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| Fuel sender replacement | Rate Topic |
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| Posted: 06-20-2017 02:14 pm |
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1st Post |
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stuartmorgan Member 
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Hi all I replaced my fuel sender with a NOS one that I bought that came with the new seal and voltage balancer It worked great, so I filled it further, until it got to over half full and the leak appeared from under the lock ring boss, only slowly but enough So I bent theta sin further, got a flat blade next to one of the tab bases and tapped it further around clock wise until it basically stopped It seems to have halted the leak, so here's my question (s) I've never removed this type of ring lock before, only flange types I cheated and removed it with tank in situ, so I had to prise ring out and then flatten it again toner use Are they actually meant to work like a helical ie screw back into that opening or are the tabs supposed to bent to hold it there or are the tabs just to have something to grip while turn Ning I keep checking it in cares it leaks Oh and one other thing, the fuel hoses coming off the top of the tank and on the right hand side look original, with those twist wire clamps ( fuel pump connector hoses are new) the older hoses aren't leaking, should I leave them un disturbed?? Cheers Stu
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| Posted: 06-20-2017 04:10 pm |
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2nd Post |
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Frank Schwartz Member
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Stu: Those hoses are over thirty years old...prevent a leak in the future...replace them with new hoses.. The old "an ounce of prevention" thing, you know.. Regards, Frank
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| Posted: 06-20-2017 05:18 pm |
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3rd Post |
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Screenplay Member
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Hi Stu, It sounds as if what you've done is correct - tapping those tabs until the lock ring is tight and not bending them. It's always good to keep an eye on it for a while but after some time has passed with no leaks I'd say it's good to go. I completely agree with Frank on the hoses... replace them all while you're in there. It's a low pressure environment and they are sheltered from the elements, but they're old and they can and will get brittle, especially if the car is in any heat. Cheers, Clinton
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| Posted: 06-20-2017 08:01 pm |
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4th Post |
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Jim Ketcham Member
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When replacing the hoses remember the anti-siphon hose has a check valve embedded in it. Don't throw it out. It can be cut out and installed in your new hose.
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| Posted: 06-21-2017 12:44 am |
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5th Post |
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redracer Member
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Stu: 1) the tabs on the locking ring are just for getting it on and off(screwdriver works well) 2) Jim pointed out the very important anti-siphon valve(about the size of a 22 caliber bullet) located in the end of the line going to a "T" at the top left side of the gas tank. There should be the fuel line running from the electric pump going into this "T" at 90 degrees and exiting on the opposite side going to the carbs.(Earlier gas tanks did NOT have this anti-siphon valve and could leak gas through the carbs if the gas tank was higher than the carbs, such as when sitting on a steep downhill, nose first)
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| Posted: 06-21-2017 01:27 pm |
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6th Post |
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stuartmorgan Member
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Thanks frank I think your right I will do it as a weekend winter mental relaxation job Stu
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| Posted: 06-21-2017 01:28 pm |
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7th Post |
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stuartmorgan Member
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Thanks frank I did read about this and saw pics on an old blog Stu
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| Posted: 06-21-2017 01:31 pm |
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8th Post |
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stuartmorgan Member
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Thanks Clinton Hopefully I it doesn't start leaking again I put a bore scope in and took a look above and below baffles It was clean, no real debris, but some rust spots starting, but not bad, pretty good actually considering age Stu
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| Posted: 06-21-2017 01:34 pm |
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9th Post |
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stuartmorgan Member
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Hi Bruce Thanks mate Can you guys advise the fuel hose size for these lines and are they all the same size hose and barbs?? I had some fuel hose left over from when I did the Interceptor, but it's too big in Dia Stu
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| Posted: 06-21-2017 02:05 pm |
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10th Post |
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Brett Gibson JH5 20497 Member
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pretty sure 5/16"
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| Posted: 06-21-2017 02:48 pm |
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11th Post |
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redracer Member
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Fuel line to "T" is 5/16"; the plastic/black nylon lines have reducer rubber(1/8" I think) going to the charcoal cannister in front. (be sure that line is "OPEN" or you will create a gas tank vacuum). btw, forgot to mention in the previous email that we use #2 Permatex on both sides of the black rubber gasket to ensure against gas leaks from the sending unit/pick-up tube hole.
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