4-6. TURBOCHARGER ASSEMBLY REPAIR (CONT)
Install impeller (18), bearing
housing (14), and shaft and
wheel (19) into turbine housing (1)
as an assembly.
Align match marks on bearing
housing (14) and turbine housing (1)
that were made at disassembly.
Install two clamp plates (17) and
four screws (16) on turbine housing
(1). Tighten bolts to 120 lb-in (14
Measure shaft and wheel (19) end
Attach a dial indicator to the
turbine housing (1). Adjust dial
indicator-so that plunger is against
shaft and wheel (19) end.
Set dial indicator to zero.
Move shaft and wheel (19) and
impeller (18) assembly back and
forth and read end play on dial
indicator. If end play is less than
0.0015 in. (0.038 mm), or greater
than 0.0037 in. (0.093 mm),
disassemble turbocharger, Steps (8)
through (25), and check for problem.
Replace defective parts and
assemble, Steps (2) through (26).