Japan
Published 17 Jun 2010
Ref JP-1125430
Yanmar: Engine Block
Translated from Japanese · machine translation
- Country
- Japan
- Published
- 17 Jun 2010
- Units affected
- 168
- Reference
- JP-1125430
Affected vehicles
Yanmar CT226 2009
Yanmar CT230 2009
Yanmar CT401 2009
Yanmar CT451 2009
Yanmar CT801 2009
Yanmar EF334V 2009
Yanmar EG220 2009
Yanmar EG222 2009
Yanmar EG224 2009
Yanmar EG224X 2009
Yanmar EG227 2009
Yanmar EG227X 2009
Yanmar EG230X 2009
Yanmar EG437Y 2009
Yanmar EG441Y 2009
Yanmar EG445Y 2009
Yanmar EG53 2009
Yanmar EG53Y 2009
Yanmar EG58Y 2009
Yanmar EG65Y 2009
Yanmar EG83Y 2009
Yanmar GC338V 2009
Yanmar GC441V 2009
Yanmar GC447V 2009
Yanmar GC698 2009
Hazard
Defective hardened valve clearance adjustment screws have been included in the intake and exhaust valves of the engine. The contact surface with the pushrod experiences premature wear. If operation continues in this condition, valve opening becomes insufficient, preventing normal combustion and risking exhaust emissions exceeding regulatory limits.
Show original (日本語)
原動機の吸排気バルブのバルブクリアランス調整ネジにおいて、焼き入れ不良品が混入したため、プッシュロッドとの接触面が早期に磨耗するものがある。そのため、そのままの状態で使用を続けると、バルブの開度が不足して正常な燃焼ができず、排出ガスの排出量が基準値を超えるおそれがある。
Remedy
Replace valve clearance adjustment screws with conforming parts on all vehicles.
Show original (日本語)
全車両、バルブクリアランス調整ネジを良品に交換する。