wiper motor popping fuses

[dcasalena]

Background:
bought the '72 in January, all electrical was a mess, front and tail lights, wipers, heater fan, nothing worked. But it started and ran.
So just finished install a complete wire harness from AAW. Everything works again except 10Amp blade fuse pops when the wipers are turned on. Wipers move about 1/2 way up the windshield before it pops. Don't know how long it's been since they worked before it was mine.
Can I put in a 15Amp fuse, WD40 everything and not put the truck, me, and precious passengers at risk?

[VetteVet]

The maximum rated amperage for an 18 gauge AWG wire is 16. The yellow wire that feeds the wiper motor is an 18 gauge so you could use a 15 amp fuse. The wiper motor is probably drawing too much load for the 10 amp fuse because it is binding or the blade arms are binding.

If there was a short to ground the fuse would most likely blow before any movement of the arms. If the 15 amp fuse blows after you lubricate everything then you should not exceed the 15 amp fuse, and fi the wipers work try going back to the rated fuse.

[dcasalena]

Okay, thanks for the info. I suspect the lube and a few rotations will help reduce the load.
Cheers!

[cableguy0]

Your best bet is to pull the cowl off and check the linkage. It can and will bind. It especially does it when they wipers arent moved for a long time. I agree the motor isnt shorted or the fuse would blow as soon as you turned the switch on.