In November 2020, Hino filed a statutory recall with Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) concerning the Fuel Injection System, covering the Rainbow 2. The filing affects 658 vehicles manufactured between November 24, 2011 and November 2015.
Overview
| MLIT filing number | 1148430 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 12, 2020 |
| Manufacturer(s) | Hino |
| Component | Fuel Injection System |
| Production period | November 24, 2011 — November 2015 |
| Vehicles affected | 658 units |
Filing in context
The Fuel Injection System is the most frequently cited component category in this archive, appearing in 23 of its 4,890 filings. This filing is one of 35 Hino notifications from 2020 in this archive. For scale, 3,034 of the 4,890 filings in this archive report a larger number of affected vehicles; the vehicles involved here were manufactured over a span of about 4 years.
Defect
On medium-duty buses, the specified tightening torque for the injector mounting bolts in the fuel injection system is incorrect, leaving the injector gasket with insufficient sealing performance on some units. Combustion gas leaks past the gasket, causing the injector mounting bolts to loosen. Increased vibration then causes the bolts to fracture, which stalls the engine and renders the vehicle inoperable.
Corrective action
On all vehicles, replace the gasket with the corrected part and tighten to the specified torque. If any fuel injection system components are found to be damaged, replace those parts with new ones.
Affected models & chassis ranges
This filing lists 2 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| SDG-KR290J1 | 日野レインボー２ | KR290J1-7000001 — KR290J1-7000782 |
| SKG-KR290J1 | 日野レインボー２ | KR290J1-7000001 — KR290J1-7000782 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
中型バスの燃料噴射装置において、インジェクタ取付ボルトの締付トルク指示が不適切なため、インジェクタガスケットのシール性が不足しているものがある。そのため、燃焼ガスが漏れてインジェクタ取付ボルトが緩み、振動が大きくなって当該ボルトが折損し、エンジンが停止して走行できなくなるおそれがある。
改善措置
全車両、ガスケットを対策品に交換し、適正トルクで締め付ける。なお、燃料噴射装置が損傷している場合は損傷部品を新品に交換する。
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=3004852
Related recalls
Same manufacturer, same component
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