The 1991 Acura Integra timing belt substitute is critical due to the stretching of the belt slightly than from put on. The timing belt has a spring-loaded tensioner that has restricted journey. When the belt stretches past the bounds of journey of the tensioner, the tensioner turns into ineffective at protecting pressure on the belt. When this occurs, the belt can come off. Acura has recognized this engine as an interference design, which signifies that within the occasion of a belt failure, catastrophic harm would happen. To stop this, Acura suggests changing the belt at 90,000-mile intervals.
1991 Acura Integra Timing Belt Replacement Directions
Elevate the front of the Acura Integra, and help it on jack stands. Remove the left wheel, utilizing the ½-inch drive breaker bar and the suitable socket. Remove the internal splash protect, utilizing a ¼-inch drive socket. Remove all of the accent drive belts, utilizing a wrench.
Loosen and take away the facility steering pump from the engine-assist bracket, however don’t take away the hoses. Simply transfer it out of the way in which. Use the suitable socket to take away the bolts. Remove the valve cowl, utilizing a ten mm socket.
Place the ground jack below the oil pan to assist the engine. Flip the crankshaft counterclockwise, utilizing the suitable ½-inch drive socket, till the timing mark on the crank pulley aligns with the “zero” mark on the timing cowl. That is high useless heart on the No. 1 cylinder. Remove the crankshaft pulley bolt, utilizing the suitable measurement ½-inch drive socket and breaker bar. Remove the pulley.
Remove the higher and lower timing belt covers, utilizing a ten mm socket.
Test the timing marks once more. The crankshaft sprocket mark ought to be aligned with the mark on the block on the eleven o’clock place. The camshaft sprockets have the phrase “Up” between the spokes with a corresponding mark straight above the “Up” mark. The road above “Up” needs to be precisely on the 12 o’clock place on each camshaft sprockets, and these marks ought to be aligned with the marks on the cylinder head, within the vertical place. There’s a mark on each sprockets, at three o’clock on the left sprocket and at 9 o’clock on the correct. Each of those marks should level towards one another. If the camshaft sprocket marks are usually not shut, flip the crankshaft yet another time and they’re going to line up. It takes two turns of the crankshaft for one flip of the camshaft sprocket.
Loosen the bolt on the belt tensioner with a wrench, push the tensioner away from the belt after which loosely tighten the bolt to carry the tensioner in place. Remove the timing belt. Install the lower timing belt cowl quickly, then push the crankshaft pulley on. Make any adjustment essential to align the crankshaft pulley completely with the “zero” mark on the quilt.
Insert a 5 mm Allen vertically into every camshaft bearing cap straight behind the camshaft sprocket to align the camshaft. Transfer the camshaft as essential barely so the Allen will insert into the groove within the cap. Depart these Allens in place for now. Remove the crank pulley and lower timing belt. Install the timing belt, beginning on the left aspect, protecting all the stress on this aspect away from the tensioner. Loosen the tensioner bolt and permit the tensioner to function.
Verify the camshaft sprocket timing marks and reinstall the lower timing belt cowl and crankshaft pulley, then recheck the timing marks. Install the crankshaft bolt. flip the crankshaft two turns counterclockwise and realign the timing marks. This helps the tensioner soak up all of the slack within the timing belt and checks for misalignment of the timing marks. Don’t try to show the crankshaft when you really feel resistance. This implies the timing marks are usually not correctly aligned and must be reset. If the marks are nonetheless aligned, flip the crank 4 extra instances and examine the marks for the final time.
Test the timing marks, them instantly from the front. For those who view them from the aspect there’s a completely different perspective and the timing marks may very well be off a tooth. One tooth off could be catastrophic. Install the remaining elements in reverse order of removing. Torque the crankshaft pulley bolt to one hundred eighty foot-lbs. of torque.
[taken from ehow.com]
