engine

Lifter - Single

for 2016 Toyota Corolla 1.8L I4 · FWD

Difficulty

Advanced

Time

4.0 h

Tools

Steps

This procedure covers the replacement of a single hydraulic valve lifter on the 2014-2019 Toyota Corolla 1.8L 2ZR-FE engine, requiring removal of the valve cover, camshafts, and rocker arms to access the lifter.

Warnings

⚠️Incorrect camshaft timing will cause catastrophic engine damage and potential injury from valve-piston contact. You MUST use proper timing tools and verify timing marks before starting engine.

⚠️Never rotate the crankshaft or camshafts independently once timing chain is installed without proper timing tool positioning. Engine damage will occur.

⚠Work only on a completely cold engine. Hot components can cause severe burns.

⚠Camshaft lobes must be positioned correctly before torquing rocker arm bolts or valve train damage will occur.

⚠Lifters must be kept in order if removing multiple. Installing a used lifter in wrong position causes premature wear.

ℹ️This procedure requires precise timing tool usage and torque specifications. If you are uncertain about any step, seek professional service to avoid engine damage.

Tools required

Socket set (8mm, 10mm, 12mm, 14mm)Essential

Torque wrench (10-50 Nm range)Essential

Camshaft timing tool set for 2ZR-FEEssential

Magnetic lifter removal toolEssential

Plastic pry tools

Gasket scraperEssential

Clean shop towelsEssential

Engine oil drain panEssential

Dial indicator with magnetic base

Wire brush

Parts

Hydraulic valve lifter × 1 — Use OEM Toyota 13751-37010
Valve cover gasket × 1 — Use OEM specification
Valve cover grommet seals × 4 — Use OEM specification
Spark plug tube seals × 4 — Use OEM specification
Camshaft oil seals × 2 — Use OEM specification
Engine oil × 1 — Toyota Genuine 0W-20

Fluids

Toyota Genuine 0W-20 — 4.5 qt

Preparation

Ensure engine is completely cold (at least 2 hours after last operation)
Disconnect negative battery terminal and wait 90 seconds for airbag system discharge
Remove engine cover by pulling upward on four mounting points
Remove air intake duct and air filter housing assembly
Drain engine oil completely into appropriate container
Label and disconnect all electrical connectors from valve cover (ignition coils, PCV, cam sensor)
Remove all four ignition coils (10mm bolts)
Position cylinder #1 to TDC on compression stroke by aligning timing marks on crankshaft pulley
Have clean workspace prepared to organize camshaft caps and rocker arms in exact removal order

