Oil cooler hose leak repair - Page 3 - PeachParts Mercedes-Benz Forum

d.delano · #31 05-29-2007, 02:25 PM

Quote:

Originally Posted by John Holmes III

I've been driving MB diesels for 22 years, and I can tell you that the number one cause for having a motor blow is a bad oil cooler hose. When that happens, a otherwise nice car turns into a $300 hunk of metal and glass, because the cost to rebuild a motor right is around 5k.

Super glue and silicone is not going to hold back a high volume of oil at over 45psi.

I second these sentiments. It took me less than two hours to replace the oil cooler hoses in my vehicle. I used OE Mercedes lines (Conti) and they went right in with no fuss. I just went on a 1k mile road trip full throttle(speeding ticket) and gave her hell. Why don't you just replace the hoses with the proper parts and sleep at night???? Why do you deliberate and waste more time and introduce more steps than is prudent by trying to juryrig the original worn-out parts, only to still wonder how well your ill-conceived repair will hold up????
Now if you are just trying to be a cheap bastard then I might understand, but you don't want to go experimenting with the oil cooler hoses. Install new OE and declare victory. Re-hosing your existing lines won't be significantly cheaper and likely won't last 20 more years like the originals.

vstech · #32 05-29-2007, 02:39 PM

Quote:

Originally Posted by d.delano

I second these sentiments. It took me less than two hours to replace the oil cooler hoses in my vehicle. I used OE Mercedes lines (Conti) and they went right in with no fuss. I just went on a 1k mile road trip full throttle(speeding ticket) and gave her hell. Why don't you just replace the hoses with the proper parts and sleep at night???? Why do you deliberate and waste more time and introduce more steps than is prudent by trying to juryrig the original worn-out parts, only to still wonder how well your ill-conceived repair will hold up????
Now if you are just trying to be a cheap bastard then I might understand, but you don't want to go experimenting with the oil cooler hoses. Install new OE and declare victory. Re-hosing your existing lines won't be significantly cheaper and likely won't last 20 more years like the originals.

check out some of funola's other posts, he likes to re-engineer stuff. more power to him!
John

d.delano · #33 05-29-2007, 03:15 PM

Well funola can do it however which way he wants of course because it is his car but I can tell you if he juryrigs it with super glue and silicone it will go from being his car to someone else's problem(or paperweight) in a hurry. It's not like he's in Apollo 13 floating disabled in outer space and running out of time and can't get the proper parts to do a proper job. Juryrig something else if you want to juryrig for the sake of juryrigging. If it's just because you don't have any money, you don't need one of these cars I can tell you that. Oil cooler hoses are too important to play around with and if you care you should just buy the OEs.

funola · #34 05-29-2007, 03:55 PM

Quote:

Originally Posted by d.delano

Well funola can do it however which way he wants of course because it is his car but I can tell you if he juryrigs it with super glue and silicone it will go from being his car to someone else's problem(or paperweight) in a hurry. It's not like he's in Apollo 13 floating disabled in outer space and running out of time and can't get the proper parts to do a proper job. Juryrig something else if you want to juryrig for the sake of juryrigging. If it's just because you don't have any money, you don't need one of these cars I can tell you that. Oil cooler hoses are too important to play around with and if you care you should just buy the OEs.

Why do you think "it will go from being his car to someone else's problem(or paperweight) in a hurry"?

You don't think replacing just the rubber hose sections with a hose rated beyond the temp and pressure limit of the engine oil and using 2 clamps at each connection is good enough? It seems quite a few people has done that successfully. Hey, if the cooler lines are $20 ea I would buy OEM, but not when they are $100 ea. Are you a worrysome person btw?

funola · #35 05-29-2007, 04:00 PM

Bump for d.delano

Quote:

Originally Posted by Hatterasguy

I used wire reinfoced exhuast hose for my SD. I also used regular hose clamps but just double clamped them. This was done in October and when I sold the car a few weeks ago it was still fine, its not my car anymore so if they blow its not my problem.

winmutt · #36 05-29-2007, 04:10 PM

Quote:

Originally Posted by funola

Why do you think "it will go from being his car to someone else's problem(or paperweight) in a hurry"?

You don't think replacing just the rubber hose sections with a hose rated beyond the temp and pressure limit of the engine oil and using 2 clamps at each connection is good enough? It seems quite a few people has done that successfully. Hey, if the cooler lines are $20 ea I would buy OEM, but not when they are $100 ea. Are you a worrysome person btw?

