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Old 09-22-2019, 10:54 AM   #5
Charlie ny
Senior Member
 
Join Date: May 2010
Posts: 2,328
Default Re: What's the hiss, hiss, history of this

Yep a garden variety dual action pump. Be wary of the off shore versions ( in my experience) rubber valves not so good. 337 Linc and big Ford trucks attach these
pumps with 3/8 dia fasteners, Ford and Merc use 5/16 fasteners. There are various versions with different inlet and outlet threads and locations , ditto for the vacuum
portion. Parts get so easily mixed.

Charlie ny
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