Quote:
Originally Posted by sailorbenjamin
The guy in this video says that it's common for the valves to get too tight on old Benzs. That'll cause a compression drop.
Now why would the valves get too tight? Other engines I've worked on got loose when things wore.
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Some engine get loose, some get tight. It depends.
Valves can end up tight because the parts stretch a tad and the valve seat wears. Some get loose because metal wears away. It just depends. On my Accord J30A1 the intakes get loose and the exhausts get tight.
