![]() ![]() If the timing is right, the timing marks on the motor appear stationary at zero. A cable attaches to your number one spark plug and detects the electrical pulse when the plug fires, sending an electronic signal to your timing light and causing it to flash. What timing lights doĪ timing light - in effect, a strobe light - is used in conjunction with the marks mentioned above. You can see if something is wrong but can’t do anything about it. It’s not that there’s anything wrong with the instrument itself - they can give you all the readings you need - but rather that there’s no way for you to adjust the timing without the kind of computer setup that’s usually only found in dealerships and professional auto shops. This is important because a number of high-end timing lights say they work with electronic, computer-controlled, and distributorless ignition systems (DIS), but that’s a little misleading. Without these marks, a timing light simply can’t be used. Sometimes they’re on the fan pulley, sometimes the flywheel, and occasionally on the timing belt/chain cover. If you can do the job, there will be a set of visible timing marks somewhere on the motor, most often on the end of the crankshaft pulley. ![]() It should probably bear the words “Hands off!” Unless you’ve got a computer, you aren’t going to adjust the timing on that baby. Lifting the hood just presents you with a big lump of featureless plastic. ![]() Many motors built since the 1990s have no distributor or spark plug cables. Most motors built since the 1980s have electronic or breakerless ignition. The first thing you need to do is establish whether the job can be done. With older vehicles, it could just be because your engine shakes a fair bit! Whatever the cause, things aren’t running as they should. Classic and collectors’ vehicles often have points in the distributor that need changing sooner or later. The timing chain stretches out eventually. General wear and tear can cause your timing to run out. As one expert put it, on a V8 engine, it looks a bit like a rubber octopus! Older vehicles use a distributor that has spark plug cables sprouting out in all directions. In a gasoline engine, ignition timing sends an electric current to each spark plug at precise time intervals and in a predetermined sequence (diesel engines don’t have spark plugs). If you have the right setup, these tools can also be used for bench testing. Your engine doesn’t have to be in the vehicle to check its timing. We’ve also included a number of recommendations that showcase the variety of high-quality, great-value tools available. To help clarify the important timing light features, we’ve put together this comprehensive buying guide. The not so good news is that if you’re looking to buy your first timing light, the capabilities and jargon can be a bit confusing. All those things add up to excess stress on the engine - and your wallet! The good news is that there are plenty of timing lights to choose from, and something for any budget. If your spark plug timing is off, all kinds of things can go wrong, from difficulty starting, poor acceleration, and an overall drop in performance to backfiring, strange “pinging” noises, and higher gas consumption. Checking and setting the timing correctly isn’t a complicated job for the home mechanic as long as you have an accurate timing light. That firing is controlled by the ignition timing. * Price comparison must be based on comparable brands or models and in bulk quantity purchase.In order for your engine to run properly, the spark plugs have to fire at exactly the right moment. We then know we need to work harder in sourcing to create values for you. If we lose to a competitor, it is our shame. Most of the time, we will match or beat their price, and give you a credit. If you discover any competitor outselling us in a particular product, whenever you purchase in large quantity, please bring it to our attention. Why? Most of the time, shipping a 10 lb parcel does not cost 10ĭon't be shy. Essentially, you are paying 10 times on shipping. Some merchants offer FREE shipping, but when you buy quantity 10, you pay 10 times total. Unlike those wholesale to public membership clubs, we do not charge any membership fee. The philosophy to offer quality products with little mark up has created unmatched customer loyalty for some successful membership based stores. Heavy Equipment & Agricultural Suppliesīecause we are a major distributor for some products, we price very aggressively by sacrificing profit margin whenever we sell in bulk. ![]()
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