560SEC (126.045) V8-5.6L (117.968) (1989)
Remove, reinstall. Clean, check flange surfaces with straightedge, machine on straightening plate if required.
NOTE: Upon assembly ensure that no vacuum lines and electrical wires are jammed in.
Intake manifold gaskets (12)
Renew.
Engine control
Adjust.
Leaks
Check by running engine, check fuel lines for leaks. Check intake system, fuel distributor and injection valves for leaks by spraying with
Iso-Octane.
Idle speed
Check, adjust.
NOTE: Gaskets with changed coating were temporarily installed between intake manifold and cylinder head.
Characteristics: Blue coating around the suction and idle speed ports
Production Breakpoint: January - August 1984
Production Breakpoint: November 1986
A hose fitting with bead is installed to prevent slipping of the vacuum line on the intake manifold.
Production Breakpoint: July 1987