Air-Cooled 911
Air-Cooled Porsche 911 Service & Maintenance
Air-cooled 911s represent Porsche's purest driving expression—no water pumps, no radiators, just the unmistakable sound of a flat-six breathing through cooling fins. At Repasi Motorwerks, our Porsche Classic certified technicians understand that these cars deserve preservation-focused service that respects their heritage.
Gold Meister Certified · PIWIS Factory Diagnostics · Stratford, CT
Our Air-Cooled 911 Expertise
- All air-cooled 911 generations (1964-1998)
- 964 and 993 specialists
- G-body and impact bumper expertise
- Long-hood and early 911 service
- Porsche Classic certified
Air-Cooled 911 Services We Provide
Oil Service
Air-cooled specific lubricants (20W-50 or 15W-50). Valve adjustment check and thermal cycling inspection.
Valve Adjustment
Critical air-cooled maintenance. Hydraulic lifter inspection (964/993) or mechanical adjustment (earlier).
Engine Reseal
Case half reseal, oil return tube replacement, and chain tensioner service for leaking engines.
Cooling System Service
Fan belt, thermostat, and cooling tin inspection. Oil cooler service and ducting repair.
Suspension Refresh
Shock and strut replacement, control arm bushings, and alignment with period-correct geometry.
Common Air-Cooled 911 Issues & Solutions
Every model has its common issues. Here's what we see and how we address them.
Oil Leaks (Universal)
Case reseal addressing oil return tubes, chain tensioner gaskets, and case half sealing surfaces.
Chain Tensioner Failure (964/993)
Dual-row chain tensioner upgrade. Prevents catastrophic timing chain failure.
Heating System Issues
Heat exchanger replacement and heater box service. Critical for winter driving.
Cylinder Head Stud Pulling (3.6L)
Case savers or Dilavar studs for engines with thread damage. Common on high-mileage 964/993.
Air-Cooled 911 Service Intervals
Factory-recommended maintenance schedule to keep your Air-Cooled 911 performing at its best.
Every 3,000 miles or 6 months
- Oil and filter change
- Valve cover inspection
- Cooling tin check
- Visual inspection
Every 15,000 miles or 2 years
- Valve adjustment (mechanical cars)
- Spark plugs
- Air filter
- Brake fluid flush
Every 30,000 miles or 4 years
- Transmission fluid
- Differential fluid
- Complete cooling system inspection
- Suspension evaluation
Why Your Air-Cooled 911 Needs a Specialist
Air-cooled Porsches require different expertise than modern water-cooled cars. Thermal management, oil-based cooling, and mechanical simplicity mean different diagnostic approaches. Our Porsche Classic certified technicians grew up with these cars and understand their quirks, common failures, and the art of keeping them alive for future generations.
Ready to Schedule Your Air-Cooled 911 Service?
Contact us today to schedule your appointment. Our Gold Meister certified technicians are ready to provide factory-level care for your Air-Cooled Porsche 911.