Ancient Web: A 1979 RX-7 Kept Its Repair History in Plain HTML

Part of the Ancient Web Collection.

This particular Mazda RX-7 has an unusually complete maintenance record, because its owner spent years telling the Internet what went wrong.

Visit the Rotary Powered Webpage.

The hub of the personal site links wiring diagrams for 1979 through 1985, manuals, injector comparisons, dynamometer results and modifications. Its central artifact is a first-person 1979 RX-7 diary, which begins when the owner bought a disabled car for $350 in late 1994.

The engine had been transplanted from an '81 RX-7 and would not start. After tracing the missing ignition power, the owner found a loose fusible link in the steering-column harness. The account is candid about the trouble caused by mixing electrical parts from different model years. He had to change the wiring harness, vacuum components and carburetor before the car began behaving properly.

The repairs keep getting more interesting

The car was a daily driver until January 1997, when poor compression raised fears of a costly rotary-engine rebuild. A specialist revived it in April 1998 by dealing with carbon accumulation. In 1999 the author added later electronic ignition and improvised a fix for mismatched carburetor vacuum ports. He describes the result with the satisfaction of someone who has finally made both halves of a troublesome machine agree.

The diary continues through brake and suspension swaps, tire choices and instrument upgrades. In October 2002 an apex seal failed for real. The replacement engine was installed by November; in 2003 the car received GSL-SE suspension and larger brakes. A later entry says another engine failed during 2008, with the owner unsure whether oil loss caused the damage or followed it.

The author does not present every improvised repair as a universal recommendation, and readers should not treat decades-old experiments as current automotive safety instructions. What is unusually useful is the account of why parts were changed, including failures and reversals.

The main index still advertises scanned wiring diagrams and service manuals, although individual old links may fail and the site alone does not establish their redistribution rights.

This page is a garage notebook with hyperlinks, written while the car was still an ongoing problem. Its dirt-under-the-fingernails specificity is exactly what a polished restoration story tends to leave out.

Follow the 1979 RX-7's dated repair history.

Part of the Ancient Web Collection.