80 CJ7 fuel leak
OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is
full. Seemed simple. I replaced the filler neck (old one had a dent), replaced the hoses (filler and vent), replaced the filler cap (three times, the "stock" type non locking leaks the least), tightened hose clamps on hoses, check to make sure the vent lines to the charcoal canister were not pressurized. But backup and stop hard or go around a left corner and there is fuel running down the right rear fender from the filler. Any Ideas? |
Re: 80 CJ7 fuel leak
Hmmm....
You know, I put a 'new' aftermarket gas cap on and have the same issues. I just took one of the 'rubber' gaskets off the old cap and doubled them up under the new one. That seems to work. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's stevegallaher@sprintmail.com wrote: > > OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is > full. Seemed simple. I replaced the filler neck (old one had a dent), > replaced the hoses (filler and vent), replaced the filler cap (three times, > the "stock" type non locking leaks the least), tightened hose clamps on > hoses, check to make sure the vent lines to the charcoal canister were not > pressurized. But backup and stop hard or go around a left corner and there > is fuel running down the right rear fender from the filler. Any Ideas? |
Re: 80 CJ7 fuel leak
Hmmm....
You know, I put a 'new' aftermarket gas cap on and have the same issues. I just took one of the 'rubber' gaskets off the old cap and doubled them up under the new one. That seems to work. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's stevegallaher@sprintmail.com wrote: > > OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is > full. Seemed simple. I replaced the filler neck (old one had a dent), > replaced the hoses (filler and vent), replaced the filler cap (three times, > the "stock" type non locking leaks the least), tightened hose clamps on > hoses, check to make sure the vent lines to the charcoal canister were not > pressurized. But backup and stop hard or go around a left corner and there > is fuel running down the right rear fender from the filler. Any Ideas? |
Re: 80 CJ7 fuel leak
Hmmm....
You know, I put a 'new' aftermarket gas cap on and have the same issues. I just took one of the 'rubber' gaskets off the old cap and doubled them up under the new one. That seems to work. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's stevegallaher@sprintmail.com wrote: > > OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is > full. Seemed simple. I replaced the filler neck (old one had a dent), > replaced the hoses (filler and vent), replaced the filler cap (three times, > the "stock" type non locking leaks the least), tightened hose clamps on > hoses, check to make sure the vent lines to the charcoal canister were not > pressurized. But backup and stop hard or go around a left corner and there > is fuel running down the right rear fender from the filler. Any Ideas? |
Re: 80 CJ7 fuel leak
Gas leak solved. Two gaskets made sense, simple, elegant - but still
leaked. Sooo - tear the filler down and guess what? The "new' filler neck leaks. Where the rim fits on the body of the neck - only tack welded. Put on cap, set on ground, fill with gas a gusher. Take used one off 76 CJ5 (converted to new style filler), put on cap fill with gas, no leak. The used neck is pretty old and still took two gaskets - Sooo respect given and thanks Mike Romain from Gumby in Florida. "Mike Romain" <romainm@sympatico.ca> wrote in message news:41518381.C369ADC2@sympatico.ca... > Hmmm.... > > You know, I put a 'new' aftermarket gas cap on and have the same issues. > > I just took one of the 'rubber' gaskets off the old cap and doubled them > up under the new one. That seems to work. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > stevegallaher@sprintmail.com wrote: > > > > OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is > > full. Seemed simple. I replaced the filler neck (old one had a dent), > > replaced the hoses (filler and vent), replaced the filler cap (three times, > > the "stock" type non locking leaks the least), tightened hose clamps on > > hoses, check to make sure the vent lines to the charcoal canister were not > > pressurized. But backup and stop hard or go around a left corner and there > > is fuel running down the right rear fender from the filler. Any Ideas? |
Re: 80 CJ7 fuel leak
Gas leak solved. Two gaskets made sense, simple, elegant - but still
leaked. Sooo - tear the filler down and guess what? The "new' filler neck leaks. Where the rim fits on the body of the neck - only tack welded. Put on cap, set on ground, fill with gas a gusher. Take used one off 76 CJ5 (converted to new style filler), put on cap fill with gas, no leak. The used neck is pretty old and still took two gaskets - Sooo respect given and thanks Mike Romain from Gumby in Florida. "Mike Romain" <romainm@sympatico.ca> wrote in message news:41518381.C369ADC2@sympatico.ca... > Hmmm.... > > You know, I put a 'new' aftermarket gas cap on and have the same issues. > > I just took one of the 'rubber' gaskets off the old cap and doubled them > up under the new one. That seems to work. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > stevegallaher@sprintmail.com wrote: > > > > OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is > > full. Seemed simple. I replaced the filler neck (old one had a dent), > > replaced the hoses (filler and vent), replaced the filler cap (three times, > > the "stock" type non locking leaks the least), tightened hose clamps on > > hoses, check to make sure the vent lines to the charcoal canister were not > > pressurized. But backup and stop hard or go around a left corner and there > > is fuel running down the right rear fender from the filler. Any Ideas? |
Re: 80 CJ7 fuel leak
Gas leak solved. Two gaskets made sense, simple, elegant - but still
leaked. Sooo - tear the filler down and guess what? The "new' filler neck leaks. Where the rim fits on the body of the neck - only tack welded. Put on cap, set on ground, fill with gas a gusher. Take used one off 76 CJ5 (converted to new style filler), put on cap fill with gas, no leak. The used neck is pretty old and still took two gaskets - Sooo respect given and thanks Mike Romain from Gumby in Florida. "Mike Romain" <romainm@sympatico.ca> wrote in message news:41518381.C369ADC2@sympatico.ca... > Hmmm.... > > You know, I put a 'new' aftermarket gas cap on and have the same issues. > > I just took one of the 'rubber' gaskets off the old cap and doubled them > up under the new one. That seems to work. > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's > > stevegallaher@sprintmail.com wrote: > > > > OK, so I have a 1980 CJ7 with fuel leaking out of the fill when the tank is > > full. Seemed simple. I replaced the filler neck (old one had a dent), > > replaced the hoses (filler and vent), replaced the filler cap (three times, > > the "stock" type non locking leaks the least), tightened hose clamps on > > hoses, check to make sure the vent lines to the charcoal canister were not > > pressurized. But backup and stop hard or go around a left corner and there > > is fuel running down the right rear fender from the filler. Any Ideas? |
All times are GMT -4. The time now is 01:58 AM. |
© 2024 MH Sub I, LLC dba Internet Brands