XC90 L5-2.5L Turbo VIN 59 B5254T2 (2004)
Use a dial indicator and magnetic holder.
Position the crankshaft with the two outer main bearings in the V block.
Turn the crankshaft and measure the radial runout on the other main bearing journals.
For the correct values, see Specifications, mechanical See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Specifications.
Removing the piston rings
Use piston ring pliers.
Remove coke deposits. Scrape the piston ring grooves clean with a groove cleaner or a broken and filed piston ring.
Check for damage, wear and cracks.
Checking piston ring axial clearance
Use new piston rings.
For the correct values, see Specifications, mechanical See: Powertrain Management/Computers and Control Systems/Engine Control
Module/Specifications.
Checking the piston diameter