Timing chain positioning
Heard noise coming from behind timing chain cover. Vehicle started running bad and just stopped running.Took off valve cover and chain was very slack. Replaced timing chain and tensioner. Made sure my timing marks were in place . Took pin out of tensioner and rechecked timing marks 3 or more times and all 3 were in place. Turned the engine over a few times and all timing marks were off. I don't know if the cvvt system had effected it or not. I do not know what I should do now could you be so kind to let me know what to do next thank you VERY MUCH!!!!!!
My car has 160000 miles.
My car
Experienced mechanics share their insights in answering this question :
This system is a bit complex. I can give you some instructions, but I highly recommend getting a hold of a repair manual or purchasing a yearly subscription for just your vehicle from AllData. It is only $25 for a years subscription from AllData.
There are two separate sets of marks on this system. One set is for aligning the timing chain to the camshaft gears and the intermediate shaft gear. There will be marks on the chain that raps around the crankshaft gear as well. These marks will not line up after you turn the motor over.The other marks are on the inside of the camshaft gears and align with the cylinder head parting line. If you were to draw a ling through the center of both camshaft gears, they should line up with that imaginary line.
The crankshaft key way should be aligned with the mating face of the main bearing cap. You can confirm it is in the correct position by verifying the number one piston is at top dead center. If you have removed the balance shaft timing chain, these marks really need a visual diagram to understand where they should be aligned. Without a diagram I am not very confident it can be explained very clearly.
This may be difficult to to follow, so again I highly recommend purchasing a repair manual in digital form or a book. If you feel this is over your head, I recommend the following inspection to help you out. Timing chain replacement
Good luck! I hope I was able to help you.
How to Identify and Fix Common car Problems ?
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The GM 2.4L Ecotec Engine is known for timing chain issues, but in reality, the culprit of this issue are the tensioners. Just like the tensioner for your serpentine belt, the timing chain has two tensioners that put pressure on the chain to stay connected to the sprocket of the crankshaft and camshaft(s).
Timing belts are typically located in front of the engine and are often behind a cover for protection against dust and debris.
The 2006 Hyundai Sonata models powered by 2.0L, 2.4L, 2.5L, and 3.0L engines are equipped with timing belts. Only the Sonata 3.3L engine has a timing chain.
Newer models use timing belts made of polyurethane and Kevlar for long life and durability. They can go as long as 100,000 miles although it`s always a good idea to change it before then. Belt failure can cause extensive damage to the valves, pistons and other internal parts of the engine.
With proper oil changes and maintenance, a 2.4L TigerShark engine should last between 130,000 and 200,000 miles.
About 2.4 litre engines
As we touched on above, 2.4 litre engines are typically four-cylinders – and are usually the largest of their kind. By contrast, most 2.5 litre engines have five or six cylinders.
To help with installation timing belts are usually marked with marks that align with timing marks on the sprockets. If it`s fitted the wrong way round the marks won`t line up and either engine damage or madness will ensue.
The 2006 Sonata`s main issue is the broken piston or connecting rod. At first, owners heard a clicking or grinding sound coming from the engine. Apparently, the connecting rod or piston was prone to breakage, leading to engine failure. The standard fix is replacing or rebuilding the engine, and it`s a costly repair.
The 2006 Hyundai Sonata represents an excellent value for family car shoppers. Even without its price advantage, the car still holds its own by offering an inviting interior, lots of standard features and capable engine choices, all wrapped in an attractive body.
What`s a 2.4 liter engine? The L in 2.4L refers to the number of liters of air that a car uses on a full cycle of the pistons. The higher amount of liters can help increase power. The amount of liters also affects the registration cost, insurance and maintenance.
If you have a 4-cylinder model from 2003-2007, you engine has a timing chain; if you have the V6 model from those years, it`s a timing belt.
The Hyundai V8 uses a chain. The most common engine timing problems are with the variable valve timing actuators, oil control valves and oil-powered tensioners. These components can fail quickly if the owner does not keep up with the oil changes or uses the wrong oil.
If you have a 4-cylinder model from 2003-2007, you engine has a timing chain; if you have the V6 model from those years, it`s a timing belt.
No. Some have timing chains. Some are rotary.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
need a way to retain the timing chain
ANSWER : The best way to approach this unfortunately is by using a timing chain tool retainer/holder tool. You may consider having an expert from YourMechanic come to your home replace the timing chain.
