The 1991 Toyota Celica GT has a freewheeling engine. Ought to the timing belt break or stretch previous its usefulness, there may be little probability that the valves may hit the pistons and trigger main engine harm. The producer recommends you alter the GT’s timing belt each 60,000 miles. You want a particular software to finish the process, and it’s obtainable via the Toyota vendor. It takes roughly 5 hours to alter the timing belt within the Celica GT.
1991 Toyota Celica GT Timing Belt Replace Instructions
Disconnect the battery's floor cable and lay the cable apart. Jack up the Celica GT and help it with jack stands. Remove the engine splash guard and the intercooler utilizing the suitable sockets. Remove the accent drive belt by loosening the tensioner and remove pressure on the belt.
Remove the alternator and its bracket utilizing the suitable socket and wrench. Remove the correct front wheel utilizing the lug wrench. Remove the suitable fender apron protect utilizing the suitable dimension socket.
Place the block of wooden on the ground jack. Assist the engine with the ground jack by jacking it up simply till it touches the underside of the engine. Remove the best engine mount and the mount bracket utilizing the suitable sockets. Remove the higher timing belt cowl.
Flip the crankshaft clockwise till the timing marks on the crankshaft and the camshaft line up. If the marks don’t line up the primary time round, flip the engine once more, and the marks ought to line up. The crankshaft mark is at eleven o’clock and the camshaft timing marks are at 12 o’clock.
Remove the auto tensioner securing bolts and the auto tensioner utilizing the suitable sockets. Remove the crankshaft pulley bolt utilizing the suitable socket. Remove the pulley utilizing the particular tool #09213-31021. Remove the lower timing belt cowl and the belt information washer. Remove the tensioner pulley retaining bolt and the tensioner pulley utilizing the suitable sockets. Remove the timing belt. Test the tensioner pulley to ensure it rotates easily. If not, change the tensioner pulley.
Install the tensioner pulley and tighten the bolt to 38 foot-kilos of torque. Examine the auto tensioner for oil leakage. If it leaks, substitute it. Press the pushrod towards a tough floor. In case you can transfer the pushrod, change the auto tensioner. Measure the pushrod the place it exits the auto tensioner. If the measurement will not be between .34 and .37 inches, change it.
Install the timing belt, beginning on the crankshaft sprocket and oil pump sprocket (on the similar time) and dealing counterclockwise across the information pulley and water pump pulley. Install the belt information washer and the timing belt lower cowl.
Install the crankshaft pulley and the crankshaft pulley bolt. Tighten the crankshaft pulley bolt to eighty foot-kilos of torque. Examine the crankshaft timing mark to make sure it’s nonetheless aligned. The notch within the pulley ought to line up with the zero mark on the timing scale printed on the block.
Install the timing belt across the camshaft sprockets and behind the tensioner pulley, conserving the timing belt tight on the non-tensioned facet (proper facet whereas dealing with the engine).
Push the pushrod within the auto tensioner utilizing a vise or press. Insert an Allen wrench by way of the outlet within the physique of the auto tensioner and into the outlet within the pushrod as soon as they line as much as maintain the pushrod in place. Tighten the tensioner pulley bolt to thirteen foot-kilos of torque. Install the auto tensioner. Tighten the bolts simply sufficient to carry it in place. Go away the torque wrench on the bolt, making certain that the deal with strains up with the camshaft sprocket.
Flip the crankshaft clockwise 5/6 of a flip, aligning the crankshaft pulley mark (the pointer mark, not the notch mark) with the 60-degree BTDC mark on the timing cowl.
Loosen the auto tensioner bolts. Insert the zero.seventy five-inch feeler gauge between the auto tensioner's physique and the tensioner pulley bracket. Maintain the tensioner in place and tighten the auto tensioner bolts to fifteen foot-kilos of torque. Remove the feeler gauge, the Allen wrench and the torque wrench from the tensioner pulley bolt.
Flip the crankshaft clockwise for one flip, lining up the crankshaft pulley mark (the notch, not the pointer) to the 60-diploma BTDC mark on the timing cowl. Measure the gap between the auto tensioner physique and the tensioner pulley bracket with the feeler gauges. The measurement must be between 0.071 and 0.087 inches. If the clearance is wrong, repeat the whole timing belt set up process.
Flip the crankshaft clockwise 2 1/6 turns till the No. 1 cylinder is at high lifeless middle. To make sure the No. 1 cylinder is at prime lifeless heart, insert an extended screwdriver into the spark plug gap whereas turning the engine. Once you really feel the piston come as much as the highest of the bore, the cylinder is at high useless middle. Examine that the timing marks are nonetheless lined up. Install the remainder of the components in reverse order of removing.
[source ehow.com]
