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Filter in the Fuel Tank

Started by jtwoods4, 01 September 2012, 07:34 PM

nathan

#30
whats wrong with petrol on the garden? as long as its 98 octane, its good for everything. i have some with my tea every morning! :)

im guessing you wouldnt approve of the MT and Nathan method of degassing aircon systems. i know TJ doesnt!

its almost as amusing as our method of spring removal from 126s - MTs hip still hurts! :)

found this site
http://www.samstagsales.com/mercedes.htm
is this stuff relevant for such tools?
1979 116 6.9 #6436
2018 213 e63
2011 212 e63
2011 463 g55
2007 211 e500 wagen
1995 124 e320 cabriolet
1983 460 300gd
1981 123 280te

Casey

Quote from: TJ 450 on 03 September 2012, 11:09 AM
Yep, there's a different strainer for petrol vs. diesel. From memory the petrol version has "benzin" embossed on it.

Confirmed!

gavin116

The petrol version is:

Fuel Strainer MA201 470 04 06
1979 450SE "Mrs White"
2022 Touareg-R 3.0TSi Hybrid
[url="http://forum.w116.org/test-drive/my-first-w116-here-at-last/"]http://forum.w116.org/test-drive/my-first-w116-here-at-last/[/url]
[url="http://forum.w116.org/the-org/british-near-london-meet/msg97613/#msg97613"]http://forum.w116.org/the-org/british-near-london-meet/msg97613/#msg97613[/url]

curbill

You can get a 1 13/16 american socket and weld a bolt on it. The use of a socket is not as easy as you mite think. Mercedessource takes a socket and welds a cut off bolt so that you can use a 17mm wrench or a 17mm socket on it. If you get a 3/4 42 mm socket it is a pain to use as there is a metal going across where you want to put the extension on. Another thing that comes in handy is a flare crowsfoot. I believe that is a 17mm also. A regular crowsfoot tended to slip off the hose connection. Your best bet is to pump out the tank also.

Tony66_au

And THIS is why I left mine alone lol

And honestly id be tempted to just see if I could destroy the thing in situ through the sender hole and leave it out.

I have done more than my fair share of in tank/pre pump filters and always removed them from the equation.

If anything I do fuel filter changes a little more often, usually when i do plugs etc at around 30'000 km and if the tank HAS sediment then I flush it out and chuck the fuel or strain it and run mowers etc on it.

You can make a simple vacuum device to Hoover the bottom of the tank by purchasing 12 feet of clear PVC hose and about a foot from the end punching a hole and inserting an air blower nozzle in the hole with the end of the air nozzle pointing to the end of the hose.

Then simply pop the other end of the hose into the tank via sender hole and get someone to slowly apply air via the blower nozzle.

This will create a vacuum which sucks the fuel up the hose and once the hose is full of fuel it will with gentle air application syphon fuel at a rapid rate with the help of gravity and air allowing you to vacuum the tank out.

The added bonus with the 116 tanks is its height and I usually use a large catch tray to run the fuel into.

The clear PVC hose also shows the muck vacuumed out so if you cant see what you are vacuuming then you can see the results via the hose.

Id do this in cooler weather too as the fumes can ignite off the weirdest things and be gentle with the air application as the hose will spray fuel out the end every time you hit the nozzle with air.

I have also jigged this up using an old/spare EFI pump but they dont cope with "Chunks" although they do work better and if you do this the pump MUST be as far away from the fuel as possible so id use 2 x 12 foot lengths of hose so there is distance between you, the pump and the end of the hose which can be fed into a jerry can or similar.

I also used to rinse with Race ethanol but its flash point is very low so I switched to using Methylated spirits instead for the final rinse and id blow it out of a parts wash gun and then drain with the pump before refilling with fuel.

Metho is Ethanol of sorts and any small amount left will mix in and burn off with no ill effects.


Hope this helps!

Tony

oversize

#35
I agree with pumping the tank.  If the filter is almost completely blocked and you try to pull it out you'll just get a fuel shower!  And a huge waste of $$$$ literally down the drain!

