[Grady Clay]

Rebuild the pedal assembly, replace cables, accelerator linkage bushings, and the throttle “cushion" every 5-15 years depending on climate and use.

Do a “maintenance overhaul” on the engine and transmission before absolutely necessary. Paying attention and regular testing will tell you when. It is a LOT less expensive than waiting until something malfunctions. Additionally we all like to stay on top of the performance.

I agree about the brake hoses and would add the master cylinder at the same time.

Occasional fuel tank cleaning is important. How many ever inspect the filter screen in the tank?

Replacing the rear axle bearing every 100K or so is worthwhile.

I wouldn’t use a front ball joint more than 100K. If that fails, it does so just when you can’t stand it to fail.

This is also very use and climate dependant. If a 911 is driven regularly in moderate climates and not wet or in salt all the time; that dramatically extends the life of the systems. 911s that drive in the snow and rain and never get a chance to dry out are at risk. Of course exceedingly high temperatures take a toll also.

We expect a lot from our old 911s and it is unreasonable for them to attempt to go forever without maintenance and replacement of important components.


If you take your car on track regularly, I would up the schedule noticeably.
If you Club Race (PCA or SCCA) then I would go through everything annually or more.

Best,
Grady