e21 -315 -1982-fuel tank pipes - Bimmerfest - BMW Forums



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E21 (1975 - 1983)

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Old 05-05-2018, 04:24 AM
eli36501 eli36501 is offline
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e21 -315 -1982-fuel tank pipes

this car has two fuel tanks connected with a pipe in between to keep fuel level the same on both tanks
on top of the tanks there is a a 12x18 mm pipe connecting both tanks they go to somewhere for ventilation
this pipe that connects on top of the two tanks leak when over filling fuel
I can see one side is seen next to the fuel level sender when you open an access panel on the
r/h side of the car but no access panel on the left to access the other end of the pipe
any body had experience to do that without dropping the fuel tanks .or a picture of another unknown panel??
thanks ELI
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  #2  
Old 05-05-2018, 06:55 AM
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hornhospital hornhospital is offline
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Sorry, Eli, but you'll have to drop the tank(s) to fix it.
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Last edited by hornhospital; 05-05-2018 at 06:56 AM.
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Old 05-05-2018, 11:31 PM
eli36501 eli36501 is offline
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what I was thinking is to drop a bit but not all the way the L/H tank just enough to access the pipe connection on top and insert a new pipe and maybe loosen the other R/H tank if necessary to pass over the pipe to the other side I really do not want to drop the whole thing down
any other ideas?
ELI
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Old 05-05-2018, 11:42 PM
eli36501 eli36501 is offline
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e21 fuel tanks pics

any body has pictures of the fuel tanks with the top pipes connections
e21 1982
ELI
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Old 05-06-2018, 08:27 AM
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hornhospital hornhospital is offline
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You are welcome to try it that way, but you're going to end up dropping the tanks to accomplish that job. There's just not room enough to replace the hoses with either side still in place. The vent connection on the left-hand tank is tucked up against the body. If you don't have an access plate on that side (you SHOULD have...are you SURE there's no access plate there, too?), there's no way to remove and replace the hose without dropping that side, and you can't effectively drop one side without dropping both, due to the cross-over pipe (#13) and mounting bracket hardware (#3) between the two tanks.
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Quotes to live by:
guessing gets expensive...drivinfaster
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BMW-CCA #441426

1993 325is M3 clone"Ashlyn"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette";1995 318is"Bebe "; 1985 325e "Hazel Ann"


Last edited by hornhospital; 05-06-2018 at 09:38 AM.
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