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It is currently Fri Nov 01, 2024 9:39 am
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[ 9 posts ] |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm
Posts: 4074
Location: Gardnerville, NV
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 66 won't prime fuel pump I can't get a new fuel pump here till Tuesday, so I thought I'd ask.
Is there anything I should know about the fuel pump on a 66 with a 170? Its a strange looking contraption.
It will run as long as I dump fuel down the carb, but the pump isn't pumping fuel. There is a clear, in line, fuel filter just before the carb, and its still empty, despite running the motor by hand for quite some time.
I'm guessing the old pump went bad after sitting for the last few years. But any advice is appreciated.
_________________
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe
74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
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| Sat Oct 17, 2015 2:14 pm |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm
Posts: 4074
Location: Gardnerville, NV
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Re: 66 won't prime fuel pump The vacuum lines from the top of the pump are just connected together with a short section of vac hose. I looked at some pics, and that doesn't seem right. Where should they connect?
_________________
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe
74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
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| Sat Oct 17, 2015 2:54 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
Images: 0
Location: Colorado Springs
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Re: 66 won't prime fuel pump To the manifold if I recall correctly. The '66 fuel pump is vacuum actuated.
_________________
Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Sat Oct 17, 2015 3:58 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
Images: 0
Location: Colorado Springs
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Re: 66 won't prime fuel pump Give me a few minutes and I'll post up the fuel system pics from the '66 service manuals.
_________________
Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Sat Oct 17, 2015 3:59 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
Images: 0
Location: Colorado Springs
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Re: 66 won't prime fuel pump
_________________
Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Sat Oct 17, 2015 4:10 pm |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm
Posts: 4074
Location: Gardnerville, NV
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Re: 66 won't prime fuel pump I'm confused. Is the fuel pump also a vac pump? Or is it vac actuated? The instructions above mention the fuel pump arm & a cam eccentric.
There is a plug in the side of the intake manifold, where the vac line should hook up. Also my vac wipers have been replaced with electric. So one side of the pump should be capped off?
_________________
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe
74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
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| Sat Oct 17, 2015 4:50 pm |
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akaFrankCastle
Official CCB Member
Joined: Wed Oct 27, 2010 6:25 pm
Posts: 4901
Images: 0
Location: Colorado Springs
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Re: 66 won't prime fuel pump Yeah. It's confusing to me too. Seems as though it is a mechanical fuel/vacuum pump. Don't know where I got vacuum actuated from.
_________________
Stroppe'd
1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One
1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
1973 Stroppe Baja project
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| Sat Oct 17, 2015 8:52 pm |
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Gunnibronco
Official CCB Member
Joined: Mon Jan 03, 2011 6:07 pm
Posts: 4074
Location: Gardnerville, NV
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Re: 66 won't prime fuel pump I'm guessing the vacuum side of the pump adds extra vacuum to assist the wipers. Maybe engine vacuum couldn't keep up without some help.
If that is the case, it has nothing at all to do with why the pump won't prime.
_________________
"America is at that awkward stage. It's too late to work within the system, but too early to shoot the bastards." – Claire Wolfe
74-AWB 98", ZF5, Atlas4, TGW HP1060 and HP1014 axles, ARBs, 37's, 3.5" lift-5.5" front coil springs, Tahoe rear springs, EFI 302, h-boost, York OBA, 4x4x2, custom dash & gauges
72 U15- Explorer Sport-Candyapple Red (1 of 141)
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| Sat Oct 17, 2015 9:05 pm |
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casadejohnson
Official CCB Member
Joined: Tue Oct 05, 2010 9:30 pm
Posts: 708
Location: Greeley
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Re: 66 won't prime fuel pump The vacuum lines were for the vacuum driven wipers, which sucked bad. Buy a fuel pump for anything else with a 170 and it won't have the vacuum lines and will also be a lot less $,
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| Mon Oct 19, 2015 10:40 pm |
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