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Old 08-09-2010, 05:41 PM
toomany MBZ's Avatar
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Join Date: Nov 2006
Location: central Va
Posts: 7,820
Originally Posted by Beastie View Post
Again! toomany MBZ has come to the rescue. Now I do not feel so bad since you helped me with this same thing 3-4 weeks ago. Even the nice kid at the local MBZ dealer kept telling me that my car should only have one O ring until I stepped behind the counter and showed him on the screen. I still have some fuel weepage but no longer from the top of the fuel filter. I need to replace all fuel lines. I know that more than a few of these are original.
You and toddyvol are welcome.
If you get the chance, replace the fuel lines with what you can buy here, using the buy parts button.
The crush washer can be any material that is impervious to diesel fuel and can form to the housing when torqued a bit. Aluminum works as does a composite gasket I bought at the local hardware store, a number 30 cap thread gasket, #35566B, outside diameter doesn't matter. The one I drew arrows to came out of that plastic bag, it's gray in color.
The epc the dealer uses is better than the one available to us, but is just as confusing, so it seems.
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Fuel filter O-ring-f-f-bolt-gasket-number.jpg  
83 SD

84 CD
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Old 08-10-2010, 12:32 AM
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Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,585
Originally Posted by toddyvol View Post
Looks like mine is the 01 style.

Is it possible to update it to the 02 version and if so is there any advantage to doing so?
It`s easy to update to the later style. go to the JY, PNP etc... and pull one from a 82 to 85 300D. I know for sure 84 & 85 have them. Just a simple R&R. I installed one on the 80 240D. never leaks or causes me any trouble. when it does weep, I just change the "O" rings. I probly should change at every filter change, but don`t.

I think the "O" rings are a better design than the crush washers. after while they gouge into the aluminium seat of the housing causing it to seal w/o a ton of force on the bolt to stop the leak.

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
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Old 08-10-2010, 08:23 PM
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Join Date: Jun 2010
Location: Southeast New Mexico
Posts: 16
How to edit photos

Thanks to both koya1893 and diesel911, I tried editing phots using both of your suggestions and they are equally impressive. Once again another man's knowledge is shared to help. I appreciate you guys!

"Sometimes all you need is a little help"
'81 240D sold
'83 300D 96k
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Old 08-10-2010, 10:26 PM
Diesel911's Avatar
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Join Date: Sep 2007
Location: Long Beach,CA
Posts: 25,191
Originally Posted by toddyvol View Post
Thanks for the photos. Mine is indeed the second one. The crush washer is copper?

If it is indeed copper I guess I'll need to go shopping again. I have a lot of copper washers but none that large.
According to my old Bosses Navy Machinist Mates Manual if you heat a Copper Washer red hot and cool it; it can often be reused if it is not to mangled up.

Heating it softens it. With Copper it does not matter if you cool it fast or slow so just dunk it in water.

There has been times at work when I took a round file and enlarged the hole in a Copper washer to make it fit.
Sometimes it is also possible to stretch them a little by sliding them over a tapered Punch and using a Deep Socket to push down on them and enlarge the ID.

None of the above works with Aluminum Washers.
84 300D, 82 Volvo 244Gl Diesel
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Old 08-11-2010, 08:18 AM
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Join Date: Dec 2005
Location: Los Angeles, CA
Posts: 234
on the E300 and i know your car is different (but just for the record)
let me say that the big FF doesn't have any O ring
but the smaller pre filter DOES have one that slides up..

Phil just sent me 2 of these O rings w/my last order
so i'm basically a happy camper
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Old 07-24-2013, 04:16 PM
Lurker Since 2006
Join Date: Jun 2006
Location: Apalachicola Natl Forest, FL
Posts: 87
Originally Posted by Diesel911 View Post
Autozone sells a Metric O-ring assortment made by Dorman for less than $8.
Dorman 172 piece O-ring Value Pack #799-450
In it are 24 of the 6mmUDx10mmODx2mmW O-rings that you need for the bottom of the Oil Filter Stem: enough for 12 Oil Filter Changes as you need 2 O-rings each time you change it.
The 10mmIDx17mmODx2.5mm in the kit fits the bottom of the Filter Bolt; you get 24 of those in the kit.
The 14mmIDx19mmODx2.5mmW appears to fit the large upper O-ring (if you have the Filter Bolt that takes 2 O-rings) but I have not actually tried that yet.

You get a total of 172 O-rings in various sizes.
Holy thread revival, Batman!

Just wanted to bump and confirm the above information is accurate. The 14x19x2.5 is indeed good for sealing the top of the later two ring banjo bolt. Got my metric value pack from AutoZone, 6.99 was my local price.

Now after a few miles of running, I have a dry filter head, and no wasted go juice on the ground.
1985 MBZ 300D (DD, 240k, unmuffled hellion!)
1982 MBZ 300D (372k, retired for parts)
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