the 450 valve adjustment - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 06-11-2008, 09:46 PM Thread Starter
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Vehicle: 1972 280SE 4.5
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the 450 valve adjustment

Before i remove the cam covers, I just wanted to know if I need to have that special crowfoot to adjust the valves? I heard about them regarding diesel models, but mine's a m117, the car is a 72 280SE 4.5.

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post #2 of 2 (permalink) Old 06-18-2008, 10:38 AM
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You for sure need a crowfoot, at least a standard one. If the adjusters are stuck, you will need the special tool. The adjusters are soft metal and easy to round. If you have a valve spring compressor, you can remove the rocker arm and get a socket on the really tough ones. I have had some that were so hard to move that I needed a breaker bar with an 18" piece of pipe for leverage.

Chuck Taylor
Falls Church VA
1998 SL500
1959 220S
1970 280SL
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