Washer pump issue

[dalekerr]

I recently replaced my wore out washer pump with an after market replacement it worked fine for a few days, then it sprayed whenever the wipers were turned on. I unplugged the wires to it, made no difference, still sprayed when wipers were running.
. So I sent the pump back an purchased an NOS unit, installed same issue 1967 with 68 style pump. What am I doing wrong?

Thanks Dale Kerr

[dalekerr]

Please, I need some help. How do you bolt the new style washer pump to the 67 wiper motor? The units came with no instructions and the holes don’t line up. There must be trick to make this pump work on the 67, since all the suppliers carry this unit for 67 models. I replaced two of these on 68 models with no problems.

[william]

67s used a unique wiper motor that does not interchange with 68-69.

[Petes L48]

Is your old pump repairable?  I found that the bellows kit from a 67 Vette is the same for 67 Camaro.  I also found a spare kit on eBay, see picture.  Someone also told me/claimed they were able to put the newer 68 up pump on a 67 wiper assembly, by drilling a new mount hole for one of the three(?) screws.  No idea if true. 

https://www.paragoncorvette.com/search.aspx?Year=1967&SearchTerm=washer+pump

http://gmpartswiki.com/getpage?pageid=78053

[dalekerr]

The old pump will not engage, I’m sure it is an electrical problem. Maybe I can play with or take it to a local alternator shop and have them fix it.

Thanks for the help.