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Tech Forum : Noisy fuel pump....crap in tank...

- BMW E21 Community
   - Tech Forum
      - Noisy fuel pump....crap in tank...
MayanArch   Posted Saturday, Jun 14th 3:09am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1575
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
The mechanic that I bought the tank from promises me that he flushed the tank and prepped it...but that after the car starts running stuff peels away.

Every once in a while I get some stuff on the fuel pump screen.....and this makes for a noisy whistle as the pump strains.

Is there a way of cleaning out the tank again....short of dropping it?

Is there a style of fuel pump that avoids sucking up mess better than the E30 style pumps?

MayanArch   Posted Tuesday, Jun 24th 3:58pm [Edit] [Quote] [IMS] [View car]
Member
Post nr. 1587
   
Florida, USA
Baur E21 2.7 1982, Baur E30 318i 1985, 323i 1978
Help.....anyone.

g323   Posted Wednesday, Jun 25th 12:36am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 287
   
California
323i 1982

Is there a way of cleaning out the tank again....short of dropping it?

i would say, empty the tank jack up the car so the gas drains by itself and poor a gallon or two through letting it all drain out, maybe tap the tank from the bottom to try to clean the gunk out. if the tank doesnt allow a direct drain, psyphon.



melloh   Posted Wednesday, Jun 25th 7:17am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 674
   
California, USA (San Jose)
1980 320is, 1991 318is
Can you flush it through the hose that connects the 2 tanks? Obviously, you'd need a lot of liquid. I would suggest NOT using fuel (expensive and dangerous). Maybe alcohol (won't add water, cheaper, won't blow up in your face)?


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