- Mon Nov 09, 2015 2:57 pm
#52169
Our pair of bikes are really not old enough to have any serious corrosion.
With an overyly critical eye, the wire used seems good, the spade crimps made well too but the spade connectors are perhaps a little weak and may need squeezing with the pliers if they're been on and off a few times. The wiring is a little short in places, not enough stretch and not well routed. The block connectors are too bulky but they work. The black tape wrap they used is not very sticky, overwrap it with best black sticky back plastic PVC insulating tape (3M 'Scotch' or Lasocvic for choice). The fuses inserted in Chenai were a bit mottled looking, corroded aluminium i.e. blows lower than it should. Cheap as chips to replace but beware there are two similar shapes used on cars, different size fitting; I seem to have 15A, 15A and 20A (not all three at 20A).
Pulling connectors on and off does weaken them but does chip off the oxide layer and cleans them up; if in doubt put the ohmmeter on the circuit. Cheap relays = poor contact points but they make billions of these things for cars so the best are pretty cheap.
Some waterproofing sprays (Silicone Oil) are good insulators, not ideal for connections; try Servisol 'Contact Cleaner' (note their similar 'Switch Cleaner' has oil in it, possibly a better waterproofing).
I'm about to fit twin Bosche fanfare klaxons, the type used on some emergency vehicles. I had three of them on the AMG, they look like ordinary black lump horns only they're LOUD!
They draw a bit more juice but we've got a 3-phase alternator that can supply everything we never wanted, and some models come with a pair of horns in the first place; should not need an extra relay, the wiring diameter looks good for 25A (there's always a good safety margin), may need to upgrade the fuse to 30A. I got a lucky bag full of good ones.
