a finger makes a good gauge- if you can get your fore/index finger in the gap then they're ok (unless you've got really fat fingers of course...) Make sure you check the side nearest the engine. Recently changed one of mine that was knackered after failing the finger test (I had loads of vibration at idle) 
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1993 320TE M104
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past:
1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys
Last edited by whunter; 02-11-2011 at 10:31 AM.
Reason: attached picture
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