Re: Vintage Single OMC Line Fuel Tank

[jerry-ahrens]

quote NJ-boatbuilder57:

Interesting direction this thread is taking.

Barrel testing my engine last weekend, I noticed that there was pretty significant leakage at the tank/connector union. The tank is an older (mid-’60s) single-line tank in VGC, and the hose is homemade (hose from the NAPA store + bulb & fittings from a Marina). My connectors are NOT genuine OMC parts, but (I think) Sierra.

(FWIW, no leakage on the engine side…just at the tank)

Now, it wasn’t a ton of leakage….it’s not like I’m spurting fuel all over, but there is a noticeable wet seepage of gas all over the tank.

I wonder if a genuine OMC connector would help. Truthfully, I pretty much figured that, packaging aside, they’re all being [sadly] pumped out of the same Chinese factory, and the issue isn’t really branding, as much as it’s the simple lack of QC. Am I wrong?

I just checked the OEM connectors packaging.. they are made in the USA. Part # 775640 for the 5/16th barb and 775641 if you want the one with a 3/8 barb. If you have Sierra, I would toss em. FYI, if either connector is weeping fuel, you will also have a vacuum leak in the suction side of the fuel system. This can cause some weird running issues.