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51HD5G 
Bronze Level
Joined: 19 Sep 2019
Location: Colorado
Points: 8
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 Topic: hd5 271 fuel hose
Posted: 18 Oct 2023 at 12:02am |
Trying to find a replacement hose, 059266 from original parts manual, the 11" hose the connects first stage fuel filter to tank. HD5G Detroit 271. Temporarily trying hoping to get by with rtv silicone wrapped in tape. 
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Codger
Orange Level
Joined: 23 Dec 2020
Location: Utopia
Points: 2458
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Posted: 18 Oct 2023 at 6:14am |
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Those are inverted flare fittings. I would change them both at the filter housing, and the fuel tank bung to NPT fittings barbed hose fittings and replace the hose with standard fuel line. This hose in hydraulic terms is SAE100R7 hose. Or, at the auto parts store, fuel line hose fitting the barb size you select, (usually 3/8").
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That's All Folks!
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Coke-in-MN
Orange Level Access
Joined: 12 Sep 2009
Location: Afton MN
Points: 42018
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Posted: 18 Oct 2023 at 11:03am |
Start fresh with new fittings to replace the old hose . I replaced all hoses including the one to the bypass filter for engine oil - just had to make a restrictor to control the flow , and on the line to fuel gauge pressuer install a snubber to limit pulsation of gauge .
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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51HD5G
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Joined: 19 Sep 2019
Location: Colorado
Points: 8
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Posted: 18 Oct 2023 at 9:52pm |
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Thanks for straight forward easy fix.
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51HD5G
Bronze Level
Joined: 19 Sep 2019
Location: Colorado
Points: 8
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Posted: 18 Oct 2023 at 9:59pm |
The original return line is still in place. I swapped out the line from tank to filter. Too windy and cold to try it yet. Tomorrow should be much better. Would this one work?
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42018
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Posted: 21 Oct 2023 at 12:28pm |
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You will find out fast if fuel pressure gauge bounces the needle - I used one that had a replaceable orfise rod that controlled the pulsation .
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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