on my 87 SDL... i have 'patched' the metal diesel lines 2 times (with rubber tubing slipped over cut out section)... well i have another leak and i have a rotting brake line im replacing as well as the 2 rubber exit/entry lines to tank and return. im thinking of replacing them with clear POLYETHYLENE tubing (sold at home depot, menards etc). not only is it signifigantly cheaper but more importantly i can see the fuel flow so ill know if i have an air leak or a clog. has anyone done something similar? i got tubing with a 3/8" ID (cant find 5/16" anywhere. i got a 3/8 barb into the new rubber tank fitting (bought those new genuine MB) and will use that to connect to the 3/8th polyethylene tubing. ill do something similar (barbs or compression fittings have to figure that out still) when it comes to the fuel filter. im having a hard time finding J30R9 (viton hose) for plumbing the IP/filter etc. Mcmaster no longer sells it and looking online neither does orielly, autozoo, advance (at least around me). im also cleaning the tank screen as a good measure. so here are my questions:

1: will 3/8" polyetylene tubing work as replacement diesel lines? (i cant find anything that says it wont)

2: where can i find or order viton J30R9 (most links in other threads are to biodiesel sites, some are dead links)

3: what size it the oring on the tank screen? yes its available on the forum parts store but its an .80 cent part... id rather not pay shipping on that. im thinking i can get it thru mcmaster or the hardware store... id like to source it before i finish getting it all torn apart.

Thanks,
Ron

__________________
1987 300SDL "Rudolf" 239k 8/10


Gone but not forgotten
-1980 F250 4X4 351C Snowplow "The Beast"
-1976 Caddy Eldo Convertible, in triple red. "Red headed Slut"
-2002 Honda Accord EX-V6 loaded 107k, My first brand new car!


*IM A HORRIBLE SPELLER*

People have been posting that the Fuel Injection Hose SAE J30R9 or 30R90 SAE 30R9 can be bought at regular parts places like Autozone. If not there NAPA (National Auto Parts).
Someone on eBay might even sell it.
The whole hose is not Viton, it lis lined with a materilal others said is the same as Viton and is called Fuel Injection Hose.

As far as other types of Hose material goes you simly need to look up a Hose company that sells that and there sould be a description of what it is made for and how much heat it can take and so on.

__________________
84 300D, 82 Volvo 244Gl Diesel

Here is a guy on eBay selling it but it is $5 per-foot

E85 Ethanol Biodiesel Alcohol Fuel Injection Hose 5/16" | eBay

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84 300D, 82 Volvo 244Gl Diesel

ok thanks, ill try walking into a few parts stores in the neighborhood but i havent found it listed on the stores websites.

how about the polyethylene tubing? anyone know anything about that?

__________________
1987 300SDL "Rudolf" 239k 8/10


Gone but not forgotten
-1980 F250 4X4 351C Snowplow "The Beast"
-1976 Caddy Eldo Convertible, in triple red. "Red headed Slut"
-2002 Honda Accord EX-V6 loaded 107k, My first brand new car!


*IM A HORRIBLE SPELLER*

Your rotting brake lines, you will not replace them with rubber fuel line.

There is a trememdous amount of pressure in the lines when you apply the brake peddle. firt time you used the brakes, the hose will blow off, peddle will hit the floor, and you will be going for a wild ride. and hope you don`t kill some one or your self.

Fix it correctly with steel brake line with the propper fittings.

Do a search on replacing steel brake lines. here is one I found quickly

http://www.peachparts.com/shopforum/diesel-discussion/253687-hard-brake-line-repair-replace.html




Charlie

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

no no no... i know i have to replace the rotting brake lines with steel... i also have to replace my rotting diesel lines... there is where i want to use the polyethylene

__________________
1987 300SDL "Rudolf" 239k 8/10


Gone but not forgotten
-1980 F250 4X4 351C Snowplow "The Beast"
-1976 Caddy Eldo Convertible, in triple red. "Red headed Slut"
-2002 Honda Accord EX-V6 loaded 107k, My first brand new car!


*IM A HORRIBLE SPELLER*