MLIT Statutory Recall · Japan

Recall 1142200 — Engine assembly

Filed March 15, 2018 · Isuzu

Overview

MLIT filing number1142200
TypeStatutory Recall (government-mandated recall)
Date filedMarch 15, 2018
Manufacturer(s)Isuzu
ComponentEngine assembly
Production periodOctober 10, 2017 — October 10, 2017
Vehicles affected1 units

Defect

On large buses, the tightening process for the lock nuts used to adjust intake and exhaust valve clearances is improper, leaving some lock nuts with insufficient torque. Continued operation allows these lock nuts to loosen and fall off. In the worst case, a lock nut may enter the engine and cause engine damage.

Corrective action

On all vehicles, inspect the lock nut tightening torque and retighten to the specified torque. If a lock nut has fallen off and cannot be located in the surrounding area, replace the engine with a new unit.

Affected models & chassis ranges

This filing lists 1 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.

Type code (型式)ModelChassis ranges
2KG-RU2AHDJ GALA RU2AHD-60021

Original Japanese (MLIT source text)

Show the original Japanese filing text

状況

大型バスのエンジンにおいて、吸排気バルブ隙間調整用ロックナットの締付け工程が不適切なため、当該ロックナットの締付けトルクが不足しているものがある。そのため、そのままの状態で使用を続けると、当該ロックナットが緩み脱落し、最悪の場合、エンジン内に混入することでエンジンが損傷するおそれがある。

改善措置

全車両、当該ロックナットの締付けトルクを点検し、再度、規定トルクで締付ける。なお、当該ロックナットが脱落し、締付け部の周辺に見当たらないものについては、エンジンを新品に交換する。

Source & verification

This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:

https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3004213

Check your own vehicle: to see whether this filing affects a specific chassis number — and find every other recall for it — use the chassis lookup on the home page.

Related

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