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:
Rear Glass Defogger
Inspection
Wrap tin foil around the end of the voltmeter test lead to prevent damaging
the heater line. Apply
finger pressure on the tin foil, moving the tin foil along the grid line to
check for open circuits.
Turn on the defogger swit
Air Conditioning System - Instructions (R- 1234yf)
WARNING
The R-1234yf liquid refrigerant is a flammable gas. The gas
reduces oxygen available for
breathing and causes asphyxiation in high concentrations. The victim will
not realize that he/she
is suffocating.
Inhalation may cause ce
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual