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Old 09-12-1999, 03:03 AM
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Anybody out there have an old benz with rusty tank? My until today, completely reliable '59 190sl is clogged up with small rust particles. I ran out of gas on a date with my sweety (unplanned!) and we just put gas in it and drove home. After a few days I tried to start it but no go. 1st time ever that it wouldn't start. Well I figure when I ran low the dredge in the bottom of the tank got suck up into the lines and then dried while it sat for a few days.

Now whats the easiest way to unclog all this stuff? I've cleaned out the pre-fuel pump filter, but still no flow.

I'm not excited about pulling the tank out unless I have to. What I'm planning on doing is disconnecting the lines by the tank and by the pump and trying to squirt some gas down the lines to wash them out. Any better ideas? Anyone been through this before?

Old 09-12-1999, 05:56 PM
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Hi All,

I've since fixed my rust in lines problem with a miti-vac. Rust had clogged up the line by the main/reserve valve.

Sorry for posting this in the performance instead of Tech board.

Old 09-12-1999, 05:59 PM
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Thanks for following up with us on the fix.

No problem with the post in the wrong forum...I just moved your thread to Tech Help.

Bill Wood - Webmaster, LLC

Old 09-12-1999, 09:33 PM
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Many times when I see this, I will take out the tank and send it to a radiator shop to boil it out.

1987 16V

Old 09-13-1999, 06:49 PM
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Join Date: Aug 1999
Location: Cincinnati, Ohio
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I agree with Benzmac, have the tank boiled out at a radiator shop, and have it copper coated on the inside. This will prevent any further rust build up. A friend had this done on his BMW 2002 and it worked great.

Aaron Greenberg
MB technician
'67 250SE Cabriolet
'77 450SL
'79 6.9
'79 6.9
'80 300SD
'81 240D
'85 380SE
'89 420SEL
'93 300E 2.8
Old 09-13-1999, 09:01 PM
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Okay, Okay...You guys are right...I was just being lazy and wanted to have it to drive while its still nice outside. I'll take it out and have it boiled.

Here's a question...I've got a fuel gage that reads 1/4 when its really empty and I noticed this weekend that my fuel sender is functioning okay. Is there an adjustment that can be done to the gage or do I have to have it rebuilt?

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