Re: Intermittent wipers?

by pila on Sat Apr 16, 2011 5:29 pm

If I really wanted a pulse wiper, I think I would just get an aftermarket type, and figure a way to interface it to the standard system. Could likely be done, with a bit of imagination.
But for a summer, rarely driven in rain-type car, I likely wont bother with that. Too many projects already!

But.....my Elco will be a daily driver, so I'll have think about it again later.
I thought I would get it near finished this year, but too many expensive parts to get yet. Crying or Very sad

by texan01 on Sat Apr 16, 2011 9:21 pm

I've got the '77 Fisher Body manual that has the diagnosis and wiring in there, I'll get them scanned in tomorrow

by pila on Sun Apr 17, 2011 10:17 pm

That manual has a lot of trouble shooting info in it too.

by texan01 on Wed Apr 20, 2011 6:48 pm

http://www.rowand.net/Shop/Tech/DelayWipers.htm

This is a neat page that has the shop manual already scanned in plus lots of information on how/why it works.

by texan01 on Sun Apr 24, 2011 7:30 pm

Ok I just got done swapping mine over to pulse wipers.

Parts I used; 1977 pulse wiper switch from a 77 Monte Carlo. (apparently the switches now are made of unobtanium)
a 1977 Pulse wiper motor assembly from a convient 1977 Coupe De Ville. (it also had a factory Am/FM/CB radio)
Pulse harness from the Monte Carlo, included with the switch.

Total cost of parts was $20.

Spent 20 minutes swapping the switch out and running the additional harness. One pigtail plugs into the Acc spade terminal on the fuse box, runs to the switch, then two wires run through the firewall over to an additional terminal on the motor.

I spent another 15 minutes swapping the motors out. I initally left the D-body crank arm on the motor but found it didn't sweep the wipers far enough, nor did it move them at an acceptable speed. swapped the original crank arm on after re-greasing the pivot ball, and all my stops are back to OE spec. I shot of tuner cleaner into the switch to lube and clean the contacts and it hits on all the speeds and delay.

I did have to rebuild the washer pump as the valves had dried out. I had rebuilt the non-pulse washer pump shortly after I got the car so I just switched them around.

The hardest part about this whole mod was locating the switch at least in the DFW area. I've hardly ever see many 73-77 cars in the yards even when they were 15-20 years old.

The motor can come off any 74-79 car/truck