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The 1985 Mazda RX-7 is a classic two-door coupe powered by a 1.1-liter N2 engine, producing between 91 to 111 horsepower. Manufactured by Mazda Motor Corporation in Hiroshima, Japan, this gasoline-powered passenger car is lightweight, falling under Class 1 with a gross vehicle weight rating of 6,000 lbs or less.

Decoded VIN:

Make

MAZDA

Manufacturer Name

MAZDA MOTOR CORPORATION

Model

RX-7

Model Year

1985

Plant City

HIROSHIMA

Vehicle Type

PASSENGER CAR

Plant Country

JAPAN

Body Class

Coupe

Doors

Gross Vehicle Weight Rating From

Class 1: 6,000 lb or less (2,722 kg or less)

Gross Vehicle Weight Rating To

Class 1: 6,000 lb or less (2,722 kg or less)

Displacement (CC)

1147.094480

Displacement (CI)

Displacement (L)

1.147094480

Engine Model

Fuel Type - Primary

Gasoline

Engine Brake (hp) From

Engine Brake (hp) To

111

Seat Belt Type

Manual

Most common problems:

Oil consumption

The rotary engine in the 1985 Mazda RX-7 is known for high oil consumption due to its design, which requires oil to be injected into the combustion chamber to lubricate the apex seals.

Apex seal wear

The apex seals in the rotary engine are prone to wear and can cause loss of compression, leading to poor performance and starting issues.

Overheating

The rotary engine can generate a lot of heat, and the cooling system must be well-maintained to prevent overheating, which can cause significant engine damage.

Vacuum leaks

Vacuum leaks are common and can cause erratic idling, poor performance, and difficulty starting.

Ignition system issues

The ignition system, including spark plugs and ignition coils, can fail or wear out, leading to misfires and reduced engine performance.

Fuel system problems

Fuel injectors and fuel pumps can become clogged or fail, leading to poor fuel delivery and engine performance issues.

Carbon buildup

The rotary engine can suffer from carbon buildup on the rotor housing and apex seals, leading to reduced performance and efficiency.

Engine mount wear

The engine mounts can wear out over time, causing excessive engine movement and vibrations.

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