MINI & MOKE DUPLEX STEEL CAMSHAFT TIMING GEARS WITH EVO/IWIS CHAIN [C-AJJ3325EVO]

PRODUCT OVERVIEW

Ultra-light non-adjustable steel duplex cam timing gear and chain set to suit Mini and Moke A-Series engine builds.

This kit is supplied with a race-quality limited-stretch EVO / IWIS duplex chain, lock tab and countersunk screws, making it a strong upgrade over old worn timing gears or standard single-row chain setups.

The camshaft is only as accurate as the timing drive controlling it. A worn or stretched timing chain can allow cam timing and ignition timing to scatter, reducing power, throttle response and engine efficiency. Replacing the original setup with a quality duplex gear and chain set helps keep the camshaft and crankshaft working together more accurately.

SPECIFICATIONS

• Suits: Mini and Moke A-Series engines
• Timing type: Duplex cam timing set
• Gear material: Steel
• Gear style: Ultra-light, non-adjustable
• Chain type: EVO / IWIS limited-stretch duplex chain
• Use: Road, fast road and performance engine builds
• Supplied with: Lock tab
• Supplied with: Countersunk screws
• Application: Camshaft drive system upgrade

WHY UPGRADE TO DUPLEX TIMING GEARS?

Many 848cc, 948cc, 998cc and 1098cc engines were originally fitted with a single-row simplex timing chain. These can stretch quickly, causing inaccurate cam timing and poor ignition timing control because the distributor is driven from the camshaft.

A duplex timing set uses a double-row chain, giving a stronger and more stable cam drive. This helps reduce timing scatter and is especially important when building a performance engine or fitting an upgraded camshaft.

IMPORTANT ENGINE BUILD NOTE

Do not rely only on the basic “dot-to-dot” timing method when building a performance engine. Manufacturing tolerances can leave cam timing out by several degrees, which can cost noticeable power, especially in small bore or race engines.

For best results, always check and set cam timing accurately during assembly.

REBUILD ADVICE

With the timing cover removed, rotate the crankshaft slightly back and forward and watch the camshaft movement. The camshaft should move at the same instant as the crankshaft. Any delay usually indicates chain wear or excess slack.

If you are rebuilding the engine, this is the right time to replace worn timing components rather than refitting old gears and a stretched chain.