Cascade Crew

Twilightoptics · Posted: Wed Dec 19, 2007 7:15 am Post subject:

The necks are soldered in. You'd have to call around. Maybe a lining shop could do it. There has to be a way to get a cap to seal on your car AL. I've seen some really bad looking necks that still sealed.

blue89 · Posted: Wed Dec 19, 2007 7:30 am Post subject:

Are you sure you have the right cap? The S10/tahoe caps look the same but have a different thread pitch. Post a picture if the situation has weirdness.

You could cut the filler tube by the tank and then clamp a hose to it to join in a filler neck of your choice. Thats what I've seen done when people go with the 4th gen tank (filler neck on 4th gen is way longer).

Al Hasse · Posted: Wed Dec 19, 2007 7:51 am Post subject:

The cap is the one from NAPA which is supposed to be for our cars. I even took the one from my 92 which does seal, and it leaks on the 89. I went as far as disabling the ratchet by epoxying the two pieces of the cap together so I could tighten it further, it helped somewhat, but still leaks. Maybe I should try for one at the dealer.

blue89 · Posted: Wed Dec 19, 2007 8:48 am Post subject:

The cap isn't supposed to seal.... ?

Do you have excessive tank pressure? What exactly is the symptoms? Gas flowing out the fill tube?

Al Hasse · Posted: Wed Dec 19, 2007 9:06 am Post subject:

Yes, when the tank is at 3/4 to full. I know my 92 seals (or seats is a better term) because it vents off when I loosen the cap.

I have a thought though, maybe the cap is bottoming out in the fill tube, on the piece for the fuel nozzel. I only think this because the cap from my 92 doesn't seal on the 89 (Ihave 3 caps that all seal on my 92, but all fail to seal on the 89). Maybe if I took a belt sander to the bottom of the cap and took off about 1/4 - 1/2 inch, the o-ring in the cap should seat against the filler neck.

blue89 · Posted: Wed Dec 19, 2007 9:46 am Post subject:

Good idea. A quick couple measurements will determine that real fast. I'm curious so let me know what you find out.

Sellmanb · Member Joined: 30 Nov 2004 Posts: 727 Location: Tigard, OR

Are you sure it's not something more like the fuel vapors are constantly being let out, thus not building any pressure... i.e. if the canister was deleted?

Al Hasse · Posted: Wed Dec 19, 2007 1:30 pm Post subject:

I still have my canister, though I can't say how well it works Confused

aaron_sK · Posted: Wed Dec 19, 2007 3:04 pm Post subject:

Al, from your canister there should be a pretty obvious stretch of line that connects to the hardline that runs to the tank. Try pulling it after the car has been run to see if it's a pressure release problem.

Mine started doing that last year, due to a bad solenoid or something. Still haven't fixed it.

Al Hasse · Posted: Wed Dec 19, 2007 3:13 pm Post subject:

Thanks, I'll check. The thing leaks as soon as I fill up and leave the station - ask the crewbies from the trip to K-Falls.

aaron_sK · Posted: Wed Dec 19, 2007 3:14 pm Post subject:

Hmm... odd. Mine never leaked, it just sucked like crazy every time I pulled the cap, and smelled like gas all the time.

Al Hasse · Posted: Wed Dec 19, 2007 3:35 pm Post subject:

Well, I'm going to look into a couple of things tonight and this weekend, then Ill start a new thread in the garage where this should have been. But hijack seems to be what we do best.... Very Happy

Vaneat-91RS · Posted: Wed Dec 19, 2007 6:44 pm Post subject:

You can report this to the state to get them to fix it. All gas stations have to be certified by a EPA approved testing company. They not only test the tanks, but test pump accuracy as well. My brother-in-law is a manager for a company who does this, and they bring a truck with a guage and verify the accuracy of the pumps, and they have to sign off on it or they can literally shut the station down until they fix it. Definitely keep records for verification. I'm not 100%, but I think the pumps have to be tested every 6 months.