mike623

It's been a while since I have been on here. I had a baby and quit playing with the cars for a little while. I have an issue with my 1970 cutlass supreme convertible top motor. It started cutting off sometimes and would have to let it rest for a few seconds then it would kick back on. Well as time has gone by now I cant the top back up. First I tried making sure it was full of fluid, that didn't help. Then I tried running a wire from the battery to the pump and it did the same thing "cut off after a few seconds then would move and would keep repeating the cycle of cutting off letting it rest". So now I have the pump out of the car and took it apart. There is some nasty stuff on the electrical side. What is the best way to clean this up? What all should I do to the pump? I don't want to spend the money on a new pump, I also believe that this pump is the original AC Delco pump. Any help from the guru's on here would be greatly appreciated.

Thanks, Mike

Rickman48

I think I'd try 'brake clean', if it's all electrical, to clean it.
Try not to breath for a minute, 'til it all settles down, and wear safety glasses!

mike623

How do clean the contacts or brushes in the pump? Anyone have any pictures of the process?

72w442

Just had problems with my top motor but my issue was hydralic oil leaking into the actual electric motor of the pump, the motor was running very slow and would actually emit small amounts of smoke when operating. I disassembled the whole pump and cleaned the brushes and armature as well as the whole pump body, then replaced all of the o rings incuding the ones for the lines. The pump now looks new and operates perfectly with no leaks. Just thought I would share this, cost me about $1.50 in parts. At the same time I studied the entire system. Oh and by the way a new pump is about $220 and does not look exaclty like your original pump.

costpenn

Hello sorry for reviving this old thread, but can anyone tell me how to kep the brushes in the holder when you reassemble the unit? It does not have the hole like an alternator does to do the paper clip bit. Is there anywhere an exploded view of the conv. top motor pump assy?

mike623

I have to use both hands and a screw driver in my mouth :-) It works though.

72w442

I think this link will help you quite a bit. I held mine with small screwdrivers,

http://autobodystore.com/forum/showt...ly-and-rebuild

Good luck

stlbluesbrother

That's a cool link. Thanks for sharing.

costpenn

Thank you, thank you, THANK YOU!!!!!!! This is exactly what I was looking for.