Quote:
Originally Posted by Shern
Ha, absolute trust. “Questionable payoff” was referring to the end of this story for our readers, not me. I of course have everything to gain.
Last night I crimped the inlet rear fuel line. And this morning?
No bubble still.
This is getting interesting. I’m left with either the rear hose clamp on that same line, the hose clamp on the line from the tank screener, or the tank screener gasket itself.
My money (and hopes and dreams) was on the primary filter. Now I’m really hoping it’s not the screen gasket because that was not a fun job.
Logically this makes no sense, but to be thorough -would a full tank and or a narrower “temp cigar” have any bearing on this? The cigar hose is meant to accommodate surges in fuel, which would mean (in my mind) between surges the flow wouldn’t quite fill the circumference allowing bubbles back? Into the IP return line?
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The smaller diameter clear hose (1/4" i.d. for 1 ft) is a little more restrictive than 5/16 but not enough to make a difference when running IMO. Static wise, it makes zero difference.
Next thing to try is do not clamp anything and see if you get bubble (this tests the real cigar hose you removed and the 2 clamp connections). If you get a bubble, next thing to try is no clamp again but leave the fuel cap loose to simulate a working tank vent (I do not know if your tank vent is working. If you get bubble, next thing to try is clamp cigar hose (your clear line). If you get bubble, then clamp the return rubber line at the tank.
If none of the above tells you where the leak is, start testing each component with a Mityvac under both vacuum and pressure.