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81 SC wipers won't park
Posted: Wed Sep 05, 2018 3:25 pm
by GARY RICH
I took the wiper motor off to check if the switch on the gearbox was working and found it was ok. With the wipers running I can hear the intermittent relay pulling in and dropping out, tried intermittent wipers alone and they don't work. I suspect the intermittent wiper relay is faulty, has anyone else experienced the same or is there anything else i can check before I buy a new relay.
Cheers Gary
Re: 81 SC wipers won't park
Posted: Wed Sep 05, 2018 6:09 pm
by mean_in_green
If you’ve not taken the wiper stalk off you might be surprised how much dirt has accumulated inside the contact housing. Easy to clean out, and also look closely at the contacts in there as they might need bending a little.
Re: 81 SC wipers won't park
Posted: Thu Sep 06, 2018 7:55 am
by GARY RICH
Thanks Simon I will check that out next week when I get a bit more time.
Re: 81 SC wipers won't park
Posted: Thu Sep 06, 2018 9:41 am
by DustyM
Almost certainly the contact in the wiper stalk.
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Re: 81 SC wipers won't park
Posted: Mon Sep 10, 2018 1:44 pm
by GARY RICH
Tested across switch 110 ohms, stripped down steering column and cleaned inside of wiper switch, 0.4 ohms, all working again.
Thanks lads
Re: 81 SC wipers won't park
Posted: Mon Sep 10, 2018 4:03 pm
by 911hillclimber
What did you use to clean the switch please?
Re: 81 SC wipers won't park
Posted: Tue Sep 18, 2018 3:41 pm
by GARY RICH
Sorry its taken so long to get back to you but when i stripped the switch out a load of crap dropped out of it. I blew what else was in there and it all worked, so I ordered some electrical contact cleaner off ebay and washed it out with that. A friend who has a few classic and vintage cars said he uses lighter fuel as it evaporates quickly and leaves no residue.