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Mod | | | Forums66 Topics128,075 Posts1,055,919 Members48,429 | | 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: Oct 2022 Posts: 13 'Bolter | | 'Bolter Joined: Oct 2022 Posts: 13 | Hello: I have a 1954 235 in my truck (from a powerglide 54 Belair). I was having issues with the truck dying and not starting last fall. So recently I performed Hotrod's 3 part fuel pump test. I have the double pump (fuel and vacuum). It passed the first 2 tests but it failed the vacuum test. The vacuum gauge was ready wildly erratically. So I found a modern 6 cylinder pump that was on a 228 I had in the barn. Probably a Napa basic 6 cylinder pump. Put it on. Did Hotrod's test on that. Fuel delivery was fine. Fuel pressure was fine. But the vacuum test was reading 20-25 inches. That normal? Hotrod's article referenced 10 inches.
Thanks
Dave | | | | | Joined: Feb 2004 Posts: 29,777 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,777 | That's an excellent quality pump- - - -the 10 inches is a minimum reading- - - -more is always better. That pump could probably suck a golf ball through a garden hose! I'll refrain from telling the rest of that joke- - - -don't want the hall monitor to get a case of the vapors!
LOL!
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: Oct 2022 Posts: 13 'Bolter | | 'Bolter Joined: Oct 2022 Posts: 13 | | | |
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