🚗 Classic Fault — Porsche 901/911 (1963–1989)
Porsche 911 air-cooled engine oil leak from rocker cover gaskets
💰 Estimated Repair Cost
$20 – $80 GBP
Parts and labour estimate
🔧 Tools Required
Torque wrench, rocker cover tools
📋 Overview
The rocker cover gaskets on air-cooled 911 engines (1963-1998) harden and crack with heat cycling, causing oil to weep onto the hot engine tin and exhaust.
🩺 Symptoms
- Oil smell when warm
- oil on engine tinware
- oil on exhaust causing smoke
- oil consumption
🔍 Possible Causes
- Hardened rocker cover gaskets
- loose rocker cover studs
- cracked rocker cover
🛠️ Diagnosis Steps
Clean engine and run — oil will seep from rocker cover perimeter. Check all four covers (two per bank).
✅ Most Confirmed Fix
Rocker cover gasket replacement with new cork or silicone gaskets
88% of users confirm this fix worked (34 reports)
🔗 Other Porsche 901/911 Faults
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