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1983 300d
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178 Posts
Discussion Starter #1
Hello-

I just fixed the broken air cleaner bracket on my 300dt with a new bracket and new mounting hardware including heat shields. Now the whole air cleaner assembly shakes more than I would like it to. I should have saved the old rubber pieces but threw them away. Any ideas on something that won't melt that I can put between the air cleaner housing and the mounts to stop the vibration.

Any ideas are greatly appreciated,

Thanks,

Bill
 

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1985 300CD Turbo coupe, 2006 E320 CDI sedan
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573 Posts

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81' 300SD, 82' 300D
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4,021 Posts
Hello-

I just fixed the broken air cleaner bracket on my 300dt with a new bracket and new mounting hardware including heat shields. Now the whole air cleaner assembly shakes more than I would like it to. I should have saved the old rubber pieces but threw them away. Any ideas on something that won't melt that I can put between the air cleaner housing and the mounts to stop the vibration.

Any ideas are greatly appreciated,

Thanks,

Bill
You need to stick something between the air cleaner housing and the valve cover so it won't get enough momentum to shake itself to death. Some people use a length of radiator hose. Here's the fix from the late Randy Durrance.

"The air filter mount problem has existed long enough. This is the
repair.....
Looking at the air cleaner, notice the small space between the air cleaner
and the valve cover. There is a flat area on the air cleaner housing near the
valve cover. The repair requires an old rubber shock absorber mount, a 6 mm
bolt (10 mm hex) about 10 to 12 mm long, flat washers and a nut. Make a mark on the forward area of the flat side of the air cleaner housing (toward the valve cover). Remove the air cleaner housing and drill a 6 mm hole at the spot you marked. Put the bolt in the hole from the inside using the washers and nut. Now you have a bolt sticking out of the air cleaner housing... Take an old rubber doughnut from a shock absorber and stick it over the protruding
bolt/nut. Be sure the bolt does not stick out of the rubber. Reinstall the housing and viola the air cleaner housing is unable to generate enough momentum to break the bracket. I've been doing this for about 8 years....never had a second air cleaner bracket break. The idea is to limit the movement of the housing. Even when they were new the brackets were prone to failure.
Regards,
Randy D."
 
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