Windshield washer, Pontiac, 1985, Stationwagon, lining up two halves

Look at the plastic four lobe cam, one of the lobes will have a hole in it, there is also a hole in the steel body of the pump assembly, place a 1/8" drill bit thru both holes to lock everything in place while you bolt the pump down to the wiper motor. Remove the drill bit when you're done.

Thanks, I'll 'give it a shot' in the morning.

Did as you instructed. Worked like a charm. Thanks!

Okay, it went back together and the wipers work but an annoying problem that wasn't there before came up. In intermitant mode the wipers don't pause at the bottom of the windshield now, they pause half way across. Could I have still missed the pinion getting put in the cam anyway? Or is this another issue?

Was the wiper motor in the park position when you re-installed the pump? Did you have the crank arm off of the drive end of the motor and re-installed 180* off?

Yes. I took the front section (pump, circuit board) off with the wiper motor in the park position and didn't turn on the wipers until I reinstalled it again. No. I didn't take the crank arm off. Is it possible that the pinion is not meshed in the cam in the right spot? The wipers work fine in all modes except intermitent. Intermitent works, but the wipers pause in the wrong place on the winshield. There is a cam activated electrical switch. But I don't know what the switch is for. It could have gotten bent? It's a long piece of thin metal that flexes by a lobe point on the cam.