Re: GT 550 blowing fuses
Posted: Fri Apr 29, 2011 6:45 am
Fully charge the battery. Will make test voltages easier to interpret.
Starter wouldn't spin too energetically if the battery voltage is only 12.05V. Did you use the starter?
Your multimeter might be reading low. As a test you could check the voltage of your car's battery & with the car running.
How long did it take to blow the fuse? Could be time related.
Did you have the lights on?
Wiring diagrams on SmokeRiders website: http://smokeriders.com/Technical/wiring ... grams.html" onclick="window.open(this.href);return false;
Look at red wires from battery & rectifier:
1) for GT750 fuse is shown to be downstream of battery & rectifier
2) for GT380 & GT550 fuse is shown to be downstream of battery but alternator is unfused
I have GT380, GT550 & GT750 owners manuals. Wiring diagrams in these manuals show the fuse to be downstream of the battery but the alternator is unfused
This adds an additional complication that you can't completely trust the wiring diagram.
Check the resistances I mentioned with:
1) battery disconnected & fuse removed
2) battery disconnected
3) battery disconnected & rectifier disconnected
Check voltages running with and without lights.
Sorry if I ask for too many tests. Doing remote diagnostics like this makes it difficult to figure out exactly what to ask for.
Maybe someone else has some testing ideas that will make diagnostics a little less tedious.
Starter wouldn't spin too energetically if the battery voltage is only 12.05V. Did you use the starter?
Your multimeter might be reading low. As a test you could check the voltage of your car's battery & with the car running.
How long did it take to blow the fuse? Could be time related.
Did you have the lights on?
Wiring diagrams on SmokeRiders website: http://smokeriders.com/Technical/wiring ... grams.html" onclick="window.open(this.href);return false;
Look at red wires from battery & rectifier:
1) for GT750 fuse is shown to be downstream of battery & rectifier
2) for GT380 & GT550 fuse is shown to be downstream of battery but alternator is unfused
I have GT380, GT550 & GT750 owners manuals. Wiring diagrams in these manuals show the fuse to be downstream of the battery but the alternator is unfused
This adds an additional complication that you can't completely trust the wiring diagram.
Check the resistances I mentioned with:
1) battery disconnected & fuse removed
2) battery disconnected
3) battery disconnected & rectifier disconnected
Check voltages running with and without lights.
Sorry if I ask for too many tests. Doing remote diagnostics like this makes it difficult to figure out exactly what to ask for.
Maybe someone else has some testing ideas that will make diagnostics a little less tedious.