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#1
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1985 OM617 Head leaks oil
The head on my 85 300D is leaking a small amount of oil at the front corner, near the fuel filter housing, as well as at the back of the motor near the fire wall.
Would it be okay to loosen and re-torque all the head bolts? Should i just try checking the torque on the bolts WITHOUT loosening the bolts? Im thinking it might stop the small leaks. Thanks
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#2
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I would check the torque on the head bolts. I haven't looked at the FSM for the 61x series(wish I had kept my hard copy of the FSM) But I think the bolts are torqued down and then angular torque is then used.
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#3
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Should i loosen the bolt first, and then torque it down to spec?
Im gonna heave to research angular torque, havent heard of that before.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#4
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Quote:
I tried this on a 95 E320 wagon, and it did slow down the leak by about 90%. Still wasn't good enough for me so I had it all changed.
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1985 500SL Euro w/ AMG bits 130k 1984 300SD Turbodiesel 192k 1980 240D Stick China 188k 2001 CLK55 AMG 101k 2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!! |
#5
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Im gonna look into getting the correct torque specs for the head bolts.
Anyone have one of those special 12 point keys to fit the head bolts i can borrow? or can i get one at a local parts or tool place?
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg |
#6
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I know this is rhetorical, but... let's say you don't loosen them.
What would you do if your torque wrench clicks and does so without any movement? I wouldn't dare try the turn procedure on top of that. Who knows where your bolt preload is after that. Torque, then turn does decrease the range of preloads if done properly, but, you really need to know what you're doing. Honestly, I wouldn't bother with trying to retorque them. I can only imagine the world of hurt if you disturb the 'happy balance' between all of the bolts. Angular torque? Never heard it called that before... Angle control or "turn of the nut" are more appropriate.
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1982 240D, sold 9/17/2008 1987 300D TurboW124.133 - 603.960, 722.317 - Smoke Silver Metallic / Medium Red (702/177), acquired 8/15/2009 262,715 and counting |
#7
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Quote:
But I'd invest in something made by craftsman at the least for this type of tool or OEM. I am not sure if Snap On or Mac Tools has them. Sears: Online department store featuring appliances, tools, fitness equipment and more 10mm triple square(long) Sears: Online department store featuring appliances, tools, fitness equipment and more 10mm triple square(short) each are about $4 each. Made by VIM and I believe they are made in the USA Looking on their website they seem to make a lot of XZN/specialty drivers for VW/Audi cars. Glad I don't have one of those things, then I'd have to invest in a ton of XZN drive tools! Quote:
yeah, that... "torque to X ft/lbs, then 90 degrees, etc" |
#8
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I bought one of those tripple square bits from the Mac tool guy when I pulled a head back in 07.
I wouldn`t cheapen out on this tool. 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 |
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