Any M110 Wizards out there ?? - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 11-07-2013, 12:14 PM Thread Starter
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Date registered: Jul 2009
Vehicle: 1980 280GE
Location: Montgomery, AL
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Any M110 Wizards out there ??

Need advice on how to adjust the valves when the adjuster nuts are seized. It is impossible to adjust all but one valve. I hope I didn't damage any of the adjuster screws (round off). Also, I removed the spring clamps per instructions. If the rockers can be removed, a deep well socket can be fitted over the adjuster. However, the valve spring tool is about $225 shipped.

Is there a shade tree method of compressing the valves?? Or does anyone have a tool for sale/rent??

Stuart
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post #2 of 5 (permalink) Old 11-07-2013, 03:57 PM
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Yes, that's how you have to do it, kind of a PITA.

I have the valve spring compressor, and I loan it out for free for a week, but with a $500 deposit. Borrower pays for shipping. PM me if interested.

Chuck Taylor
Falls Church VA
1998 SL500
1959 220S
1970 280SL
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post #3 of 5 (permalink) Old 11-07-2013, 05:08 PM
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This is what I made and used on my M130. A piece of 1" extra thick walled PVC pipe. I cut two slits with a hacksaw blade, then just bent the flap back and forth until it broke off. Then I drilled some holes to allow a spike nail to be put through it. Using four hands and a couple of screw drivers, this was the only way that I was able to compress the springs to remove the rockers. (I had rented one tool and borrowed another that just wouldn't fit) You will have to hand crank the engine to allow the springs to be at their most uncompressed state. Also, make sure to mark which rocker went where. When I was adjusting my valves, I had to compress the spring, remove the rocker, turn the nut a quarter turn, compress the spring, put the rocker back on, check my clearance, compress the spring, remove ther rocker, turn the nut a quarter turn, compress the spring, put the rocker back on....... It was a pain in the arse, but thankfully I had to really only do that to the ones that are closest to the carbs. Hope this helps, good luck.
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post #4 of 5 (permalink) Old 11-08-2013, 07:01 AM Thread Starter
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Date registered: Jul 2009
Vehicle: 1980 280GE
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I consulted with a local cylinder head expert. Luckily, I have a spare M110 at my warehouse. Of course, he had never worked on this type of engine, but he spends all day every day working on various domestic & import cylinder heads. He suggested soaking the adjusters in PB Blaster. I thought perhaps ATF would be thinner, but he held firm on the Pb Blaster.

I had some success using a standard Craftsman 17mm wrench, wrapping it in t-shirt to avoid gouging my hand & bouncing it once then giving it a good tug. It took so much force the whole truck moves (I have a 280GE)!

I honestly don't think the valves had ever been adjusted in 29 years. The adjusters looked untouched. Now they have some rounded corners !

Thanks!

Stuart
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post #5 of 5 (permalink) Old 11-08-2013, 12:13 PM
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i would use the MB wrench that is made to adjust on m110 , it is very strong .
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