Failure of Reused Rotocoils in 3500 Engines{1100} Caterpillar

Caterpillar Products:Machine Engines All 3500 Series

Caterpillar Products: 3500C Engines

Engine:Commercial 3500 and 3500B Family All

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

A 197-7062 Rotocoil As (inlet) and a 197-7063 Rotocoil As (exhaust) may develop inner wear that cannot be observed. This can cause a reused rotocoil to fail.

Solution

Do not reuse the 197-7062 Rotocoil As or the 197-7063 Rotocoil As . Install new rotocoils at the engine overhaul.