Of course it's best to use the service manual, as it has all the diagrams. I used a timing light to find that the timing marks were moving back and forth. If you don't have the service manual, one way to set the timing is to mark the position of all sprockets with the old belt still installed and then use those marks to set the new belt properly. My 88 truck was making a sound like marbles flying around inside. In some cars, the intermediate shaft or the balance shaft must also be aligned with a camshaft and the crankshaft. Neither is better or worse, only different. Belts are lighter, cheaper but need to be changed (50k - 75k miles). You can turn it over before you put the timing chain cover on and hand crank the motor at the crank to check your work and verify everything is lined up proper. Chains last longer (rarely need to be changed) but are more expensive. The valves will not make contact with the pistons if the timing chain were to break while driving. Each vehicle has a way to align the timing belt with the camshaft(s) and the crankshaft. BMW engines use chains, as do many high-end European cars. Q: How can I set the timing belt A: When the timing belt is replaced, the new belt must be set according to the timing marks so the camshaft(s) will be precisely timed with a crankshaft. You can just call your local dealer service department or a repair shop for an estimate. Many manufacturers are switching to a timing chain because of its long-term benefits over. But Toyota made the shift in 2004 to the timing chain for all its trim levels. The Tacoma V-6 engine has been running on timing belts since its introduction. along with the timing belt this obviously will cost more. While timing belts are a type of timing chain and share many of the same functions, you can easily. Hence, timing belts help reduce the initial cost of the vehicle, but are costly in the long haul. Often your mechanic may recommend replacing a water pump or some other parts, such as, tensioner, seals idlers, etc. The cost to replace a timing belt may vary from about $200 to $750 depending on a model. You can check the "Timing Belts" section of website to see if you have and an interference or non-interference engine. The damage will be less extensive in a non-interference engine but in either case, the engine will stall, leaving you stranded. ![]() This may result in a heavy damage to the engine with broken or bent valves, damaged pistons and, possibly, destroyed cylinder head and block. This will cause the pistons to strike the valves that left open. ![]() The heavier crankshaft will continue rotating by inertia, moving pistons up and down. Before timing belts were introduced mid-1960s, virtually every four-stroke engine used a timing chain, which tend to be noisy. However, you need to know that this is an important repair or replacement that must be made otherwise, it can spell disaster for the entire engine and the car itself. ![]()
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