dbhill916
Well Known Member
Hi folks,
yet another set back for Hill's Air Force. I filled & calibrated the pre-assembled fuel tank last weekend, only to discover a leak. The tank came out yet again and was put on th bench for leak testing. Pressure testing (balloon, bike pump & bubble soap, per chap 37) was not successful in locating the leak. (I think my fuel cap is no longer air tight, despite plugging the vent with a 4-40 screw as suggested by someone else.)
Filling the tank with 18 gal revealed not 1, but 2, separate leaking spots. Both are very slow, but clearly present. Both are at corners: lower left front and upper right front.
Question: How should I go about making repairs to these corners? The obvious (to me) approach is to scrape/clean off the pro-seal in these areas and get down to the bare metal; clean & scuff the metal as per chap 37, then liberally apply pro-seal; and finally renew my conversations with the deity of my choice.
The other approach (which I'm hoping to avoid) is to remove the front panel from the tank in order to attempt repair from both the inside, and the outside.
Am I missing anything? Is it even reasonable/possible to repair these kinds of 'pinhole' leaks?
As always, thanks in advance for all advice,
yet another set back for Hill's Air Force. I filled & calibrated the pre-assembled fuel tank last weekend, only to discover a leak. The tank came out yet again and was put on th bench for leak testing. Pressure testing (balloon, bike pump & bubble soap, per chap 37) was not successful in locating the leak. (I think my fuel cap is no longer air tight, despite plugging the vent with a 4-40 screw as suggested by someone else.)
Filling the tank with 18 gal revealed not 1, but 2, separate leaking spots. Both are very slow, but clearly present. Both are at corners: lower left front and upper right front.
Question: How should I go about making repairs to these corners? The obvious (to me) approach is to scrape/clean off the pro-seal in these areas and get down to the bare metal; clean & scuff the metal as per chap 37, then liberally apply pro-seal; and finally renew my conversations with the deity of my choice.
The other approach (which I'm hoping to avoid) is to remove the front panel from the tank in order to attempt repair from both the inside, and the outside.
Am I missing anything? Is it even reasonable/possible to repair these kinds of 'pinhole' leaks?
As always, thanks in advance for all advice,