Bought an '88 560SL about six months ago. It has 39,000 miles and AFAIK the timing chain and all the rails are original. After 20 years, regardless of the low miles, should I change the rails and timing chain and replace the cam oiler tube inserts?

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Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles