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7 members (Shaffer's1950, Steelonsteel, Hotrod Lincoln, 2-Ton, homer52, Tiny, mo2cyl),
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Mod | | | Forums66 Topics128,049 Posts1,055,665 Members48,426 | | Most Online14,466
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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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Mar 2011 Posts: 940 'Bolter | | 'Bolter Joined: Mar 2011 Posts: 940 | I'm running copper line from the manifold on my 216 to a fuel pump w/ vacuum assist then back over to the wiper motor. What size line should I be using? 1/8 or 1/4?
Also, if I'm going to eventually add a brake booster, can I "T" the line after the assist pump and run both the wipers and the brakes safely?
...what about also adding a vacuum defrost fan to the mix?
Thanks! | | | | | Joined: Mar 2011 Posts: 457 Shop Shark | | Shop Shark Joined: Mar 2011 Posts: 457 | Since nobody else has jumped in, I'll give my two cents worth. I believe my vacuum wipers use 1/4" on my only car with them. I don't have a booster on any old vehicles now, but I seem to recall that the hose was 1/2" or so. I do remember a shop bulletin saying never tap into brake booster line to add a vacuum accessory. Safety first! 
Last edited by 40casey; 09/02/2012 9:28 PM.
1940 Chevy 1/2 ton pickup "KC"
A day without sunshine is like, well, ..... dark!
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