RogerH Posted January 12 Report Share Posted January 12 About two years ago I bought a switch for my wiper modification. When I got it home it was useless. The two positions had melted into a mish mash. Not Good. However it didn't affect what I wanted to do. A month or so later I bumped into the man who knows these parts and said that box of switches was being sent back as they were no good. Today I have been making switches that do things they shouldn't. When I finished the first one it was horrible to operate - just like the ones above. OK, take it all apart,. scratch head. After a couple of minutes fiddling I found the problem. The BHA4578 switch has two flat plates held down by two springs. The toggle/pull action moves these plates 'over centre' to give the switching effect. But, if the bottom of the plate is in the wrong position it turns into a mish mash. So fault found and problem solved. I could fix all the above switches but sadly they were all sent away for the bin. Roger Quote Link to post Share on other sites
John Bracher Posted February 21 Report Share Posted February 21 I watched Elin Yakov (Rusty Beauties) do a switch repair. From memory, rather like our drum backplate's handbrake linkage issue, a groove had worn in the switch component, causing it to operate badly/lopsided. Addressing the groove cleared the problem! Another one (from someone else) on a 'modern' Mercedes with a badly performing/broken cup holder. A metal pin needed pushing back into place. 'Normal function' restored immediately, avoiding (probably) a new cup holder assembly! So many things can be recovered if you have :- a) time and b) the will Quote Link to post Share on other sites
Hamish Posted February 21 Report Share Posted February 21 YouTube is your friend for many repair jobs. i find especially useful when there are hidden fasteners or fixings. Quote Link to post Share on other sites
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