The only prob with removing the screen is it's the only protection for the pump.  The filter is post pump n not pre.....
1979 6.9 #5541 (Red Bull)
1978 6.9 #4248 (Skye)
1979 6.9 #3686 (Moby Dick)
1978 6.9 #1776 (Dora)
1977 450SEL #7010 white -P
1975 450SEL #8414 gold -P

Tony66_au

True and I noticed that when I did my recce and lazed under the car Effing and Blinding at the dick who designed the system incorporating the 44mm.

So here is my conclusion on the whole matter!

IF you car is well kept the crap will be small if at all and most electric pumps can handle it fine.

MY concern is the injectors.

wacotech

Quote from: Casey on 01 September 2012, 10:25 PM
Quote from: Casey on 01 September 2012, 10:10 PM
Quote from: philpot on 01 September 2012, 08:29 PM
The outlet on my 280S tank looks very similar. Do the petrol cars have this filter also?

Yes I believe they do.  I have a spare 280E tank I can check tomorrow, if that part's still intact.

Check that - I was curious so I just went and checked.  Yes, it's there.  I don't have the "special" tool (which I believe is just a 42mm socket from memory - I only have up to 36mm presently) so I couldn't pull it, but I stuck a screwdriver into the hole and felt the inside of the filter (I also have a new filter so am familiar with them).  I am not sure whether it would be the same part number or something different for the type of fuel, but the size seemed to be the same as the diesel ones.
That where careful use of something like these comes in:


Why buy special tools when they are not needed?

oversize

Unless the tank is out, a set of multigrips will be far too big to fit in the space available
1979 6.9 #5541 (Red Bull)
1978 6.9 #4248 (Skye)
1979 6.9 #3686 (Moby Dick)
1978 6.9 #1776 (Dora)
1977 450SEL #7010 white -P
1975 450SEL #8414 gold -P

Big_Richard

#39
.

s class

I seriously thought its a 46mm socket.  I have one sufficiently thin-walled that I regularly change these units in-situ on 107, 116, 124 etc. 


[color=blue]'76 6.9 Euro[/color], [color=red]'78 6.9 AMG[/color], '80 280SE, [color=brown]'74 350SE[/color], [color=black]'82 500SEL euro full hydro, '83 500SEL euro full hydro [/color], '81 500SL

John Hubertz

John Hubertz
"When the going gets weird, the weird turn pro."
(Hunter S. Thompson) 

1977 450SEL (Max Headroom)
[img width=68 height=73][url="http://i48.photobucket.com/albums/f248/fullhappyfish/max.jpg"]http://i48.photobucket.com/albums/f248/fullhappyfish/max.jpg[/url][/img]

oversize

1979 6.9 #5541 (Red Bull)
1978 6.9 #4248 (Skye)
1979 6.9 #3686 (Moby Dick)
1978 6.9 #1776 (Dora)
1977 450SEL #7010 white -P
1975 450SEL #8414 gold -P

Casey

Quote from: Tony66_au on 08 September 2012, 04:10 AM
So here is my conclusion on the whole matter!

IF you car is well kept the crap will be small if at all and most electric pumps can handle it fine.

The problem is not stuff getting through the filter - the problem is when the filter is so clogged that your car dies when there's still over a quarter tank of fuel left, because the only place fuel can get through the filter at all is at the top.  This is the case on my 200D for which I bought a new filter for.  But then I decided that I'd like to replace the smaller-capacity plastic tank with a high-capacity metal one from a 280E.  That however was full of rust and sludge and now I need to figure out how to properly clean it out and treat the interior to prevent this from happening again, but then again I think rust may be a gasoline-specific problem and if I use diesel in it I'll be okay.

Anyways, just revisiting this thread because I found a nice shallow 42mm socket on eBay that somebody may want:


It's 11GBP:  http://www.ebay.com/itm/360487909435

Or if you like spending too much money on tools, a nice six-point Hazet socket is available for $76:  http://www.ebay.com/itm/170904680112
Why are Hazet tools so expensive???

I don't understand why anybody likes 12-point sockets and box wrenches; I always try to get six-point.  Unfortunately the Craftsman brand sockets are only available in 12-point for the larger sizes.

Tony66_au

12 point is a far better fit.less chance of slipping