#1
|
|||
|
|||
Leaky fuel line
I sent my qjet to Eric for rebuild and needed to replace the fuel pump to carb after I got it back. I installed the new line and is leaking at the fuel pump fitting. I refitted it two more times and it is still leaking. I lifted the front of the car to try to get the fuel from flowing to the fuel pump for now. I have not started the engine yet with the new line (for obvious reasons) so I don’t know if it will be leaking at the carb. It was leaking at carb with the prior line and that is why I bought a new line.
What is the best way to solve this issue? I have considered getting a stainless flex line with AN fittings if that will fix this problem. This is on my 70 Monte Carlo with LS5 454.
__________________
Dave 1970 Monte Carlo SS |
#2
|
||||
|
||||
Original fuel pump or aftermarket ? Many aftermarket needed an adapter for the flare on the hard line. A flare line will thread into an iron pipe thread, but obviously not seal.
I've run across over the counter A/C pumps that needed that adapter also.
__________________
Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 13k miles |
#3
|
||||
|
||||
|
The Following 3 Users Say Thank You to napa68 For This Useful Post: | ||
#4
|
|||
|
|||
I started using the AC copper flair gaskets about 10 years ago and EVERY engine I work on gets them.The are a life saver .Tom
|
#5
|
||||
|
||||
Quote:
Cool !! I never knew of these either ! What a great source of information. I avoid adding to Bozos' considerable fortune, so found them on FASPARTS website for $2.50 each. I ordered 6 and even with shipping the cost comes out to $21.69. About half the cost of 6 with free shipping on Amazon... https://fasparts.com/store/sae45-59-6.html
__________________
Mitch 1970 Chevelle SS 1966 Chevelle SS 1967 Camaro ss/rs 1938 Business coupe, street rod 2000 FXSTS, original owner, 13k miles |
#6
|
|||
|
|||
Just add a little grease around the threads of the new line, that should do it. Had the same problem with a new line, but at the carb end. So far, not a leak in four years. I used wheel bearing grease.
|
#7
|
|||
|
|||
Mr. Nickey Nova has suggested a easy solution that I tried out. I had a fuel leak issue at the fuel pump and asked for tips/solutions on this forum. A member at that time suggested the grease on the threads technique. Such a simple fix and I wasn't expecting miracles, but that's what it turned out to be. At least a year later and I am not experiencing leaks !
|
#8
|
|||
|
|||
Thanks. I ordered 6 of the copper washers but will try the wheel bearing grease first. I would have never known about either of these solutions. That is why I posted this dilemma here first for the knowledge of the people here.
__________________
Dave 1970 Monte Carlo SS |
The Following User Says Thank You to drdave69 For This Useful Post: | ||
parkbrau (01-24-2022) |
#9
|
||||
|
||||
I find that the double flares done by a hydraulic flaring tool are not as consistent in the mating surface as the ones using a tool that spins the end into the flare.
SO I have found that lightly snugging the nut and then spinning the tube around a few times (lapping the flares together) then light tightening and repeating the spinning of the flare will lap the two together and alleviate leaks- it works especially well on problem stainless flares.
__________________
~JAG~ NCRS#65120 68 GTO HO 4 spd Alpine Blue /Parchment 2 owner car #21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built. 71 Corvette LT1 42k miles Original paint - Black - black leather - only black LT1 known to exist. NUMEROUS Lemans blue Camaros, Monza Red and Daytona Yellow Corvettes & a Chevelle or two... Survivors, restored cars, & other photos https://picasaweb.google.com/lh/myphotos |
#10
|
|||
|
|||
I used a small piece of copper sheet and made my own washer and it worked fine. Also, the alignment has to be perfect and tighten 5 or 6 times to work the flare
__________________
69 SS 350 convertible (in peices) 69 327 convertible (driver) |
|
|