If the timing belt has broken inside, the engine will not be able to turn over or ignite. … Some of the typical damage done to a vehicle with a broken timing belt includes damage to cylinder head hardware (rocker arms, push rods or valves), damage to crank bearings or the oil pump inside the oil pan.Jun 14, 2019
You cannot drive a car if the timing belt is broken, it’s as simple as that. The timing belt looks just like a rubber belt with teeth on the inside. … The most common thing that’s going to happen if your timing belt fails while you’re driving is that the valves are going to get bent.
A failing bad timing belt sounds like a ticking noise in front of your car when it starts wearing out. If the belt eventually breaks, it will give a whining noise when trying to start the engine. A whining noise sounds like no compression in the engine.
The average cost to replace a timing belt will be anywhere from $300 to $500 in total (more for larger cars, trucks, and SUVs). The timing belt itself will usually only cost less than $50 but the majority of a timing belt job is spent on labor. The cost of the labor will be anywhere from $250 to $450 or more.
The timing belt can fail without any prior symptoms, so if you’re within the mileage window, you should go ahead and have it replaced regardless. That being said, sometimes your car will give you a bit of warning that the belt is wearing out.
Engine Misfires or Runs Roughly
When your timing belt has worn down it will begin to affect your engines timing, causing misfires. Since the timing belt controls the action of the pistons within the engine if the belt is worn or lose they will move erratically if they move at all.
The manual for the Volkswagen Jetta says that you can keep your timing belt until 120,000 miles. According to the US Department of Transportation, the average driver in America travels 13500 miles per year. At that rate, A timing belt should last between 4.4 years and 7.4 years worth of travel.
Although timing belts are critical, there’s no need to replace them regularly –unless explicitly recommended in your owner’s manual. Some automakers recommend changing a timing belt between 60,000 and 100,000, others don’t. Many of today’s timing belts can go 100,000 miles or more without needing to be replaced.
Replacing the timing belt is an expensive service. It is an intricate, labor-intensive process that can take 4–8 hours, depending on the vehicle. But replacing the timing belt before it breaks will prevent engine damage and save you money in the long run.
Ticking or clicking noises in the engine.
When the timing belt wears out, it can cause a ticking or clicking sound to emanate from the engine. … If the tensioner has no oil pressure, the belt will become loose and possibly disengage from the pulleys and/or break.
But if you are and you enjoy doing your own repairs or restorations then it’s something you can do yourself, and save on some big repair bills in the process. We’ll walk you through the process of replacing a timing belt and water pump step by step, starting with the tools you’ll need.
Engine Won’t Start: If the engine timing belt has broken, it won’t be able to start. You may hear it “engage” as it is trying to start as you turn the key, but because the engine timing belt is what operates the camshaft and crank that turns the engine, it isn’t able to start.
A spring-loaded tensioner keeps the belt tight, but after a while the tensioner will run out of travel and the belt will go slack. Simultaneously, the metal teeth on the cam and crank sprockets will slowly round off the edges of the belt teeth, turning those neat teeth into sad little bumps.
Often times, it just breaks. That’s why most manufacturers recommend you have your vehicle’s timing belt replaced every 60,000 to 100,000 miles. Refer to your owner’s manual to see what is recommended for your specific model.
I call this method of adjustment, “Timing by ear”, because you literally set the timing by sound. It’s not as hard as it sounds (no pun intended). Automotive manufactures do supply ignition timing setting for every application. You could simply use a timing light, and set the engine to that setting.
If the timing is off, damage can occur. In some engines, called “interference engines,” the consequences can be especially bad. … You could end up having to have your engine rebuilt, or even replaced. If your cam timing is off, chances are you’ll know because your car will not be running well, if it’s running at all.
The timing belt itself isn’t an expensive part. The time and labor are what make it so expensive. To get to the timing belt, the engine needs to be disassembled. Doing so takes significant time and effort.
Having a timing belt replaced before it breaks will cost between $500 and $1,000 on average while waiting for it to break before replacing can cost upward of $2,000 or more.
Incorrect timing is the most overlooked and misdiagnosed cause of a no-start. Perhaps you automatically think of ignition timing as the position of the crankshaft when the No. 1 plug fires. While this is important, it isn’t the only timing condition that can influence a no-start.
A broken timing chain will cause an engine to not start or fail while driving. If the belt is already broken, the engine won’t have enough compression to start. … If your engine won’t start or starts driving rough, indicating it may be on its way to failing, contact a certified mechanic for inspection and repairs.
Overheating. If ignition timing is too far advanced, it will cause the fuel-and-air mixture to ignite too early in the combustion cycle. This can cause the amount of heat generated by the combustion process to increase and lead to overheating of the engine.
to set your base timing without a light, you just turn the motor over in it’s normal direction of rotation until the mark lines up with where you want it.. loosen up the distributor and hook up a spare spark plug to the #1 plug wire.. turn the distributor until it sparks..
Turn the distributor in a counterclockwise direction to advance the ignition timing. Do not over-adjust the distributor, as even a slight movement will yield a significant change in the ignition timing.
If the valve timing is incorrect, not only will the engine not run, but the piston could smash into the valves, causing catastrophic damage. Usually, the result is bent valves and damaged pistons.
Will timing cause engine to run rich? A well timed ignition will allow the engine to run powerfully and efficiently. The timing needs adjustment when the engine runs too lean or too rich.
timing belt failure symptoms
what happens when timing belt breaks while driving
will a broken timing belt destroy my engine
how to tell if timing belt is off a tooth
how long can you drive with a bad timing belt
bad timing belt sound
timing belt diagram
what causes timing belt to break