I gather that the thing to do with SVO is to jump up the fuel line from 5/16ths to 3/8ths. A friend of mine did his using the original tank fitting, running a short length of hose to a 5/16 hose barb/male 3/8 pipe attached to a female 3/8 pipe/3/8 hose barb and then ran 3/8 hose all the way under the vehicle (a 300D) and just strapped it to the old steel fuel line.

His seems to work just fine -- maybe I'm being to fanatical in wanting to eliminate that short length of 5/16 line, I don't know, but it looks like you could just unscrew the hose barb fitting from the tank and if you could find a 3/8 hose barb fitting with the same thread, you'd eliminate some busy-ness.

Anybody done it that way?

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1986 300SDL, 362K
1984 300D, 138K

I have removed the screwed fitting from the tank strainer and cut off the crimped sleeve to remove a broken fuel hose. I replaced the hose and installed a screw clamp. Works fine.
I see no problems using a 3/8" hose barb with the correct male thread to suit the tank strainer.

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Tony from West Oz.
Fatmobile 3 84 300D 295kkm Silver grey/Blue int. 2 tank WVO - Recipient of TurboDesel engine.
Josephine '82 300D 390kkm White/Palamino int.
Elizabeth '81 280E, sporting a '79 300D engine.
Lucille '87 W124 300D non-turbo 6 cylinder OM603, Pearl Grey with light grey interior


Various parts cars including 280E, 230C & 300D in various states of disassembly.

Yeah, thanks. I need to hit the boneyards for some other stuff and I think I'll just take one out and use it to search for one with the 3/8 fitting. Hopefully, it exists somewhere within a 100 mile radius of me.

My friend did it his way because he avoided emptying the tank that way -- he just crimped the hose, cut it an inch downstream, and went from there. Hopefully, I can pull it off, running the tank down to near empty and just draining the rest.

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1986 300SDL, 362K
1984 300D, 138K