Mazda Timing Belt Intervals, Everything You Need To Know
A timing belt, timing chain, or cambelt is a part of an internal combustion engine that synchronizes the rotation of the crankshaft and the camshaft(s) so that the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes. In an interference engine the timing belt or chain is also critical to preventing the piston from striking the valves. A timing belt is usually a toothed belt, a drive belt with teeth on the inside surface. A timing chain is a roller chain. Cosworth BDR engine, with timing belt and pulleys Many modern production automobile engines use a timing belt to synchronize crankshaft and camshaft rotation; some engines, particularly cam in block designs, used gears to drive the camshaft, but this was rare for OHC designs. The use of a timing belt or chain instead of gear drive enables engine designers to place the camshaft(s) further from the crankshaft, and in engines with multiple camshafts a timing belt or chain also enables the camshafts to be placed further from each other. Timing chains were common on production automobiles through the 1970s and 1980s, when timing belts became the norm, but timing chains have seen a resurgence in recent years. Timing chains are generally more durable than timing belts—though neither is as durable as gear drive—however, timing belts are lighter, less expensive, and operate more quietly. Source: Wikipedia
Mazda Timing Belt Service Intervals Chart
Engine
Reference Key, Remarks
1.5L
{32}
1.6L DOHC
{32}
1.6L SOHC
Replace Every 60,000 Miles
1.8L DOHC 4 Cyl.
Replace Every 60,000 Miles
1.8L SOHC 4 Cyl.
Replace Every 60,000 Miles
1.8L V6
Replace Every 60,000 Miles
2.0L Diesel
{1}
2.0L DOHC (MX-6, MX3, Protege & 626)
{32}
2.0L DOHC (Tribute)
Replace Every 90,000 Miles
2.0L SOHC Gasoline
Replace Every 60,000 Miles
2.2L
Replace Every 60,000 Miles
2.3L 4 Cyl.
Inspect Every 60,000 Miles: Replace Every 120,000 Miles
2.3L V6 (1995-2000)
{32}
2.3L V6 (2001-02)
Replace Every 60,000 Miles
2.5L 4 Cyl.
Inspect At 120,000 Miles & Replace As Necessary
2.5L V6
{32}
3.0L DOHC
Replace Every 60,000 Miles
3.0L SOHC
{21}{32}
Reference keys, Mazda timing belts:
(1) - Manufacturer does not recommend a specific maintenance interval.
(21) - On 1989-98 MPV 3.0L models, at 60,000 miles inspect the tensioner pulley & replace as necessary. A worn inner bushing may allow the pulley to slant resulting in a torn or jumped belt.
(32) - On 1993-96 models, replace every 60,000 miles. On 1997-2006 inspect at 60,000 miles, then again at 90,000 miles. It is recommended but not required, but it should be replaced at 105,000 miles.
