Those "absorbers" seem to more commonly be called "valve hushers". They will break down and lose most of their ability to "hush" after several thousand miles. Must have been one of those "features" Volvo implemented to make the cars sound "quiet and dignified" as they drove off of the lot (cough cough crumby rubber accessory bushings cough).
If you are going to replace the hushers, be sure to set the valve clearance before installing them - otherwise your measurements will be off.
91' 240 valve job
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mtd240
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Re: 91' 240 valve job
2007 XC70, white/oak, 175k miles
2008 XC70 3.2L, 115k miles
2016 XC60, osmium grey / off-black, 95k miles
Gone:
1990 240 DL Wagon, M47, lots of goodies. 372,000 miles
1978 242, lots and lots of work to get a reliable daily
1998 V70 XC, Almost done replacing everything, then I sold it
1996 850 NA, victim of sporadic tree falling. Protected the wife. RIP Volvo
2008 XC70 3.2L, 115k miles
2016 XC60, osmium grey / off-black, 95k miles
Gone:
1990 240 DL Wagon, M47, lots of goodies. 372,000 miles
1978 242, lots and lots of work to get a reliable daily
1998 V70 XC, Almost done replacing everything, then I sold it
1996 850 NA, victim of sporadic tree falling. Protected the wife. RIP Volvo
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