MartinN Posted June 15, 2013 Share Posted June 15, 2013 One of the fuses on my mw keeps blowing I believe due to a short in that circuit. Is there a quick way to find the short. Quote Link to comment Share on other sites More sharing options...
Tony B Posted June 15, 2013 Share Posted June 15, 2013 No. You'll have to check it all unfortunatley. However! Before starting on the hunt, what does the fuse protect and what ampage was it? Quote Link to comment Share on other sites More sharing options...
MartinN Posted June 15, 2013 Author Share Posted June 15, 2013 Fuse runs headlights. Think the fuse is 25. Quote Link to comment Share on other sites More sharing options...
Tony B Posted June 15, 2013 Share Posted June 15, 2013 So Watage of headlights (Which has gone completly out of mind!) divided by 12 gives you the amps the circuit takes. Check all switches including dip switch first, they are the most likley to be the seat of the problem. Then any place where the wire goes through a block, some of the old Lucas screw tops connectors are well beyong used by date. Funny enough I've been dealing with some on a 1939 Wolseley today. If any of the wires appear to have brittle or brocken insulation or burning at the ends, replace the whole wire. Quote Link to comment Share on other sites More sharing options...
onthecorner Posted June 15, 2013 Share Posted June 15, 2013 Remove the fuse and connect a buzzer or test lamp on a long lead (so you can see when it lights) between the the two fuse terminals. Switch on the circuit that is blowing the fuse and wiggle the wiring and connections until your buzzer buzzes. That will be the location of the short. Quote Link to comment Share on other sites More sharing options...
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