I thought photo's would help anyone else doing this repair. The non broken nipple was easy. Cut the old threads off, drill a 21/32 pilot hole, tap with a 18 x 1.50 tap, screw in the new steel nipple. The material at the broken location was thick enough to get about two threads tapped in. It did tighten down pretty good. The area around was reinforced with JB Weld. Thanks to all that replied to my post with great info. Hope this link works. http://www.peachparts.com/shopforum/members/jdr01-albums-oil-cooler-nipple-rapair.html

Excellent. fear of this issue is why my two new oil cooler lines are sitting on the shelf. care to share the cost??

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.

Thanks for the info! It's not the end of the cooler when the threads are damaged. I would be careful to not get any metal filings in the cooler if possible.

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Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles

New "screwed nipples" (god, I love that!) are about $5 each at the dealer.

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Bob
'82 300D Petrol B-G Metallic

Happy to hear you are all fixed and back on the road.

Thank You for posting the pictures of the repair.

Might not be a bad idea to have a set of the screwed nipples on hand so we are not in a panic when this happens to one of us. I doubt the dealers have them in stock.

Charlie

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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

The nipples were less than five bucks and came to the dealer the day after I ordered them. However the hose side of the fitting that broke was a problem and costs $70. The aluminum threads were stuck into the steel female side. I could not pick them out. I heated the fitting and they still would not come out. So now I wait again for parts.

jdr01,

Good work on saving your cooler.

I hope that lower fitting holds. If I were you I'd do a search on "oil pressure alarm" and get one installed. I'd be nervous about that lower fitting letting go and having catastrophic oil loss.

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Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys

so you were removing the lines because??- I only ask because you state that the hose was damged- , and needed to be replaced- so I guess you were not changing the lines?

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.

Concur. Welding the lower fitting back in place would have resulted in a much better repair.

I picked up a used Oil Cooler at PNP a couple months ago on the 1/2 price sale. think it was $9.99. might be good to have a couple of extras on hand.

That lower fitting is a little thin on meat, I agree on the welding it back on.

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

First, nice job on the repair.
Second, why don't you find a good used oil cooler, either at a salvage yard or from somebody here on the forum. There is just too much riding on the integrity of the oil system to rely on 2 threads!
Please don't take this as a criticism, just an opinion.

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Excellent pictures, thanks for sharing. I agree with others, if it was my vehicle, I would find another oil cooler and do it again given the risk of failure. I have a spare cooler from a pnp; if you've no alternatives send me a pm and I'll ship my spare down to you for few $.

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83 300d - 390k

I took the hoses off to pull the engine. Pulled the engine to replace the oil pump chain. The lower hose should be fine. As I said the material was thick enough to get a couple threads on with the tap. It tightened down fine. The JP was just a little extra support and thread sealer. If it goes I will use another one.

I think what most people are saying that if it goes you may not only have to worry about replacing the cooler, you may have to worry about replacing the engine as well. You can dump your oil pretty quick without knowing that anything has happened and take out your engine.

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD

Thanks, but I will wait and see if the engine is OK after I start it again. The oil pump chain went, and it shut down imediatly. However I will wait to see if there are any problems with it before spending any more time or money on it.