TURBOCHARGER REPAIR - CONTINUED
ASSEMBLY - CONTINUED
Position shaft and wheel assembly (6) in holding fixture.
Wear protective gloves and goggles when working with hot oil. Failure to do so could result in injury.
Use clean oil to heat impeller (7) to a maximum tem-
perature of 350F (177C).
Install impeller (7) on shaft and wheel assembly (6).
Do not push bending force on shaft and wheel
assembly when tightening nut.
Install new locknut (9). Torque locknut to 120 lb-ft
Allow impeller to cool below 150F (66C) before proceeding to the next step. Failure to follow this
procedure could cause damage to the shaft and wheel assembly.
Loosen new locknut (9). Inspect faces of impeller (7) and new locknut to be sure they are clean and smooth.
Use clean oil to lubricate top of impeller (7) face beneath new locknut (9) and threads of shaft and wheel assembly (6).
Install impeller (7) and new locknut (9) if removed.
Torque new locknut to 30 lb-ft (41 Nm).
Install dial indicator on impeller assembly (7).
Use dial indicator to measure length of projection of
shaft and wheel assembly (6) above new locknut (9).
Use a wrench and a tee handle to tighten new locknut
until exposed length of shaft and wheel assembly is
increased 0.007-0.008 in. (0.1778-0.2032 mm).
Remove dial indicator.