🚗 Classic Fault — Alfa Romeo 105 (1962–1978)
Alfa Romeo 105 water pump failure — bearing noise
💰 Estimated Repair Cost
$40 – $120 GBP
Parts and labour estimate
🔧 Tools Required
Coolant drain tools, torque wrench
📋 Overview
The water pump bearing on the twin-cam Alfa engine wears and produces a bearing rumble audible at idle.
🩺 Symptoms
- Rumbling noise from front of engine at idle
- pump shaft has play when grabbed
- coolant seeping from weep hole
🔍 Possible Causes
- Worn water pump bearing
- failed water pump seal
- loose pump pulley
🛠️ Diagnosis Steps
Grab water pump pulley and check for radial play — any movement means bearing is worn.
✅ Most Confirmed Fix
Water pump replacement
87% of users confirm this fix worked (26 reports)
🔗 Other Alfa Romeo 105 Faults
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