daliant
Befuddled
How about nylon/plastic fuel line for the "in tank" section and some crimp style clamps?
Rubber hose wont survive ethanol fuel when submerged.
Rubber hose wont survive ethanol fuel when submerged.
EFI In Tank Pump Baloney
- Thread starter matthon
- Start date
-
threewood
Well-Known Member
That is exactly how my Holley Sniper EFI in tank pump came. I had to cut the line to length and heat the ends so they could be slipped over the fittings. Hose clamps were used.
matthon
Well-Known Member
- Joined
- Aug 29, 2008
- Messages
- 2,981
- Reaction score
- 1,351
I think that is the exact issue, the rubber hose turns soft, it doesn't survive.
I'm going to see if the local parts store has the nylon hose or ptfe and clamps, just so I can fix it and be done this weekend.
If not, I'll order it online, and wait.
The guy mentioned the nylon hose, and that it needed to be heated to get it on the fuel pump side, but said it had a threaded end to screw into the housing.
That wasn't really making sense to me at the time.
It appears the solution they sent included the wrong teflon tape, the wrong fitting, the wrong hose, and a 1 sweet clamp - but I need 2!
Fail.
I was right about the baloney, seems like a triple decker sandwich at this point.
I'm going to see if the local parts store has the nylon hose or ptfe and clamps, just so I can fix it and be done this weekend.
If not, I'll order it online, and wait.
The guy mentioned the nylon hose, and that it needed to be heated to get it on the fuel pump side, but said it had a threaded end to screw into the housing.
That wasn't really making sense to me at the time.
It appears the solution they sent included the wrong teflon tape, the wrong fitting, the wrong hose, and a 1 sweet clamp - but I need 2!
Fail.
I was right about the baloney, seems like a triple decker sandwich at this point.
famous bob
mopar misfit
You guys know that Teflon tape dissolves in gasoline don't you !?? Teflon paste is a little better .
69_340_GTS
Well-Known Member
This should be useful:
How to choose thread sealant for fuel applications
To choose the appropriate thread sealant, look for it's chemical resistance to fuel (diesel or gasoline) or oil running through the line. Backyard mechanics will tell you they've used regular old gas resistant teflon tape (yellow stuff) with success. This is not recommended because it risks breaking free. Liquid or paste type thread sealants are kinder to sensitive components down stream. Mechanics repairing injectors, fuel pumps and carburetors can tell you first hand it is not uncommon to trace fault in the fuel component to clogging from a piece of teflon tape that washed off the ends of the threads, clogging in the first tiny micron orifice it encounters, if not the fuel pump then an injector or carburetor gallery. Either way it's a costly repair. Liquid or paste type sealant won't clog. For gasoline, regular old gasoline resistant Aviation Form-a-gasket Number 3 is the best option. Another product also offered by Permatex is the High Temperature Thread Sealant. Tech data on this sealant says it has medium solvent resistance and is recommended for fuel sender type applications. With the advent of ethanol present in modern gasoline, I favor Form-a-gasket No. 3 which specifically states solvent resistance to gasoline, especially on modern engines that use injectors rather than carburetors such as the E-TEC and HPDI (high pressure direct injection) and any diesel engine. - Michael Reardon
Tech Writer
Jamestown Distributors
famous bob
mopar misfit
Agree w/ tis post ^^^^^^^ , but after 50ish yrs. of plumbing for a living , I can just about use anything w/ success.
No brag, just fact -------(walter Brennon) lol
matthon
Well-Known Member
- Joined
- Aug 29, 2008
- Messages
- 2,981
- Reaction score
- 1,351
Just to update, pulled pump again.
Hose was soft and blown out on top, you can see where the hose is dry vs wet.
Outlet fitting has white teflon tape on it, that's the way it came.
Return has a green o-ring.
That's not even the return from my external regulator, it's the return if you keep their internal regulator, which I did not.
Return fitting and outlet fitting not interchangeable because the return one is too big.
Pulled outlet, removed disintegrated teflon tape, put form-a-gasket on it, heated nylon hose, slipped on, put clamps on both ends.
Started, didn't want to idle. Plugs were fouled bad, when it lost psi last time it was guzzling gas, and smelled of gas bad, trying to stay running.
Ordered new plugs, pulled, sanded old ones. Took for a long drive, psi held, idled fine. Got plugs yesterday, will swap asap. Changed cap/rotor.
Note: second gear is my new best friend!
It would always stumble in second, no more.
Much improved all around, the difference is gigantic.
Hose was soft and blown out on top, you can see where the hose is dry vs wet.
Outlet fitting has white teflon tape on it, that's the way it came.
Return has a green o-ring.
That's not even the return from my external regulator, it's the return if you keep their internal regulator, which I did not.
Return fitting and outlet fitting not interchangeable because the return one is too big.
Pulled outlet, removed disintegrated teflon tape, put form-a-gasket on it, heated nylon hose, slipped on, put clamps on both ends.
Started, didn't want to idle. Plugs were fouled bad, when it lost psi last time it was guzzling gas, and smelled of gas bad, trying to stay running.
Ordered new plugs, pulled, sanded old ones. Took for a long drive, psi held, idled fine. Got plugs yesterday, will swap asap. Changed cap/rotor.
Note: second gear is my new best friend!
It would always stumble in second, no more.
Much improved all around, the difference is gigantic.
famous bob
mopar misfit
My fast 2.0 f/inj. came w/ a complete set of the black pushlok fittings and hose , but also had a funny looking clamp for them too.
I like em .
-
