Honda VTEC Lost Motion Assembly Set 14820-PCB-305 – 8 pcs for B16 and H22 engines

VTEC Lost Motion Assemblies are precision-engineered components responsible for maintaining correct valve train clearance when the VTEC system is inactive. Each assembly uses a spring-loaded hydraulic lifter that absorbs slack between the rocker arms and cam lobes, ensuring smooth and quiet operation. Over time, these lifters lose tension and oil control efficiency, leading to rattling noises and delayed VTEC engagement. Replacing them with a new OEM-spec set restores quiet, precise, and reliable cam operation.

Applications and compatibility

OEM part number: 14820-PCB-305 (set of 8 units)

This set of VTEC lost motion assemblies fits Honda engines from the B- and H-series family used in iconic 1990s performance models:

• B16A1 – Honda Civic and CRX 1.6 i-VT (EE8 / EE9)
• B16A2 – Honda Civic VTi (EG6, EK4) and CR-X Del Sol VTi
• B18C4 – Honda Civic MB6 and Civic Aerodeck MC2
• H22A, H22A2, H22A5 – Honda Prelude 2.2 VTEC (engines produced up to 1997)

Replaces the following OEM part numbers:

• 14820-PR7-A02
• 14820-PR7-A01
• 14820-PR7-A00
• 14820-PR3-000
• 14820-P30-000
• 14820-P30-010

Key features and benefits

• Complete set of 8 pieces – sufficient for one full VTEC cylinder head (B16 / H22).
• OEM-spec design – identical dimensions and spring rates as the original Honda parts for correct oil pressure and timing system balance.
• Noise reduction – eliminates the metallic ticking sound typical of worn VTEC lifters.
• Smoother VTEC engagement – consistent spring tension ensures precise activation at high RPMs.
• Durable materials – hardened steel body and precision-machined piston for maximum longevity and oil stability.

Replacing the VTEC lost motion assemblies is recommended during head rebuilds or whenever the engine shows noisy valve operation or delayed VTEC switching. For engines with mileage above 150,000 km, new lifters significantly improve response and reliability.

Installation notes and service tips

• Before installation, soak each lifter in clean engine oil to prevent dry start-up.
• Inspect camshafts and VTEC rocker arms for wear during replacement.
• Avoid cheap aftermarket copies – correct dimensions and spring tension are critical for proper oil pressure and VTEC timing.

FAQ – Frequently Asked Questions about Honda VTEC Lost Motion Assemblies 14820-PCB-305

1. What are the symptoms of worn VTEC lost motion assemblies?
Typical signs include a metallic ticking noise from the top of the engine at idle or low RPMs. In some cases, the VTEC system engages late or inconsistently. Replacing the assemblies restores quiet operation and proper valve timing behavior.

2. Do VTEC lost motion assemblies affect engine power?
Indirectly, yes. Worn assemblies reduce oil pressure stability in the cylinder head, which can delay VTEC activation and lower top-end performance. New lifters ensure the system engages on time, restoring full VTEC power delivery.

3. When should the VTEC lifters be replaced?
Replacement is recommended after 150,000 km or if abnormal valvetrain noise appears. It’s also advised to replace them during a head rebuild or when installing performance camshafts.

4. Are B-series and H-series VTEC lifters interchangeable?
No – although similar in design, they differ in dimensions and spring tension. The 14820-PCB-305 set fits B16, B18C4 and H22A/H22A2/H22A5 engines up to 1997 only. It is not compatible with later H22A8 or K-series engines.

JDMshop.eu supplies genuine Honda OEM and top-quality replacement components, helping you restore the original precision and smooth VTEC performance characteristic of 1990s Honda engineering.