Brian Eldred Posted March 8, 2019 Report Share Posted March 8, 2019 I took my 4a out for the first time this year yesterday to get a slow puncture sorted. Of course it was raining, but the wipers worked OK (or as well as usual) on the way to the garage. Then when I got home I switched them off, but they kept going until I turned the ignition off. Tried again this morning and as soon as I turned the ignition on, they attempted to spring back into action. I had to pull the wires off the motor. Then I remembered that this happened once last year, but sorted itself without me doing anything. Any ideas anyone? Quote Link to post Share on other sites
Lebro Posted March 8, 2019 Report Share Posted March 8, 2019 Dodgy switch, or (More likely) the self park mechanism has broken in some way, & is not switching off. Bob. Quote Link to post Share on other sites
RogerH Posted March 8, 2019 Report Share Posted March 8, 2019 Hi Brian, welcome to the forum. The self park is functioned by a red wire on the disc shaped cap on the motor. This goes to earth. The motor has a permanent live feeding it (through the ignition switch). The switch on the dashboard (two speed) switch each earth wire from the motor to ground. So - either the internal earth track inside the cup on the motor is damage and causing a permanent earth (it should have a gap on a circular track Or the two earth wires form the motor are chaffing on the bodywork. Check the wiring first and if no luck take the cup off the motor and see what is going on inside. To remove the cup you may need to loosen the motor. Another thought - it could be the switch itself - dying. Roger Quote Link to post Share on other sites
Brian Eldred Posted March 8, 2019 Author Report Share Posted March 8, 2019 Thanks both, I suspected the self park mech but wasn't sure how the wiring works. I'll check it out later when the guys have finished putting a new roof on my garage... Brian Quote Link to post Share on other sites
RogerH Posted March 8, 2019 Report Share Posted March 8, 2019 Hi Brian, where abouts are you based? Roger Quote Link to post Share on other sites
Brian Eldred Posted March 8, 2019 Author Report Share Posted March 8, 2019 Hi Roger, I'm near Wetherby. I've been messing about with my profile, didn't mean to put that stonking great picture as my signature! I do like the pic though, that's an original TR4A advertisement. Quote Link to post Share on other sites
Brian Eldred Posted March 8, 2019 Author Report Share Posted March 8, 2019 Hi Roger, I'm near Wetherby. I've been messing about with my profile, didn't mean to put that stonking great picture as my signature! I do like the pic though, that's an original TR4A advertisement. That's better! Quote Link to post Share on other sites
RobG Posted March 8, 2019 Report Share Posted March 8, 2019 (edited) Brian, Great picture. My signature pictures come out too big as well. Edit ok sussed it, edit image. Simples. RobG Edited March 8, 2019 by RobG Quote Link to post Share on other sites
AlanT Posted March 8, 2019 Report Share Posted March 8, 2019 I've repaired hundreds of parkers. There are loads of ways a short can develop in these. Normally I just drill them apart and rebuild. Then the red-wire can short to case anywhere along it's length. Diagnosing this may be tricky but most things are easily fixed. Ask me if you need any parts. Quote Link to post Share on other sites
Brian Eldred Posted March 13, 2019 Author Report Share Posted March 13, 2019 The problem seems to have sorted itself for now. No shorts to earth evident. I'll wait until if/when it reoccurs! I try not to take her out in the rain though.... Quote Link to post Share on other sites
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