpe white/blue short flirt '89 Anniv. sil/linen very pretty miss her  '88 928S4 5spd. blu/blu cmplt.SS exh.chipped lowered 
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12-21-2011, 08:39 AM
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Registered User
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The wiring for the potentiometer is as follows: Black wire to post 15B on the pot, Red/Yel wire to post 15A on the pot, & Red wire to post 15 on the pot.
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12-21-2011, 06:11 PM
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Does anyone know the potentiometer specs ..50k???
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09-11-2015, 07:57 PM
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Registered
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Hi There:
My 1978 911sc intermittent wipers has exactly the same symptoms that you described here. Wipers park, and run at 3 speeds using the stalk control. On intermittent operation, the wipers turn on and run, but there is no intermittent time delay at all regardless of the setting on the knob. I just wondered, did you solve this and if so what was the solution? Thanks very much Karl (78 911sc) |
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10-21-2018, 05:09 AM
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Registered
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Potentiometer Specs
Quote:
Thanks |
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08-09-2020, 09:47 AM
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Emma
