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70's Chevy steering pump for 75 Eldorado?

Started by Steve Lomas, December 30, 2023, 10:49:45 AM

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Steve Lomas


I replaced my power steering pump about 20k miles ago and it's failing- making noise and vibration.

Probably because I bent the pulley taking it off last time, that and I had the belt over tight to stop the AC squealing.

So I'd like to replace the pulley also this time but I'm not seeing the whole assembly (for a reasonable price.)

I do see a lot of Chevy/ Saginaw style full assemblies like this

https://www.ebay.com/itm/235229266815?hash=item36c4c1c37f:g:3x8AAOSwsL1lFMlW&amdata=enc%3AAQAIAAABABY0YA%2BdChfSu676D5sEhCbqT3P%2Bghrj77%2Bjo%2FkuzWfaLOHhrG9mXhyKWu24AC3bq%2FmPER4%2FMBfTydYtXtlz9al8YmGh37ZnSr7XpSYeBtn0II2lTVJ6CjlefZkIqLh7s6VarB8TuZvmhRp7tg2q0SfoHb87Fj3OeOW4FYf0uB3%2BKh8c9j5JWWOxPxQsBJamp01RtkA5iVXID49%2FV35uUMpHHk3qzEB%2BjOpEK1kaN%2BcJoM%2Fg3W%2Bceh1sz%2BmTh%2Bxj2au9vnuGB%2FT5iQ7RE49cwsw1%2Flm3wQ02uE6UyfMZGNzoJbCGrBu%2F%2BIit2yCBR8k3VJzJt9LsRq1PNdqmVNzPNYo%3D%7Ctkp%3ABk9SR4iuh7KXYw

(Chrome gets you home  :)  )

The bolt pattern looks the same but not sure if it will align the belt properly, or if it provides the same pressure etc.

Any thoughts appreciated.

Steve

Cape Cod Fleetwood

You're lucky you got 20K. All the replacement parts are junk. Just go to RockAuto or Summit Racing and get the correct
one for your car. Maybe get 2, they're not expensive. You'll need another one again.
There are 2 kinds of cars in the world, Cadillac and everything else....

The Present -1970 Fleetwood Brougham

The Past -
1996 Deville Concours
1987 Sedan De Ville "Commonwealth Edition"
1981 Coupe De Ville (8-6-4)
1976 Sedan De Ville
1975 Sedan De Ville

The Daily Driver and work slave -
2008 GMC Acadia SLT *options/all

Steve Lomas

Thanks, yeh, considering the wobbly pulley it hung in a while.

I see Rock Auto sells a pulley separately so I'll probably do that.




The Tassie Devil(le)

One matter to remember is that anything that has to contain fluids, or maintain friction
should never be chromed.

With the Chroming of the oil reservoir housing, the seal will have a hard time maintaining
fluid within the pump, and the plating of the "V" of the pulley will result in slippage of
the belt under stress.

Plus, Chromed pieces that contain fluids maintain heat as against painted parts.
One reason not to chrome Sumps.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Past Cars of significance - to me
1935 Ford 3 Window Coupe
1936 Ford 5 Window Coupe
1937 Chevrolet Sports Coupe
1955 Chevrolet Convertible
1959 Ford Fairlane Ranch Wagon
1960 Cadillac CDV
1972 Cadillac Eldorado Coupe