They are $50-60 on here. There are 4 things diesels require. Air, fuel, oil and cooling. You can run an engine hot but you cant run it without oil. Unless you like having to check your oil pressure gauge constantly or just dont care I would get quality rebuild or new.

d.delano · #37 05-29-2007, 04:22 PM

funola, listen dude, no fooling. If you want to sleep at night, if you want to be able to flog your car without fear, if you want to NOT have to eyeball the oil pressure guage every five seconds at speed, if you just want to be DONE with it, buy the OE hoses and be done with it. Then there will be no more problem, no more uncertainty.

d.delano · #38 05-29-2007, 04:24 PM

Quote:

Originally Posted by funola

Are you a worrysome person btw?

I certainly don't go through life not worrying about anything. I got friends who do that and they got big problems.

Knightrider966 · #39 05-29-2007, 04:30 PM

Quote:

Originally Posted by funola

Of of the oil cooler hose is seeping engine oil at the rubber to metal line crimp. It's the crimp that's right next to the A/C compressor. I woulda just replaced the line but it looks like a not very pleasant job so I am trying an easy way out. I sprayed it with brake clean, blew it out with compressed air, repeat a few times, then dribbled some crazy glue in there, let it set a while then applied RTV. I am letting it cure overnight and see if it works or not. Will report back.

Whoa!! what are you thinking?? You did great with the RPM sensor repair But this is just a totally brainless blunder! Your engine will be destroyed when this sucker just pops and it will be on the left lane of the freeway with not an offramp in sight at 11:00 PM! Just go to NAPA if you have to with your old hose and they can make you a new one right there on the spot. NOTHING but a new hose will hold oil pressure!

#40 05-29-2007, 04:31 PM

IMHO, a little hillbilly engineering of non-critical systems is OK if you want/need to save a few dollars, but using anything short of using the correct OEM oil cooler hoses is just about the dumbest thing you can do with your pants on. I replaced my hoses the first time they looked like they were thinking about starting to leak. Find someplace else to save money.

funola · #41 05-29-2007, 04:34 PM

OK delano , what if i get a hose rated for 3000 psi and 300F, put 2 hose clamps at each connection, pressure test it to 500 psi, and if it does not blow, will I then be able to flog my car without fear, and NOT have to eyeball the oil pressure guage every five seconds? Will there will be no more problem, no more uncertainty?

Quote:

Originally Posted by d.delano

funola, listen dude, no fooling. If you want to sleep at night, if you want to be able to flog your car without fear, if you want to NOT have to eyeball the oil pressure guage every five seconds at speed, if you just want to be DONE with it, buy the OE hoses and be done with it. Then there will be no more problem, no more uncertainty.

Knightrider966 · #42 05-29-2007, 04:37 PM

Quote:

Originally Posted by funola

OK delano , what if i get a hose rated for 3000 psi and 300F, put 2 hose clamps at each connection, pressure test it to 500 psi, and if it does not blow, will I then be able to flog my car without fear, and NOT have to eyeball the oil pressure guage every five seconds? Will there will be no more problem, no more uncertainty?

NO! There might be no leaks at static pressure at 500 psi, but when it shaking back and forth in the engine compartment that is another story! Look, if the cost bugs you, just go to NAPA and with your old hose and have them make you a new one! Most of the time they will do it while you wait and your only looking at about $40.00!!!! Find somewhere else to save your dough!

A rebuit engine runs around $5500.00

If what your proposing was a quality part or repair, do you really think those engineeres wouldn't be doing that in the first place?

funola · #43 05-29-2007, 04:47 PM

Actually, if i can get the lines off easily, I can get new hoses crimped on at a hydraulic shop for nothiing. But geting the lines off the filter housing is a PITA from what I read. One of the nuts is difficult to get off and the engine mount and shock has to be undone and the engine jacked up in order for the lines to come out.

Quote:

Originally Posted by Knightrider966

NO! There might be no leaks at static pressure at 500 psi, but when it shaking back and forth in the engine compartment that is another story! Look, if the cost bugs you, just go to NAPA and with your old hose and have them make you a new one! Most of the time they will do it while you wait and your only looking at about $40.00!!!! Find somewhere else to save your dough!

A rebuit engine runs around $5500.00

If what your proposing was a quality part or repair, do you really think those engineeres wouldn't be doing that in the first place?

d.delano · #44 05-29-2007, 04:48 PM

Quote:

Originally Posted by funola

OK delano , what if i get a hose rated for 3000 psi and 300F, put 2 hose clamps at each connection, pressure test it to 500 psi, and if it does not blow, will I then be able to flog my car without fear, and NOT have to eyeball the oil pressure guage every five seconds? Will there will be no more problem, no more uncertainty?

that would be much more hassle than just buying the damn OEs and installing them!

Eric Eliel · #45 05-29-2007, 04:52 PM

This thread is filled with the most ghetto repairs I've ever read about.
You can ghetto repair your windows, a/c, sunroof and door locks, but the oil cooler lines.......youse be on borrowed time.