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#1
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How to turn engine for valve adjust?
So, I'm trying my first valve adjustment on a 1982 300TD, and have had problems turning the engine manually.
I would like to do this via the crankshaft bolt, but getting in there is tough! I've got a 27mm socket, a variety of different extensions, fishing it around the fan shroud, between the fan blades, but I don't feel a nut to seat onto...is the fact that my 27mm socket not a deep-well the problem? This method seems disadvantageous as you are adjusting on top of the engine and turning underneath the car--back & forth... I also tried turning with the power steering nut, but it was very tough going, and after a few short moves finally gave up in fear of damaging the bearings on the pump. Note: I didn't have the valve cover off when trying this. Could that be a problem? The electric method of moving the engine seems inexact to me. Anyone with experience in this regard? Thanks! |
#2
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A deep 27mm socket and 1/2" ratchet will fit on the crank bolt perfectly.
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#3
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no extensions needed.. just the 1/2" ratched and some patience...
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#4
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A standard-depth socket with a short (1.5") extension bar works for me. It takes a little effort to get the socket in and onto the crankshaft bolt. But it works.
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#5
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Let's see if I've got this right:
The Crankshaft bolt sits at the back of that giant pulley at the bottom of the engine with the four belts or so coming off of it, almost flush with the black plastic fan shroud? Since there's hardly room to get even the width of the socket wrench in between the fan shroud and the edge of the pulley, the distance from the wrench to the nut has to be exact, or it won't work, right? |
#6
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I've always used a crescent wrench on the power steering bolt. Was your car in gear?
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
#7
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Quote:
We used the power steering bolt on surf's car but I'm weary of it on my car.. Last time I tried it the belt didnt turn.. I need to tighten it. |
#8
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You can unclip the fan shroud and move it out of the way.
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#9
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I always remove the fan and fan shroud to gain access. It adds about 10-15 minutes to the job but is worth it.
If you do remove the fan, don't forget to put one of the fan bolts back in afterward to keep the water pump pulley in alignment as you turn the engine... |
#10
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if you are going to remove things why not the GP. wouldn't that let you turn the engine alot easier?
__________________
-Trevor OBK #12 1980 300SD 333,XXX miles - Totaled 1986 Mazda RX-7 212,XXX miles - impounded and auctioned off 2005 Jeep Liberty CRD Limited 33,000- SEGR, Provent, Fumoto |
#11
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Quote:
But, the length of a 27mm deep socket mounted on a 1/2" ratchet wrench will be the perfect distance. You'll need to shove the socket up between the shroud and the pulley and then rotate the socket into position to snag the 27mm bolt. Once you do it the first time, it's not difficult. |
#12
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Hi. Rig up a few feet of 10 Ga. wire and a heavy duty push button switch. Fasten a good alagator clip to the wire ends and clip in to the battery hot side and the starter relay. As the cam turns half speed to the engine it turns quite slow on the starter and a couple of cliks will put the cam lobe in the correct position. This makes the valve setting job a lot easer. Also the engine will turn the correct direction, always a good thing.
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1984 300SD turbo 126 "My true love" God made me an atheist and who am I to question His wisdom |
#13
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Yeah, I'd get a remote starter. Best $12 I've spent in doing valve lash.
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I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] |
#14
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I've always used the key to turn the engine. Of course I use it in the ignition not on the crank. How's that remote start fit on the 27 inch socket?
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Closing the store Benzbonz.biz on your smart phone or tablet. |
#15
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Go with previous post. Or do as The Gears suggestes. Yet use the junction box located on the passenger inner fender. #1 and #3 connect those two and, viola, the starter turns. I have two of the "bump" starter trigger things. One of them for the SD needs to have a small alligator clip vs the wide clip that came on the end of one of the two.
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83 SD 84 CD |
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