A timing chain check and possible replacement, along with upper chain rails, is one of the things at the top of my to do list should I go for it. Guides and seals can be checked at the same time, thanks for bringing those up.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.