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#1
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When is an oil leak not an oil leak?
Thought I had an engine oil leak in the '85 300D-T (W123, OM617). Put the front end up on ramps, sprayed the underside with engine cleaner and hosed it off. Looked all over underneath, couldn't find anything except it appeared to be mostly on the left (driver's) side. Tightened the lower oil-pan screws, the uppers were tight. Checked everything else I could get at including the oil filter cannister. No obvious source for the leak.
Leak continued, getting worse. Took the car to my indy for a check (I'm getting the car ready to sell), asked him to look for the leak while he was going over the car. Turns out it was a biodiesel leak -- the injector return hoses are bleeding biodiesel through their walls, not having been updated to Viton (I have a kit on order). I had suspected a slight leak but it was a lot worse than I realized. The biodiesel has been oozing down the left side of the block, dissolving the 20-year-old coating of oil and dripping onto the drip pan, looking like an oil leak. The wrench will change the return hoses, clean off the mess, and make sure there are no more leaks. I'll change the return hoses to Viton when the kit arrives and that will be that. I pass this learning experience on so the rest of you don't have to repeat my stupidity. Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#2
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Been there and thought that. It drips down the engine and mixes/cleans off oil on its way down and ends up looking like an oil spot.
Perfectly understandable.......
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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 |
#3
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viton is not needed though.
a fresh set of standard return hoses will give you great service for a good long time. those hoses sure do make a mess as they weep.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#4
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I thought this thread was going to be about when a small leak is enough to be considered a problem..
I have a small leak on the oil cooler line where it connects to the canister. If you clean it you can drive it 100 miles and it you cant even see it. Its just enough to collect dirt
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1981 300SD 512k OM603 |
#5
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Quote:
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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 |
#6
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its at the metal fitting to the oil filter housing. No rubber is involved
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1981 300SD 512k OM603 |
#7
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If tightening it up doesn't stop it, you can get new "screwed in nipples" at the dealer that go between the cooler line fitting and the filter housing. Maybe your lines were replaced before and the nipple got "galled".
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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 |
#8
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Good long time = 1 year
The little jumper hoses were last replaced in June 2007 and probably should have been replaced a few months ago.. So, it looks like a year is absolute max lifetime on a steady diet of B100 biodiesel, maybe longer on blends.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#9
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I've read that you can use urethane hoses as well as viton or viton lined hoses.
EDIT: Here's the thread where I read it and the member posted links where you can get it: http://www.peachparts.com/shopforum/showthread.php?t=223934&highlight=urethane+hose
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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 |
#10
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The source at that link is US Plastics. A product that looks interesting is "Urebrade(R) Reinforced Polyurethane" here. Has anyone here actually used stuff like this with B100?
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#11
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Looks like the stuff you see at Home Depot.
Temp range is kinda skimpy for underhood use. Sixto 87 300D |
#12
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Yeah, 175F is not too great. I wonder how this stuff would do after a year of being exposed to an underhood environment? Sixto, why don't you do an experiment, get some, put it on your car, let us know how it goes.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#13
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The stuff in the second link is rated for 220˚
http://www.shopprocycle.us/productdetail.htm?productId=5362260&catalogId=&searchProducts=fuel%20line
__________________
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 |
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