![]() ![]() ![]() The timing belt is so essential to an engine’s performance because it controls the timing of the crankshaft and camshaft – much like the job of an orchestral conductor, who keeps an orchestra playing in time and correctly. The crankshaft manages the movement of the pistons, and the camshaft opens and closes the valves. Timing belts are designed this way so that they synchronize the rotation of the crankshaft and camshaft, which regulate the engine cycle. The timing belt is made up of teeth that are placed correctly and tightly around various pulleys on the engine, plus the crankshaft and camshaft. If this happens, the repair costs for fixing a car with a broken timing belt can be several times more expensive than if they had just paid to replace the belt itself. Some owners neglect to follow the correct maintenance intervals and have the timing belt on their cars replaced on time. Thankfully there’s no short supply of professionals ready to help at a trusted auto repair shop near you. It’s a job that requires precision and knowledge to keep the engine running healthily and prevent premature failure. It’s not an easy job for a DIY mechanic to simply try having a go at. What are the symptoms of a bad timing belt and the reasons for replacing it? The reason for replacing your engine’s timing belt on a regular basis is because of the stress it’s put under over time, which causes it to wear out slowly. The rubber is strong, but they don’t last forever and eventually become weaker with age or usage like all rubber items. The firm rubber material is made up of nylon-reinforced cords that contain teeth. ![]() Timing belts need to be replaced at a certain age or mileage because of the way they’re constructed. After weeding though a couple of morons, I got a reasonable quote of $714 out-the-door for the belt, tensioner, and waterpump.Many car owners are familiar with the important routine replacement of their engine’s timing belt. One more thing: I also got a quote from the Nissan dealership. At the time I didn’t ask to see them, that’s just what he told me. Also, Mechanic #1 said he saw “stress cracks” in the upper tank. So, since I live in AZ (extreme climate) and they are both 12 years old and both had the original radiators, should I get the radiator replaced when I do this timing belt on the Pathfinder? I don’t want to have to pay that labor again if that radiator will last me maybe another 3 years? And since MikeinNH mentioned radiator hoses, I wonder about doing the radiator also, which I have quoted at $320. My OTHER '99 Nissan (a Frontier w/ the 3.3L V6) just had the fan clutch and radiator replaced. My next question has to do with the radiator. I am hoping that someone will be able to offer me their thoughts on the discrepancies between the two shops- which one is right? And is the second shop charging too much? He believes the other shop is mistaken to say they will replace the camshaft seals and front crankshaft seal at no additional charge. He also states that the Pathfinder’s seals are something like 4.8hrs of labor because they are not located in the front just behind the timing belt pulleys (where the seals on the 3.3L V6 Frontier engine are located) and he does not recommend that I do the seals based on the cost of the labor and he has not had problems with them leaking. There was no mention of a “timing belt kit” which would include the tensioner (or so i have been told).Īnother shop is quoting more because he charges the “suggested retail price” of the timing belt kit because he says the tensioner should be replaced with the belt. The labor-only cost for the timing belt, water pump and seals is $450, and the cost for the timing belt itself is $42, with the grand total being $675 (including water pump and coolant). One shop told me they would replace the camshaft seals and front crankshaft seal at the same time. I have a '99 Pathfinder with the 3.3L V6 engine with 102k mi on it and need to get the timing belt replaced. ![]()
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