Matt Mason Posted April 15, 2006 Share Posted April 15, 2006 Having fitted a fuse block instead of joining wires (alternator convert) , What size fuse would you put in the charging circuit ?I put a 30 amp in and it did'nt blow with lights on etc ... will this be okAny ideas most welcome.....................Matt Link to comment Share on other sites More sharing options...
Richard B Posted April 15, 2006 Share Posted April 15, 2006 I would not put any fuse in the charging circuit, if the fuse fails for some reason whilst the engine is running the alternator would blow as it has nowhere to dump the energy. I would fit a new heavy cable from the alternator to the starter solenoid, the gauge depending on what alternator you have 30amp, 45amp, 55amp.Just my two penn'th. Link to comment Share on other sites More sharing options...
Smallfry Posted April 15, 2006 Share Posted April 15, 2006 Agree with Richard B. There must not be any fuse in the main charge cables. Your alternator will be fried if it blows ! Link to comment Share on other sites More sharing options...
Matt Mason Posted April 15, 2006 Author Share Posted April 15, 2006 OH me and my bright ideas....i will undo that then....Thanks for the warnings ......electrics not my thing really.....Matt... Link to comment Share on other sites More sharing options...
Smallfry Posted April 16, 2006 Share Posted April 16, 2006 Well.......You live and learn, but its better NOT to learn the hard way........if you can avoid it ! Link to comment Share on other sites More sharing options...
Matt Mason Posted April 16, 2006 Author Share Posted April 16, 2006 Done as sugested ....i now have a heavy duty lead now running staight to the solenoid...but have kept the fuse block as it is a handy place to feed other things like the radio etc............Matt........... Link to comment Share on other sites More sharing options...
Richard B Posted April 20, 2006 Share Posted April 20, 2006 Well done. The trouble with Heralds/Spitfires is there is not enough fuses as Standard. Years ago I burnt out my wiring loom on my Spitfire Mk IV. This was due to a short in the overdrive circuit which was not fused. I could have lost the car, if I had'nt disconnected the battery in double-quick time. Link to comment Share on other sites More sharing options...
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