Honda CR-V K24A1 2.4L L4 Engine 12479E 2002-2006

Description

Exhaust camshaft lobe pitting and timing chain tensioner ratchet tooth wear plague high mileage sport utility platforms. The Honda CR-V K24A1 Engine corrects these valvetrain vulnerabilities during fleet commercial long block repower installations. This 2.4L 4-Cylinder power plant produces 160HP. Installers must verify intermediate shaft bracket alignment to avoid axle seal fluid leakage.

Cast from dense ASTM A356-T6 aluminum with cast-in iron liners, this Honda engine core delivers rigidity under severe thermal stress. The rotating assembly features a forged micro-alloy steel crankshaft marked PNA supported by tri-metal bearings. Starter draw pulls 145A at 12V under standard shop test procedures. Unrigged dry weight totals 190 lbs with overall exterior measurements of 36in length, 36in width, 36in height, operating with a 4.5 quarts oil pan volume.

Key Features of Honda K24A1

Fleet repair facilities buy Honda K24A1 long block assemblies to resolve chronic valvetrain wear during industrial engine rebuild projects. Computer controlled CNC hone equipment produces exact crosshatch cylinder finishes to guarantee rapid piston ring seating and long term thermal control.

• Hardened camshaft lobes eliminate premature lobe wiping across the DOHC 16-Valve valvetrain.
• Left bellhousing stamped K24A1 and cast PPA verifies correct factory casing heritage.
• Upgraded timing chain tensioner mechanics prevent ratchet slip and cam phaser code generation.
• High flow cylinder head casting PPA3 optimizes air fuel velocity through revised intake runners.
• The K24A1 commercial core includes balanced cast aluminum pistons to suppress secondary reciprocating vibration.
• Internal twin balance shaft assemblies eliminate secondary engine harmonic vibrations under sustained acceleration.
• Tri-metal journal bearings provide elevated embeddability to resist abrasive debris wear.
• Chain driven oil pump mechanics ensure uninterrupted fluid flow across high RPM operating bands.

Dynamometer Output Tolerance Standards

Dynamometer testing verifies 160HP at 6000 RPM and 162 ft-lbs torque at 3600 RPM under continuous dynamometer test conditions. Oil gallery pressure measures 55 PSI at an oil sump temp of 195°F. Cylinder compression holds 190 PSI across all cylinders with variance staying under 4%. Crankshaft journal runout remains inside 0.0003in TIR across all five main bearings. This K24A1 long block engine operates with exhaust gas temp peaks below 1320°F under simulated hill climb load sequences.

Chassis Installation Platform Coverage

Engineered specifically for the 2002 to 2006 Honda CR-V sport utility vehicle, this long block matches RD4, RD5, RD6, and RD7 chassis configurations. It fits both front wheel drive and Real Time four wheel drive configurations, mounting direct to factory 5-speed manual or 4-speed and 5-speed automatic transaxle cases.

Field Usability Preventative Maintenance

Throttle body cable linkage requires 4 lbs of linear pull force to guarantee crisp mechanical response. Field technicians must note this assembly is NOT engineered for Civic Si K20A3 or Acura TSX K24A2 chassis, as the cylinder head lacks high-lift VTEC exhaust rocker profiles and high-RPM oil pump balance shafts.

• Replace break-in engine oil and spin-on filter after 500 miles or 25 operating hours.
• Check intake valve lash at 0.009in and exhaust valve lash at 0.011in on cold engines.
• Clean the variable valve timing screen strainer during every secondary oil change service.

Factory Warranty Manifest Details

Supported by an extensive 3-Year 100,000-mile parts warranty, each assembly fulfills rigorous Honda assembly standard requirements. The heavy duty wooden shipping crate contains the assembled long block, aluminum oil pan, front timing cover, cast aluminum valve cover, oil pickup assembly, and official dyno quality certification paperwork.