Timing chain positioning
ANSWER : This system is a bit complex. I can give you some instructions, but I highly recommend getting a hold of a repair manual or purchasing a yearly subscription for just your vehicle from AllData. It is only $25 for a years subscription from AllData.
There are two separate sets of marks on this system. One set is for aligning the timing chain to the camshaft gears and the intermediate shaft gear. There will be marks on the chain that raps around the crankshaft gear as well. These marks will not line up after you turn the motor over.The other marks are on the inside of the camshaft gears and align with the cylinder head parting line. If you were to draw a ling through the center of both camshaft gears, they should line up with that imaginary line.
The crankshaft key way should be aligned with the mating face of the main bearing cap. You can confirm it is in the correct position by verifying the number one piston is at top dead center. If you have removed the balance shaft timing chain, these marks really need a visual diagram to understand where they should be aligned. Without a diagram I am not very confident it can be explained very clearly.
This may be difficult to to follow, so again I highly recommend purchasing a repair manual in digital form or a book. If you feel this is over your head, I recommend the following inspection to help you out. Timing chain replacement
Good luck! I hope I was able to help you.
Replacing timing chain 2004 Mazda 6
ANSWER : Hello – if the mechanic waited until the car was re-assembled after the water pump job to suggest timing chain repair, then "yes", s/he was not doing you any favor. Doing the timing chain repair separately is essentially repeating the labor. There are a number of related parts involved in a timing chain service: the timing chain itself, one or more timing chain guides, a tensioner, an idler puller(sometimes), and various o-rings and seals. Many parts manufacturers package these as a "kit", and the technician simply orders the correct kit for your engine in order to be sure they get all the right bits. I recommend a timing chain service performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.
My mechanic is saying the timing chain is bad (causing oil leaks). Does a timing chain cause oil leaks? What are your thoughts?
ANSWER : Hi, thanks for writing in. Timing change themselves cannot cause an oil leak but the timing chain cover can cause an oil leak. In order to replace the timing cover gasket, you will have to remove the serpentine belt and anything that has belt driven. This includes the alternator power steering pump air conditioning compressor and crankshaft pulley as well as the water pump. Once all of this is remove the timing cover can be removed and the gasket can be replaced. I would strongly recommend having this job performed by a professional as many parts are required to be removed in order to even access the timing cover. Here at YourMechanic, we can have a technician come to your home or office to perform this replacement for you.
Change my timing chain. Got it on time from upper to lower chain tensioners and now I have no spark.
ANSWER : Hey there. I would recommend checking the camshaft position sensor as this sensor is located near the timing components, to be sure that it is plugged in correctly and working properly. I would also suggest checking the crankshaft position sensor just to be sure it is also plugged in correctly.
As you know, both of these sensors will impact whether or not the motor will produce spark. If either of these are not the problem, you may want to then begin testing the ignition coils for power to be sure they are providing current to the spark plug wires. If you would like to have a professional scope this out for you, a certified technician from YourMechanic can come to your car’s location to inspect the issue getting spark.
Is the 2009 Sentra 2.0L a timing chain or timing belt? Also when would that need changing?
ANSWER : Hi there. One of the cool things about Nissan four cylinder engines is that they have a timing chain as opposed to a belt. This helps to extend parts life and reduce internal engine failure. The key is to stay on top of routine oil changes and service; including flushing radiator frequently to avoid overheating problems.
if an engine is rebuilt, does that include the timing chain also?
ANSWER : Hi there. Why was the engine rebuild performed? That model year Camry does not have adjustable lifters; they are hydraulic and depend on proper oil pressure to operate properly. These lifters also have to be primed with oil prior to installing during an engine rebuild. There is also the camshaft carrier that has small oil ports to feed the camshafts and lifters with oil. If the technician that performed the rebuild applied too much sealant, one or more of the oil passages could be blocked or restricted resulting in the noise you’re hearing. Then there is also the possibility that the noise could be in the lower part of the engine or an accessory. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts and determine where and what is causing the noise. Your Mechanic has several available technicians that can assist you with an engine is making a noise inspection.
Is it necessary to replace the timing chain during a ring replacement job?
ANSWER : In the course of performing the recall the timing chain needs to be removed in order to perform the service. The chain does not need to be replaced but does need to be removed. If the dealer will replace the chain and charge for the part only, then go for that. If they try and charge additional labor for the replacement chain, then ask why when it needs to be taken off when the job is performed. There should not be additional labor.
