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Old 09-14-2013, 03:16 PM
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Join Date: Mar 2013
Location: Canada
Posts: 14
Wrench size for valve adjustment for a '70 220D?

I found a nice walk through for adjusting the valves on my 220D. Checking the first one it seems they are too tight. But when I got to adjust them I can get a wrench to fit the bottom nut. The top one is a 14mm no problem there. The bottom one looks to be 14mm but is a little too big for a 14mm wrench to fit. A 15 is too big. I even dug into my SAE wrenches but nothing I have fits the bottom nut. Am I missing something obvious here? A special tool perhaps? Thanks.

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Old 09-14-2013, 04:28 PM
sassparilla_kid's Avatar
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Join Date: May 2012
Location: Fresno, CA
Posts: 330
They should both be 14mm, is it possible the wrench might be getting hung up on something else, preventing it from going on? If all else fails, you can always get a cheap 14mm from a parts store or something and file it out a little larger

1982 300D Turbodiesel, daily driver. Mods so far: Fram 8038 paper filter, 4 brake light mod, Gen II w126 (front) rotors/calipers, boost turned up to 12lbs, non-egr manifolds, water/methanol injection, 4-speed manual
1980 300SD Turbodiesel, project car, nearly ready to hit the street

1974 240D, New paint
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