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#1
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Valve adjustment on 617, how often?
I just did my valve adjust this weekend. its been about 10K since the last time. there were only 6 out of spec a couple by .002 and a couple by .004. I let the .001 out of spec go since I cant usaully get them perfect anyway. this was about the same as last time. is .002/.004 out on a few valves commen for most people?
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1982 300CD Turbo (Otis, "ups & downs") parts for sale 2003 TJ with Hemi (to go anywhere, quickly) sold 2001 Excursion Powerstroke (to go dependably) 1970 Mustang 428SCJ (to go fast) 1962 Corvette LS1 (to go in style) 2001 Schwinn Grape Krate 10spd (if all else fails) |
#2
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10k is a bit soon. I do it every couple years...or every 20k or so....whichever comes first. I'll probably do one on my 300SD soon before it gets too cold....even though it seems to be running/starting perfect as it is.
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#3
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FSM generally recommends 15k
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TC Current stable: - 2004 Mazda RALLYWANKEL - 2007 Saturn sky redline - 2004 Explorer...under surgery. Past: 135i, GTI, 300E, 300SD, 300SD, Stealth |
#4
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when mine are really off (from limited experience) they like to be readjusted after 500 miles. Then they stay as expected.
Don't forget turning them causes large variances in tightness. |
#5
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What is the sympton for lack of valve adjustements?
I have not adjusted my 83 300D for over 27K miles since I had it and do not know when it was last adjusted by the PO. The car still runs smooth and strong. I would like to do it but I just procratinate as there are other pressing issues.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#6
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Quote:
27k with no idea of the previous owner's maintenance is way too long. Get on it!
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#7
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To add to above....When I did my valve adjustment for the first time, I realized it made the engine significantly quieter as well.
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TC Current stable: - 2004 Mazda RALLYWANKEL - 2007 Saturn sky redline - 2004 Explorer...under surgery. Past: 135i, GTI, 300E, 300SD, 300SD, Stealth |
#8
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DO NOT let your valves go that long, it will cause bad things to happen to your cam.
I do it once a year right about this time. In fact I am due for valve guide seals as well. If your valves come out of spec frequently it might be a good idead to replaces your nuts (heh).
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42 |
#9
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just bent an exhaust valve...
...cuz I went over 15 (think I was at 22K or so). Not fun doing a head removal!
Track your mileage, and stay on the oil changes and valve clearances!
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Peter 1985 300TD 4-speed 212K 1992 400E 343K 2001 E320 72K |
#10
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Valve adjustments are not that big of a deal to do.
I use to have VW`s and think they are every 12,000 miles And my 82 Datsun with the SD-22 Nissan Diesel engine, is every 12,000 mi. the Datsun and the VW are similar in the adjustments. the mercedes is a little more complicated, but very doable. The hardest part on the mercedes is getting the valve cover on/off. always hangs up on something, then the gasket falls off. about the 3rd or 4th time, I win. Maybe since my timing chain fiasco Iam a little more on edge, checking, and bonding with my baby . Not that big of deal, just do it. 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 |
#11
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Quote:
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2007 BMW 328XI |
#12
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Unless they're getting noisy or the engine isn't running right, 15K is way too often IMHO. My first 240D, a 77 that I bought new went 280,000 miles and I only adjusted them once. The turbo engines probably need more attention than that, but it's not as if the engine will blow up if the valves are a thousandth or two off.
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#13
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To echo Larry's experience our '74 240D never had a single valve adjustment in nearly 200K miles of driving as best as I could tell. It was more out of ignorance than neglect. When we bought the car (new in '74) the dealer said, change the oil frequently (every 3K miles) and fuel filters much less frequently and that's all it will ever need and that is all we ever did. In fact, I don't even recall ever changing the fuel filter. Of course now I know better but it goes to show that they can easily go well over 15K miles between adjustments
Realistically, if you did it every 30K it would probably be just fine with one caveat - if you do an adjustment and find the valves to be extremely tight then re-doing it after 500-1000 miles isn't a bad idea - but after that I would still go 30K before checking them again.
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz |
#14
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I didn't use any "special tools" I did end up grinding down one 14 mm open end wrench a tad, if that now makes it a special tool . . . my 240 only needs a 13 mm to remove the vc nuts, and 2 - 14mm for the valves . . .on the one valve that started to spin, I just held the edge with a screw driver like a wedge while loosening the 14mm's . . .
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82 240D Manual 277K and still rolling! 02 Volvo S60 AWD For Sale |
#15
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Just checked the valves on the 300TD- after 25k since the last adjustment, they were all still in spec.
Guess I should be thankful, but the whole process should reward you with a little work at least. This isn't always the case, however, my old sedan had very tight clearances after 12k.
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I-------------------------------------1981 300TD, Thistle Green, 140K------------------------------------I
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