Hyundai Tucson: Piston
- Clean the piston.
(1) Using a gasket scraper, remove the carbon from the piston top.
(2) Using a groove cleaning tool or broken ring, clean the piston ring grooves.
(3) Using solvent and a brush, thoroughly clean the piston.
WARNING
Do not use a wire brush.
- Check the piston-to-cylinder clearance by calculating the difference between the cylinder bore inner diameter and the piston outer diameter.
Piston-to-cylinder clearance : 0.035 - 0.055 mm (0.0014 - 0.0022 in.)
(1) Using a cylinder bore gauge, measure the cylinder bore diameter at position in the thrust and axial direction.
Cylinder bore diameter : 75.60 - 75.63 mm (2.9764 - 2.9776 in.)
(2) Measure the piston outside diameter at 13.0 mm (0.5118 in.) from top land of the piston.
Piston outside diameter : 75.555 - 75.585mm (2.9746 - 2.9758 in.)
- Select the piston matching with cylinder bore class. (match classification mark)
Piston-to-cylinder clearance : 0.035 - 0.055 mm (0.0014 - 0.0022 in.)
(1) Check the cylinder bore size mark on the side of the cylinder block.
Discrimination of Cylinder Bore Size
(2) Check the piston outer diameter size mark (A) on the piston top face.
A : GRADE MARK (A,B, C)
T : T-GDI
5 : 1.6L
P : Specification
Discrimination of Piston Outer Diameter
READ NEXT:
Piston Rings
Inspect the piston ring side clearance.
Using a feeler gauge, measure the clearance between new piston ring and the
wall of ring groove.
Piston ring groove width dimension of piston
No.1 ring : 1.230 - 1.250 mm (0.0484 - 0.0492 in.)
No.2 r
Piston Pin - Disassembly
WARNING
Use fender covers to avoid damaging painted surfaces.
To avoid damage, unplug the wiring connectors carefully while
holding the connector portion.
WARNING
Mark all wiring connector and hoses to avoid misconnection.
To releas
Cylinder Block Crankshaft Journal Bore Mark Location
Letters have been stamped on the side surface of the block as a mark for the
size of each of the 5 main
journal bores.
Use them, and the numbers or letters stamped on the crank (marks for main
journal size), to choose the
correct bearings.
SEE MORE:
IMT System Actuator- Replacement
iMT system actuator fluid - when fluid suction tool is available
Remove the air cleaner assembly and the air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
Remove the reservoir cap (A) and drain the imt system actuator
Reverse Parking Collision- Avoidance Assist Settings
Reverse Parking Collision-Avoidance
Assist will warn the driver or will
assist with braking to help reduce the
possibility of collision with a pedestrian
or an object when backing up.
Detecting sensor
[1] : Rear view camera,
[2] : Rear ult
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual