This is especially prevalent on engines with a chrome or stock timing chain cover that is actually bowing forward allowing the cam to "walk". On Chevrolet engines, if the timing is retarding 10 - 20 degrees inspect for cam-walk. The correct polarity is whichever connection gives the most retarded timing. Craftsman Advance Inductive Professional Timing Light 9-21023 New Damaged Box. Reverse the connectors and check the timing again. Advanced: Daily Deals Brand Outlet Gift Cards Help & Contact Sell Watchlist. It is best to route it along a ground plain such as the firewall, frame or engine block to form a shield around it.Ĭheck the polarity of the magnetic pickup wires of the distributor. It should be routed clear of the coil primary wires and plug wires. If the light does not flash, you need to adjust the advance setting on the timing light. The light should flash when the spark plug fires. Once you have set the timing light to advance, you can start the engine and observe the timing light. Advanced: Daily Deals Brand Outlet Help & Contact Sell Watchlist Expand Watch List. Craftsman Professional Advance Inductive Timing Light 21023. Inspect the routing of the Magnetic Pickup Harness. Step 2: Start the Engine and Observe the Timing Light. Craftsman Professional Advance Inductive Timing Light 21023. Make sure you are not using Solid Core wires. Try another non-adjustable light and check the timing again. Dial back timing lights are not recommended. What kind of timing light are you using? Many lights have trouble reading the MSD's capacitive discharge multiple sparks. If your timing seems to be jumping all over the place, check the following items: This Xenon Timing Light with advance dial makes it easier to set ignition timing Read More. I guess I know what light to get now Thanks. Jeff Thanks here is the tech tip from MSD on lights.
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