Tribute 4WD L4-2.5L Hybrid (2009)
Exhaust Manifold: Procedures
EXHAUST MANIFOLD CLEANING/INSPECTION
1. Clean the exhaust manifold using a suitable solvent. Use a plastic scraping tool to clean the gasket sealing surfaces.
2. Using the precision straight edge and a feeler gauge, check the exhaust manifold sealing surface for warpage. If the warpage is greater than 0.76
mm (0.0299 in), install a new exhaust manifold.
NOTE:New exhaust manifold gaskets studs, nuts and/or bolts must be installed when an exhaust manifold is serviced.
NOTE:Use a straightedge that is calibrated by the manufacturer to be flat within 0.005 mm (0.0002 in) per running foot of length, such as Snap-On(R)
GA-438A or equivalent. For example, if the straightedge is 61 cm (24 in) long, the machined edge must be flat within 0.0010 mm (0.0004 in) from end
to end.