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Thread: Copper fuel line?
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08-01-2020, 08:49 AM #1
Copper fuel line?
Anyone ever tried using COPPER line for fuel lines?
I'm doing a Vst delete and thinking out of the box and modified a filter to accept 3/8"npt and 1/2" copper tubing.
If I suport the tubing well will copper be ok to use?
This pic is just a test to see if the pump and all routed. So far it pumps great
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08-01-2020, 09:52 AM #2
I wouldn't. Copper doesn't like vibration at all. Nothing like fuel spraying around everywhere...
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08-01-2020, 09:54 AM #3Screaming And Flying!
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Copper is a boat no,no. Even on steering systems it is sketchy.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
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nitro_rat liked this post
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08-01-2020, 09:55 AM #4Member
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It won't hold up to the bouncing the lines will come loose in the compression fittings. Flares might do ok. Otherwise the new standard on semis is a nylonish tubing and compression fittings
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08-01-2020, 10:12 AM #5
Jeg's has stainless fuel line kits. https://www.jegs.com/p/JEGS/JEGS-Sta...51509/10002/-1
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08-01-2020, 10:28 AM #6
My CVX20 Carlson had copper line from the tank in the front(probably it's whole life)and never had an issue.
If I knew it was going to last this long I would have taken better care of it.
Chris
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phillnjack liked this post
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08-01-2020, 10:39 AM #7
As hard as it is to believe they are using copper for brake lines now. I guess it all depends on the alloys used.
RockTeam Junk
No sparkling wiggles in here, only dump truck grinches.
"Screamin Heathen"
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keefallan liked this post
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08-01-2020, 11:43 AM #8
Copper-Nickel alloy: https://oppositelock.kinja.com/the-t...nes-1818499200
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CVX20SPRINT liked this post
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08-01-2020, 12:18 PM #95000 RPM
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Thought I read or was told once about copper reacting with ethanol or other fuel additives. Anybody else ever heard this?
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08-01-2020, 12:40 PM #10The Historic Photo Master
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08-01-2020, 12:46 PM #11The Historic Photo Master
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...this electric fuel pump(walbro) came standard with all johnrude V-8 outboards, as well as some of the V-6's, for years & years. copper tubing & fittings. hey, but that was omc...
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keefallan liked this post
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08-01-2020, 12:53 PM #12
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08-01-2020, 03:42 PM #135000 RPM
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https://pubs.acs.org/doi/abs/10.1021/ef049849h
Thought I was on to something.
Bet that's why there's always the weird green goo on brass fittings in the fuel circuit. If so copper would produce far more than brass.Last edited by Whaaaaat; 08-01-2020 at 03:52 PM.
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08-01-2020, 03:59 PM #14The Historic Photo Master
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...i would not use copper tubing & fittings for fuel on a boat. i was just showing that omc used it at one time.
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08-01-2020, 05:04 PM #15Screaming And Flying!
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I have seen lots of copper used on old diesel boats. It was always green and slimy. Never replaced any with new copper. Have used stainless tube for the straight runs and hose for bends.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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