Vehicles after change point in 1982 CHECKING VALVES FOR LEAKS - Cylinder Head Removed - Spark plugs remain screwed in. Fill combustion chamber with gasoline outdoors or indoors with conformance of fire prevention regulations. If gasoline runs past valve heads, valves and valve seats must be inspected. Remove valves - see 11 34 550. Machine valve seats - see 11 12 607. 11 34 550 11 12 607 |