Ignition - Establishing a TDC reference point

Establishing an accurate TDC reference point is of paramount importance when developing and monitoring ignition timing (and cam timing come to that). Terminology - TDC - Top Dead Centre BTDC - Before Top Dead Centre Establishing an accurate TDC reference point is of paramount importance when developing and monitoring ignition timing (and cam timing come to that). When an experienced engine builder assembles an engine - no matter whether for road or race - he will establish an accurate TDC indicator that can be used for ignition purposes. Usually contrived as a rigid pointer aligning to a corresponding mark on the crank pulley in a position easy to see with the engine installed. Unfortunately, many of us have to deal with engines that haven't had such attention to detail - so either have to make do with the standard ignition timing graduated scale if it's there or sort something else out.

C-AJJ3322 - MINI SPARES FIXED ADJUSTMENT BELT DRIVE KIT

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimises valve train noise - desirable advantages that do not diminish with time. The fibreglass reinforced belt all but eliminates the excessive stretch suffered by chain driven systems-even when a tensioner is used.

C-AJJ3328 MINI SPARES VERNIER ADJUSTABLE CAM BELT DRIVE

No Longer Available see C-AJJ3328RACE

The ubiquitous toothed belt cam drive system, originally developed for high performance race engines, is now generally accepted as the norm on all state of the art modern engines.

C-AJJ3328RACE MINI SPARES VERNIER ADJUSTABLE CAM BELT DRIVE KIT - FITTING INSTRU...

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimising valve train noise. Desireable advantages that do not diminish with time. The fiberglass reinforced belt all but eliminates the excessive stretch suffered by chain driven systems - even where a tensioner is used.

C-AJJ3326 MINI SPARES SLIDE ADJUSTABLE BELT DRIVE KIT

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimising valve train noise. Desirable advantages that do not diminish with time. The fiberglass reinforced belt eliminates the excessive stretch suffered by chain driven systems - even where a tensioner is used. The protracted control of cam and ignition timing maintains peak performance. Chain drives cause excessive timing scatter, even after relatively short periods of running. The MINI SPARES kit enables A-series owners to benefit from such technology. The adjustable cam gear in this kit allows up to 9 degrees of adjustment, facilitating accurate cam timing. An absolute must when installing a performance camshaft.

FITMENT: Remove the original timing cover. Position gears so that the timing marks on cam and crank gears are adjacent, then remove gears/chain assembly. Remove locating keys. Clean cam and crank gear boss surfaces, ensuring new gears are no more than a l

C-AJJ3326RACE MINI SPARES ROTA- ADJUST CAM BELT DRIVE KIT

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimising valve train noise. Desirable advantages that do not diminish with time. The fiber glass reinforced belt all but eliminates excessive stretch suffered by chain driven systems - even where a tensioner is used. The protracted control of cam and ignition timing maintains peak performance. Chain drives cause excessive timing scatter, even after relatively short periods of running.