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  #1  
Old 04-17-2011, 11:45 PM
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Cleaning/Sealing a fuel tank

Hello, has anyone used a Por-15 type product or a company to clean/Seal a fuel tank. 1965 MB 220SE, tank is solid but had old fuel in it to long.

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  #2  
Old 04-17-2011, 11:50 PM
is thinning the herd
 
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I used the KBS kit on my W124 300D tank which was rusty internally. Worked great.
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  #3  
Old 04-17-2011, 11:59 PM
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I'm worried because I can't seem to get a metal rod to go very far into the return port on the outside of the tank. I think a professional cleaning might be in order.
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Old 04-18-2011, 05:38 AM
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What I did was I used kitchen cleaner with high concentration to soak over night. The next day I placed some sand and rocks to shake it. This process I repeated many many times.
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  #5  
Old 04-18-2011, 05:55 AM
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I used KBS aqua clean on my tank - it appeared to work well. Drying the tank out afterwards took forever here in Holland though. Even with compressed air etc etc etc
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Last edited by Stretch; 04-18-2011 at 10:33 AM. Reason: KBS aqua clean - POR15 Marine clean!
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  #6  
Old 04-18-2011, 08:07 AM
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I see a tube in the bottom of the tank that I think is the main line. Any idea how long the return line is? Thank you.
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  #7  
Old 04-18-2011, 10:34 AM
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Quote:
Originally Posted by 930dreamer View Post
I see a tube in the bottom of the tank that I think is the main line. Any idea how long the return line is? Thank you.
I have no idea on your car - try tracing the lines back from the engine bay?
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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!
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  #8  
Old 04-18-2011, 04:59 PM
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Quote:
Originally Posted by 930dreamer View Post
Hello, has anyone used a Por-15 type product or a company to clean/Seal a fuel tank. 1965 MB 220SE, tank is solid but had old fuel in it to long.
Check the W113 SL site for more info. The 'flower pot' is only used on the injected models.

http://www.sl113.org/wiki/Fuel/Tank

In fact, the Technical area is quite useful for our cars.
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Old 04-18-2011, 06:05 PM
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Quote:
Originally Posted by wbain5280 View Post
Check the W113 SL site for more info. The 'flower pot' is only used on the injected models.

http://www.sl113.org/wiki/Fuel/Tank

In fact, the Technical area is quite useful for our cars.
Ok, that make sense now. I'd be worried about clogging the lines with a sealing kit. If I had a shop clean and seal the tank, would they take the time to prevent clogging the fuel lines?
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Old 04-19-2011, 01:51 AM
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I've read some posts or a web site that had concerns about sealers and the current crop of fuels. Seems that the alcohol or some other additive can degrade some types of sealer and cause serious problems down the road. I would do some research before pouring stuff in the tank.

Michael
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  #11  
Old 04-19-2011, 09:11 AM
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I'll look at the stainer and go from there, Thanks all.
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  #12  
Old 04-19-2011, 09:46 AM
is thinning the herd
 
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To do the KBS system you completely remove the tank from the car, you're not anywhere near the car, or the lines when you seal the tank.
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  #13  
Old 04-19-2011, 09:53 AM
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Originally Posted by DieselPaul View Post
To do the KBS system you completely remove the tank from the car, you're not anywhere near the car, or the lines when you seal the tank.
I'm worried about plugging these line inside the tank.
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  #14  
Old 04-19-2011, 11:50 PM
Brian Ostosh
 
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Just make double, triple sure that air blows through the small lines before the sealant sets. I would get the new pieces of hose for the tank connections and just blow through them, thru the internal pipes.
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  #15  
Old 04-25-2011, 01:53 PM
is thinning the herd
 
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I am working on cleaning my tank for my '72 SL now, I just blow through the lines between each step.

I add a 4th step, I start by doing a few shakes and cleans with hose water and dish soap to knock off the easy to get crud, that way the $70 chemicals work on the hard stuff.

I am working on Step 1 (2) which is the KBS Aqua Kleen, my tank had a decent amount of flakes floating around in it.

If you can't find someone to do it, greyhound my girlfriend and I your tank, I'd be happy to do it for you.

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