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Old 05-27-2019, 07:38 PM   #2481
fleetw00d
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Quote:
Originally Posted by Raf99 View Post
Well shit. Fixed the PS leak and got the coolant system bled (using old coolant hose for upper rad), backed it out of the garage just to realize there is a gas leak

What's worse is that it's coming from on top of the gas tank ....... fack...
I was able to change that line for a friend (one of my former Accords). If I remember correctly, I had to drop the rear cross member (left the control arms connected to the knuckles) and drop the rear of the tank enough to access it. I After I dropped the cross member, I was able to at least partially wire brush and spray a lubricant on the tank strap bolts before I tried to remove them. Depending on how rusty you think they are, the brackets are still available from Honda; $11.81 from Majestic.
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Old 06-01-2019, 10:48 PM   #2482
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Well............

As I suspected the pump seal is leaking. But why it's leaking is the question here. I've seen this before and it was when I didn't tighten the clamp on the fuel pump hose enough. This resulted in the fuel squirting towards the top of the unit and the tank/pump seal cannot contain it. And it leaks around the old OEM seal.

Any thoughts from you folks on what the problem may be....?





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Old 06-02-2019, 12:55 AM   #2483
cp[mike]
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is the EVAP system working? after driving the car for a while, when you opened the gas cap, did you hear pressure hissing out? Perhaps the built up pressure was forcing gas fumes and droplets out through the pump gasket.
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Old 06-02-2019, 11:18 AM   #2484
Raf99
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Quote:
Originally Posted by cp[mike] View Post
is the EVAP system working? after driving the car for a while, when you opened the gas cap, did you hear pressure hissing out? Perhaps the built up pressure was forcing gas fumes and droplets out through the pump gasket.
Ya, EVAP was working and the leak was an obvious drip. But I already ordered a Walbro 450 pump. And looking at this unit now I'm more puzzled than before, everything looks fine. But why would the fuel be coming out near the seal. The car was sitting in the garage idling when the leak was happening.





The banjo bolts /clamps were tight. I thought the banjo bolts / clamps were loose in which the pump would shoot fuel up at the fuel pump lid leak out the seal.... but doesn't seem to be the case.




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Old 06-03-2019, 07:06 AM   #2485
talonted1990
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Totally a shot in the dark because I haven't ever done a fuel pump on a Honda but is there a washer missing from the banjo bolt? Just asking because every banjo I have run across in my experience has a washer on each side and I have chased leaks from only having one installed, just a guess.
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Old 06-03-2019, 10:39 AM   #2486
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Hey, considering the leak is recent and i had this setup for 2+ years I don't think it's related but thanks for thinking outside the box. Maybe the leak is coming from the banjo connection and not the seal portion.

Looking at the document/pic/schematic there should be a washer on either side of the line. Good find! I'll make sure to get that done. It's hard to see in the pic if there is a washer on either side, i'll check tonight when i get home. I think the only thing i can do there is to make sure all fittings are tight and put that tank back in the car with the new Walbro 450lph pump.

Last edited by Raf99; Yesterday at 07:10 PM.
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Old Yesterday, 05:45 AM   #2487
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So tested out the o'rings and connections on the pump holder unit that goes in the tank. Could not find any issues with anything. So just going to get everything installed to the best of my ability. I also noticed there is other pressure related valves in the tank (center opening), but not sure what the function of these are for....

What's everyone's thoughts on the Walbro 450 pump sock not sitting flush in the tank vs. OEM? (One side is up against the wall/on an angle; )



Other pics:

Old unit:









Put some undercoating on the tank again and will put it back in the car this week. I'm still puzzled as to why I had a leak, I'm starting to wonder why fuel would even pressure itself up near the seal.

Last edited by Raf99; Yesterday at 07:09 PM.
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