Procedure

1
Remove valve cover
Remove all valve cover bolts in reverse of tightening sequence (start from outer bolts working inward). Carefully lift valve cover straight up. If stuck, gently tap with plastic mallet - do not pry between sealing surfaces. Remove old gasket and clean all sealing surfaces thoroughly with gasket scraper and brake cleaner.
Torque spec
Cover Bolts15 Nm (11 lb-ft)
2
Install camshaft timing tools
Verify camshaft timing marks are aligned with marks on timing chain cover. Install camshaft timing tool set to lock both intake and exhaust camshafts in TDC position. This prevents camshaft rotation during disassembly. Verify crankshaft has not moved from TDC position.
⚠️Do not proceed without camshaft timing tools properly installed. Camshaft movement will result in incorrect valve timing and engine damage.
3
Remove camshaft bearing caps
Loosen camshaft bearing cap bolts in multiple passes (1/4 turn increments) in reverse numerical sequence (start from highest number cap working to #1). Remove caps and keep in exact order with bolts. Mark intake vs exhaust side. Note that caps are directional and position-specific - they cannot be interchanged.
⚠Loosening bearing caps unevenly or too quickly can warp camshafts or damage caps. Always loosen gradually in correct sequence.
4
Remove camshafts
With timing tools still in place, carefully lift out both camshafts. Keep them labeled (intake/exhaust) and protected on clean towels. Inspect camshaft lobes and journals for scoring or wear. Do not allow camshafts to roll or contact hard surfaces.
⚠Camshafts are precision components. Any damage to journals or lobes requires replacement.
5
Remove rocker arms
Remove all rocker arms and keep in exact order corresponding to cylinder and valve position. Use compartmented tray or label clearly (Cyl 1 Intake, Cyl 1 Exhaust, etc.). Inspect rocker arm contact surfaces for wear or scoring. Clean rocker arms with parts cleaner.
Torque spec
Rocker Arm Bolts30 Nm (22 lb-ft)
6
Remove and inspect lifter
Using magnetic lifter removal tool, extract the faulty lifter from its bore. Note exact position and cylinder number. Inspect lifter bore for scoring, debris, or oil passage blockage. Clean bore thoroughly with lint-free cloth. Inspect camshaft lobe corresponding to this lifter for wear patterns. If lobe shows significant wear, camshaft replacement is required.
⚠A failed lifter often indicates camshaft lobe wear. Replacing only the lifter without inspecting the cam lobe may result in repeat failure.
7
Prepare and install new lifter
Remove new lifter from packaging. Prime lifter by submerging in clean 0W-20 engine oil and manually pumping plunger 10-15 times until resistance is felt (air purged). Coat exterior of lifter with fresh engine oil. Insert lifter into bore ensuring it seats fully and rotates freely. Lifter should drop into bore under its own weight - do not force.
ℹ️New lifters must be primed with oil before installation to prevent initial startup damage.
8
Install rocker arms
Install rocker arms in exact original positions. Ensure each rocker arm seats properly on its lifter and valve stem. Coat rocker arm contact points with fresh engine oil. Verify no debris is present on seating surfaces.
⚠Rocker arms installed in wrong positions will cause valve timing issues and potential engine damage.
9
Install camshafts
Apply fresh engine oil to all camshaft journals and lobes. Position intake and exhaust camshafts in cylinder head with timing marks aligned. Ensure camshaft timing tool engages properly. Verify each cam lobe is positioned away from its corresponding rocker arm (lobe pointing up/away) before installing bearing caps.
⚠️Camshaft timing marks must align exactly with timing chain marks. Verify before proceeding.
10
Install camshaft bearing caps
Apply light coat of engine oil to bearing cap journals. Install bearing caps in correct positions and orientation (match marks/numbers). Hand-tighten all bolts first. Torque bearing cap bolts in numerical sequence (start from #1 cap) in multiple passes: first pass to 12 Nm, final pass to specification. Work from center outward. Remove timing tools after caps are fully torqued.
⚠Bearing caps must be torqued in proper sequence to prevent camshaft binding or cap distortion.
Torque spec
Rocker Arm Shaft Bolts25 Nm (18 lb-ft)
11
Verify camshaft operation
Manually rotate crankshaft two complete revolutions clockwise using 19mm socket on crankshaft bolt. Verify timing marks realign at TDC. Check for binding or resistance - rotation should be smooth. Reinstall timing tools to verify alignment. If timing is off, disassemble and correct before proceeding.
⚠️If camshaft timing is incorrect or engine binds during rotation, STOP immediately. Disassemble and identify problem before continuing.
12
Install new valve cover gasket and seals
Install new spark plug tube seals into valve cover recesses. Install new grommet seals for PCV and breather ports. Position new valve cover gasket on cylinder head - verify proper seating in all grooves. Apply small dab of RTV sealant to front corners where timing chain cover meets cylinder head (both sides).
ℹ️Use only minimal RTV sealant at corners - excess sealant can contaminate oil passages.
13
Install valve cover
Carefully position valve cover onto cylinder head without disturbing gasket. Install all bolts hand-tight. Torque valve cover bolts in sequence (start from center, work outward in spiral pattern) to specification. Do not overtighten - valve cover is aluminum and can warp.
⚠Overtightening valve cover bolts will warp cover and cause oil leaks. Use torque wrench and proper sequence.
Torque spec
Cover Bolts15 Nm (11 lb-ft)
14
Reinstall ignition coils and electrical connections
Install ignition coils into spark plug tubes with new O-rings if provided. Torque coil mounting bolts to specification. Reconnect all electrical connectors (cam sensor, ignition coils, PCV). Ensure connectors click securely into place.
Torque spec
Sensor Bolts10 Nm (8 lb-ft)
15
Fill engine oil and final assembly
Install new oil filter and fill engine with 4.5 quarts of Toyota Genuine 0W-20 engine oil. Reinstall air filter housing and intake duct. Reinstall engine cover. Reconnect negative battery terminal. Do not start engine yet - proceed to verification steps.
ℹ️Initial startup requires careful monitoring. Have oil pressure gauge or scan tool ready to verify oil pressure immediately upon starting.

Reassembly

Double-check all electrical connectors are fully seated and locked
Verify no tools or shop towels remain in engine bay
Confirm oil drain plug is tight and oil level is correct on dipstick
Ensure all vacuum lines and breather hoses are reconnected
Verify valve cover bolts are torqued in proper sequence

Verification

With vehicle in Park/Neutral and parking brake set, start engine while monitoring oil pressure immediately - pressure should register within 2-3 seconds
Listen for unusual ticking, tapping, or knocking sounds from valve train - new lifter may tick briefly (30-60 seconds) until fully primed
Allow engine to idle for 5 minutes while monitoring for oil leaks around valve cover gasket
Rev engine gently to 2500 RPM several times and verify smooth operation with no abnormal sounds
Check for proper idle quality - should be smooth without misfires (any misfires indicate ignition coil connection problem)
After engine reaches operating temperature, shut off and recheck oil level - top off if needed
Test drive vehicle and verify normal acceleration and no check engine light
After 50-100 miles, recheck valve cover for oil seepage and retorque if necessary (cold engine only)
Monitor oil consumption over next 500 miles to ensure new lifter is functioning properly