1984 300DT; changing tranny fluid need to rotate engine.
I'm changing the transmission fluid today. I need to rotate the engine so that the drain plug on the transmission torque converter faces downward. Question; what size socket is needed to place on the front of the engine to rotate it? Also, do I rotate it clockwise or counterclockwise? Thank you for your input!
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27mm.
Rotate crankshaft clockwise as viewed from the front of the engine looking rearward. |
Thank you!
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As long as your belts are tight, I find it easier to rotate the power steering pulley.
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Torque Converter Drain Plug
My W123's all use a 5MM Allen bit, I find it easiest to use a 3/8" drive one with a 3" extension .
Good on you for doing the job properly . |
300D"T"? Stand behind that car and look at the trunk. Is there a T behind that D??
Report back with your findings..... |
Yes, it is a 300DT turbo diesel four door sedan....
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Look again. You have an '84 300D. People add the T because hey, turbos are cool. But the fact that it's an 84 makes it a turbo diesel, and the rogue T is just to make it supposedly sound cooler.
Come on, be a pro.... |
all I know is when i go to purchase parts, the parts guy always wants to know if it is a four door sedan or a wagon.....
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Parts Counter Boobs
Is this at the dealer or your "F.L.A.P.S." ? .
Many of the people behind the counter know far less than you do ~ I often have to teach them how to properly look up parts and most OnLine catalogs won't let you look up anything until you've given them the two or four door info.... Yesterday afternoon it was pouring rain in So. Cali. so of course I was ridoing my my big brother's 1987 W126 300SDL and the driver's side wiper blade was falling apart . We went to O'Reilly's , I went directly to the wiper blades and the electronic catalog, he went to the counter and asked the very nice guy behind the counter for help . Well over an hour later we left, no new blades , they'd tried fitting refills to his old blades and installing whatever 21" replacements Trico said worked, no joy . When he gets into one of his moods I know not to intervene nor offer help . He said the last time he replaced a wiper blade it flew off on the freeway as soon as he left so now he lets the untrained counter guy touch his car because if the wiper blade flies off he can go back with his receipt and they'll replace it . This makes no sense to me, I choose and install the blades I think are correct and have never yet had any problems . His car has the common "Shepherd's Crook" end on the wiper arms, after waiting a few hours I began looking at the hundreds of discarded wiper lades and not surprisingly found a very good used one that was 20" long but would have at least provided vision . He declined to even look at it nor let me install it and drove off into the dark with almost zero vision . Good luck with your parts searching, whatever it is out there and someone will help you find it . |
If the car has any crazy vibrations or shimmy, it could be a 300DT for delirium tremens.
Phil Forrest |
Being that you have to be under the car it’s best to have a good set of car ramps on this job , utilizing the crank as your turning point since you have to visually watch for the drain plug as you turn the motor , on this occasion if you are doing it by yourself it’s best to use the crank bolt to turn things. I like to have my catch can ready , then just go at the drain plug , let it drain , then rebolt the plug . Tackle the pan and filter after , the key part of this service is make sure your gasket is seated properly on the pan before wrenching it on the transmission . The 6 bolts To put the pan back on it’s important you don’t over torque . You can damage the pan and it’s seating by over tightening these bolts . So much so that you will need a new one . Use a smaller watchet , then snug each bolt only , then start with one half revolution on each bolt in a followed sequence of pattern .I own 5 cars , 2 of them as daily’s , once a year they get the service ,keeps the fleet well in check .
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The compression on the motor will align the drain if you bump the starter a few times…
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I usually use a 22 mm wrench on the power steering pulley. I pop out the washer tank to swing the wrench further. Have a set of long ones from Harbor Freight. The crank bolt is trickier since in deep and need exactly the right configuration of extensions to reach without bumping into the radiator shroud.
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Rain-X
If you use Rain-X to clean your windows you'll be very pleased .
I hope your new blades last a while, here the smoggy air eats the rubber edges to crap in two years tops . |
Back in the early 1980s when I lived in Los Angeles, I remember the smog getting so bad the top of the First Interstate Bank tower literally disappeared from view.....the only time you could see it was when it rained which temporarily cleared the smog.
Here's another interesting statistic; due to the smog, respiratory illnesses are DOUBLE what they are in the rest of the country....... |
love it! i nearly forgot about this.....:)
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Southern California SMOG
Yep, it really was bad back in the day .
My shop was 12 miles as the crow flies from Mt. Wilson and I couldn't see it very often.... In 1973 the L.A. Times did an article and said that living in Los Angeles was like smpking two packs of ciggies every 24 hours...... I can only imagine what the inside of my lungs look like :eek: . |
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Auto Tranny Flushing
I know a man who swears by the "B.G." machine because it separates the old and new ATF 100 % .
However, if the filter is dirty or there's accumulated crud in the tranny pan (I've seen junk that would curl your hair yet the tranny still worked okay) I can't see flushing being a good thing . Mercedes slush box ATF filters are actual filters unlike most slush boxes that use only a debris screen . |
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