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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: Feb 2015 Posts: 22 'Bolter | | 'Bolter Joined: Feb 2015 Posts: 22 | I know that's not funny anymore..... I have a 59 Apache truck with a 235 - 6 cyl. Trying to get wipers working. There is one line from firewall to carb. another line from fire wall down near fuel pump. I know the fuel pump provides vacuum to the wipers. Now there is a 6" long hose from bottom of pump around to what looks like one of the bolts holding pump to block...
Where should the vacuum line for wipers be hooked to ?? what is port into block for ????
Thanks...
| | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | There should be a line from the intake manifold to the fuel pump, and another one from the pump to the wiper motor. The pump doesn't provide all the vacuum- - - -it just enhances what the engine produces. If there's room to put a reserve tank somewhere under the cab, etc., it might not even be necessary to run a dual action pump. A piece of 4" PVC pipe a couple of feet long with caps glued to both ends makes a very good vacuum reserve tank and it's easy to hide along a frame rail. Just use a one-way check valve like the one for a power brake booster to keep the vacuum in the reservoir, and another hose to the wiper motor.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | Here's how I plumbed things before I went to electric. Don't know if it really made things better or not. . Vacuum Wiper Setup..
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
| | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | | | | | | Joined: Feb 2015 Posts: 22 'Bolter | | 'Bolter Joined: Feb 2015 Posts: 22 | | | |
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