The time belt is made of a hard rubber compound. The is prone to stretching and tearing together it rotates really quickly between the engine pulleys. Replacing the belt is difficult, however the job is much simpler if no engine damages has occurred.
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This article applies to the 4th generation Toyota Camry (1997-2001).
The timing belt connects the crankshaft, camshaft, water pump and oil pump together. As soon as this belt breaks, all engine strength is lost. A time belt have the right to be confirm visually by remove the timing belt covers; although, belts that show up unworn by eye might still break. Engine damages can result when the belt breaks on an interference engine. Interference describes the call that have the right to be made when the pistons to win the valves top top a wrongly timed engine. The VVT-i version of these engines have actually an interference design. If your belt broke on your VVT-i engine, you may want to perform a leak down test to confirm your valves/pistons room not damaged.
The Toyota Camrys come equipped with a 4-cylinder (5SFE) or 6-cylinder (1MZFE) engine. Every engine"s recommended timing belt replacement interval is 90,000 miles. As soon as replacing the timing belt, it"s recommend to to buy a timing belt kit. Kits will encompass a time belt, water pump, and also idler pulleys.
Materials NeededSocket set (8mm-21mm)3/8" and 1/2" ratchetsVariety extension lengthsPry barImpact wrenchStud removal device (V6 engine)2 wheel chocksFloor jack2 jack standsBreaker barFlat head screwdriverBlock that woodGasket scraperDrain panShop ragsBrake cleaner2 gallons of coolant1 time belt kit with water pump
The 4-cylinder and also 6-cylinder engine timing belt replacement measures differ slightly. Some points to note on the 1MZFE engine are:A 10mm stud stop the water pump to the block top top this engine. A stud remove tool can be used, otherwise the camshaft sprockets and also timing belt cover will must be eliminated first.The tensioner will use tension to the belt together the tesnioner bolts are tightened. Over there is no different tensioning spring.
Use figures 1 and also 2 to familiarize yourself v the timing system components on the 5SFE engine.Figure 1. The timing belt diagram.Figure 2. The time belt components and also alignment marks on the 5FSE engine.
Step 1 – advanced the prior of the vehicle
Engage the parking brake and chock the behind wheels. If you do not have actually an influence wrench, ease the lug nuts on the passenger"s side front wheel, but do not remove them. Making use of your floor jack, raise each front wheel and also place jack was standing under the frame rails. A block the wood have the right to be supplied to minimize the hazard of damage caused by the jack stands.
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Step 2 – eliminate passenger"s next front fender apron seal
Behind the passenger"s next wheel is the apron seal. 2 10mm bolts hold it in place. Remove will offer you access to the harmonic balancer and also timing cover.
Step 3 – drainpipe the coolant
Place a drainpipe pan under the radiator and loosen the radiator drain plug.
Step 4 – loosen the crankshaft pulley bolt
Use your impact driver to remove the bolt. If you execute not have an affect driver, a breaker bar have the right to be placed against the soil or vehicle frame. The engine will spin clockwise, therefore be certain you place the breaker bar in a location where it will not move and damage the car. V the breaker bar locked in place, turn the ignition to the start position for one second. This must make the bolt loose enough for removal through a ratchet.
Once the bolt is able to rotate, usage it to relocate the harmonic balancer back into top dead facility alignment through the time belt cover. A fast counterclockwise twist through the ratchet have to not harass the pulley"s alignment and also make it feasible to completely remove the bolt.
Step 5 – eliminate the strength steering belt
Loosen the power steering adjustment bolt with a 12mm socket. Utilizing a lengthy pry bar, lift the power steering pump in an increase direction to remove the belt.
Step 6 – remove the alternator belt and also bracket
Disconnect the 3 ground straps discovered on height of the timing cover. Friend will need to squeeze the functional tabs ~ above the connectors to different them. Loosen the alternator mediate locking bolt and also pivot bolt until the alternator deserve to be relocated far sufficient for belt removal. Eliminate the alternator bracket bolt and also bracket, then eliminate the camshaft position sensor wire clamp. Separate the connectors by squeezing and pulling castle apart. Number 1 has views of both the alternator bracket and camshaft position sensor wire clamp.
Step 7 – remove the engine regulate rod and mounting bracket
Support the engine by put a wood block on your floor jack and pushing against the oil pan. It does not need to be raised much, but just sufficient to remove the engine"s load from the motor mount. Eliminate the 3 bolts from the engine manage rod, and then the 3 bolts from the engine mounting bracket. The clip is shaped like a triangle and bolts deserve to be uncovered at each corner.
Step 8 – eliminate the timing belt covers and also harmonic balancer
Remove the four 10mm bolts surrounding the upper timing belt cover, and then eliminate the harmonic balancer. If the balancer will certainly not pull turn off the crankshaft snout, two flat bars have the right to be provided as leverage. If you"re still can not to remove the balancer, you"ll require a bolt-type balancer pulling tool.
Now remove the lower timing cover and disconnect the crankshaft place sensor.
Step 9 – remove the timing belt
With the timing equipment sprocket and also camshaft equipment still at optimal dead center, use paint marks come the belt, gears, and also backing plates come ease new belt alignment. The old belt have the right to be laid against the brand-new belt to transfer the marks. This makes basic to see overview while tensioning the brand-new belt.
Remove the anxiety spring and idler pulley from the tensioner, then eliminate the belt.
Featured Video: exactly how to eliminate Timing Belt
Step 10 – eliminate the water pump
Seven bolts host the water pump to the block. Relocate your hand about the leaf of the pump to find them. When the bolts space loosened, have actually a drainpipe pan ready due to the fact that some coolant will certainly still it is in in the pump. Once the pump is removed, clean the block mounting surface with a gasket scraping tool. Rub the surface ar clean through brake cleaner and also a rag.
Step 11 – download the brand-new timing belt
Install the new idler pulleys. Position the tensioner idler wheel close come the camshaft to save tension turn off of the brand-new belt during installation. The tensioner idler sheave only requirements to it is in hand-tightened.
Begin routing the timing belt in this order: crankshaft gear, idler pulley, water pump, climate camshaft gear. As soon as the belt is routed about the camshaft gear, an alligator clip can be provided to keep tension on the belt in between the camshaft and crankshaft. Complete installing the belt onto the continuing to be pulleys. The painted alignment point out should enhance up with the gears.
Attach the idler pulley-block tensioner spring. Install the crankshaft bolt right into the crankshaft gear and also turn the engine clockwise two complete rotations. Inspect the pulleys to make sure the belt is appropriately aligned v the time marks. The belt need to be focused on the pulleys. If every is well, tighten the tesioner idler pulley.
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Step 12 – complete the installation
Reverse the remove procedure because that installation. The harmonic balancer bolts requirements to it is in torqued to around 100 ft.-lbs. Reassemble all of the time covers and dual check that the motor is timed correctly. Re-install the passenger"s side engine mount, and redo every one of the disassembled accessories on the next of the motor, consisting of your alternator. Before you start the car, make sure you have actually filled the cooling system. Leaving the lid off the cooling device to bleed every air native the system as the engine is warming. Permit the automobile idle and also listen for any kind of unusual noises. If everything checks out, reduced the automobile off the stands and go because that a test drive.