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Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2009 Posts: 121 'Bolter | | 'Bolter Joined: Jan 2009 Posts: 121 | | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | appears to be a pressure or vacuum pump  what does the line thru the firewall go to? Bill | | | | | Joined: Sep 2008 Posts: 226 Shop Shark | | Shop Shark Joined: Sep 2008 Posts: 226 | maybe it primes for the vac. motor before you start up the motor? You really need to find where the line goes on the inside of the cab and let us know. It is obvious that you can only pump it when not driving
Poets Seat AutoAppraisals, Parts, ServicePast: General Motor's Master Technician Member: Northeast Chevy/GMC Truck ClubPhone Number: 413.774.5856 Collector of: 1951 Army Chevy Burb barn door,53 GMC COE,two 1934 Chevy Truck,1935 Chevy Army Truck.1950 Gmc Suburban clamshell these are just my chevy/gmc trucks.
| | | | | Joined: Jan 2009 Posts: 121 'Bolter | | 'Bolter Joined: Jan 2009 Posts: 121 | Ok guys so i finally went out to trace the line going thru the fire wall and found its only about 8 images long and leads to nothing. . Its actually the same size/style tube as whats on the engine primer pump mounted in the dash. I have never seen one like it before so im guessing i can dump it and do without? Anyone ever seen one like it before?? | | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 |
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Upper engine/cylinder lubricator?
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