Are you sure you turn the knurled body? Looks like you thread into pin, hold bolt head still with wrench while tightening innner nut to force the bolt away from the engine pulling the pin w/ it. That's how the tool I made out of a long bolt, nut, washer and socket worked....and worked quite well actually...twice.

Good luck,

Jon

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1984 Astral Grey 300TDT - The French Fry
1979 Yellow 300SD - The Pomme - SOLD
1985 Light Ivory 300DT - Fritz
1987 Anthracite Grey 300SDL - ?

I have tried both types of pin pullers - the impact type and the bolt type like you have. I have never had any luck with the bolt type. If the pin is stuck very much, the threaded pin will break. The impact slide hammer type works much better.

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1995 S-350
370K + SOLD
1952 220B Cabriolet
39K kilometers + SOLD
1998 E300D
310K +
2012 E350 BlueTec
120K

Pretty cool... so you're putting a m117 560 motor into the 420? Just to let you know, you'll need to block off the SLS system since the 420 doesn't have one. The M117 you're putting in has the tri-Y headers and downpipes? I hope the engine and header came from a w126 as the headers from a R107 won't fit because of the steering box being in the way. Did you find your tri-Y's state side? I had to have mine shipped from abroad... pretty heavy at 15kg for 4 pipes.

The tool you have looks like it will work just fine but before you pull the pin out of the head it will help to heat it up. Be sure you clean out the threads in the pin so that the tool end goes all of the way in.

I tried to pull the pin out with a 6mm/1.00 threaded rod and a piece of pipe, bolt and washer. The pin was in so tight (after 20 years) that it just stripped the threads in the bolt. Your tool won't do that because the pull out threads on it look like they are heavy duty.

For folks that don't have the tool I'll say that on my second try I made a "poor boy" impact puller out of a short piece of 1" threaded pipe with 2 screw on ends and a 10 pound weight from a barbell set. I drilled a hole in one of the ends and ran a short 6mm/1.00 bolt through it into the threads in the pin. With both ends screwed on and the weight in the middle I was able to coax the pin out of the head with a few short strokes. It worked all right but only after I heated the head with a torch in the back and the front where the pin goes in.

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Tom Hughes
St. Louis
84 300SD
92 300D
86 300SDL

Just figured it out this morning, works GREAT. One of the best tools I have purchased...

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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.

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