Older vehicles with distributor-based ignition systems need their timing checked on a regular basis, otherwise you can have a host of problems. Starting becomes difficult, idling will be rough, ...

Ignition timing is typically split into three types. The first is initial timing—that is, the amount of spark lead that is set using a timing light (aimed at the harmonic balancer) with the engine at ...

Let’s say you want to check the total timing on your engine but all you have is a fixed timing light and there are no degree marks on the balancer. No problem – you can make your own timing tape using ...