Hyundai Tucson: Cylinder Block - 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 release the fuel system pressure before removing the engine assembly, start the engine without fuel pump relay. Then, switch "OFF" the ignition when engine stops.
- Remove the engine and transaxle assembly.
(Refer to Engine and Transaxle Assembly - "Engine and Transaxle Assembly")
- Remove the rear oil seal.
(Refer to Cylinder Block - "Rear Oil Seal")
- Install the engine assembly to engine stand for disassembly.
- Remove the cylinder head.
(Refer to Cylinder Head Assembly - "Cylinder Head")
WARNING
Turn the crankshaft pulley so that the No. 1 piston is at top dead center.
- Remove the oil filter body.
(Refer to Lubrication System - "Oil Filter & Oil Cooler")
- Remove the oil pump.
(Refer to Lubrication System - "Oil Pump")
- Remove the piston and connecting rod assembly.
(1) Using a ridge reamer, remove all the carbon from the top of the cylinder.
(2) Remove the connecting rod bearing caps (A).
WARNING
Mark the connecting rod, and caps to be able to reassemble in the original position and direction.
(3) Push the piston and connecting rod assembly (A) with upper bearing through the top of the cylinder block.
WARNING
- Keep the connecting rod ands cap with their bearings assembled together.
- Arrange the piston and connecting rod assemblies in the correct order.
- Check fit between piston and piston pin.
Try to move the piston back and forth on the piston pin.
If any movement is felt, replace the piston and piston pin as a set.
- Disassemble the piston rings.
(1) Using a piston ring expender, remove the 2 piston rings (A).
(2) Remove the oil ring (B) by hand.
- Disassemble the connecting rod from the piston.
(1) Remove the snap ring (C) from the piston.
(2) Using a press, remove the piston pin (D) from the piston.
(3) Disassemble the piston (E) and connecting rod (F).
READ NEXT:
Connecting Rod
Inspection
Check the side clearance between piston and connecting rod.
Using feeler gauge, measure the side clearance while moving the connecting
rod back and forth.
Side clearance
Standard : 0.1 - 0.25 mm (0.0039 - 0.0098 in.)
Maximum
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
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
SEE MORE:
CCWD Actuator- Installation
WARNING
When installing the CVVD actuator the shaft gear do not fit
properly, rotate the C W D actuator in both directions and
installing it uaturally.
(Do not impact when installating the component.)
Do not damage to the component whe
Engine Control - Fuel System - Description and Operation
Description
If the Gasoline Engine Control system components (sensors, ECM, injector, etc.)
fail, interruption to the fuel supply or failure
to supply the proper amount of fuel for various engine operating conditions will
result. The following
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual
