![]() ![]() You should line up the timing marks with a timing light to 0 BTC, shut. 5000 RPM 36 degrees My mechanical advance is coming in quickly at the lower RPMs, which works pretty good for my set-up (411 gears with a 2004R Trans with a 2800 stall converter). This means the timing is no longer computer controlled and can be adjusted at its base setting by rotating the distributor. If that sucker wants 20 degrees with no ill effects - give it 20 degrees. The results were achieved using a regular timing light (no advance wheel), and a degreed balancer. But - as noted in the headline - you tune to make the engine happy. Using Lars sheet, set my all in mechanical timing (sans vacuum advance) to 34 degrees (being very conservative), reconnected my vac advance and I occasionally get pinging under acceleration. Less common to see that initial number in a milder combination. I was concerned with getting a false degree reading - but that does not appear to be one of the symptoms. Includes comprehensive instruction booklet in English, Spanish, and French. I use that timing light and advance data as a guide - really common to see a hot engine want 16-18 initial and 36-38 total. I then tried to twist the distributor to get it to 10 degrees BTDC but. Started the engine and pulled the trigger on the timing light, and the timing was apparently way off because the pointer didnt align itself with any of the markings on the flywheel. Works on 6V and 12V vehicles (6V use requires a separate 12V automotive battery for power). Also marked 10 degrees BTDC on the flywheel and set the timing light to 0 degrees advance. The all-metal inductive pickup and durable ABS housing offer rugged reliability while heat resistant over molding on battery clips prevents burned fingers. Features a super bright Xenon flash that makes it easy to see timing marks - even in daylight. you set the timing light advance dial to 32 degrees, then rev the engine (vac advance hose disconnected) to 3500 rpm and see if the timing light shows 'TDC' on the timing marks on the engine. RPM/advance selector button and up/down buttons that increment or reduce the advance make operation simple and easy. Another way is with a fancy timing light that has a dial or advance display on it, theyre pretty common. Handy 2/4 cycle and RPM/advance mode lights help you keep track of settings and multi-task. Digital LED tachometer display reads 0-9999 RPM. Works on gasoline powered vehicles equipped with conventional, electronic, computer controlled, DIS, or 2-cycle ignition systems. Use to measure engine RPM and advance, and set initial timing, check and measure centrifugal advance, and measure vacuum advance. ![]() The ideal timing light for the heavy do-it-yourselfer or professional technician. Bosch's FIX 7529 Digital Timing Light features microprocessor-controlled circuitry and is loaded with advanced features including a bright LED display, mode indicator lights, and flashlight. ![]()
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