Thanks for posting that...
I've been thinking about a wiper delay mod, since I just repacked the grease in my 86TD wiper motor and they are much faster now. :-)
I didn't consider the change of the capacitor, but that makes good sense and clearly it works for that guy.
If anyone wants a relay 99, (programable) pm me I have a few.
Yeah, I have a solder gun and don't know if I can get in to do it, but I have a couple relays and will give it a shot. I like the idea
The 99 relay is a nice easy mod. But does anybody know what can be hacked on the circuit to set the rear wipe to a longer interval, as the standard seven seconds is a bit too often.
Generally, an increase of resistor value in the R-C delay section will make a longer interval, a variable resistor will allow for adjustment. In the OP, a larger capacitor was also used to increase the available range.