Please help me I want to replace the timing belt 1990 honda acord,how srt up timeing mark,wich side no one cylinder if you look front of the engin

The cam have two notches on the side Wich have to line horizontal with the engine cover surface along with the cam spoke label up.
the crank pully also have some mark but it's on the inner side of the crank pully beside the engine belt usually a few close together and one by itself lining up to the timing cover above the crank pully

To fire the Gas, you need Compression (Have you checked the Compression)...

Spark

Fuel (Injected requires 40 PSI)

Provide more information please

The way I do it..... Take no 1 cylinder to top dead center by putting a long screw driver in the cylinder that is closest to the timing belt.... be careful and have someone help you with the screw driver so it don't get in any bind.... on the cam it says ( up ) with the cam in the up position there are two marks on each side.... line them up with the head they run level with the top of the head... where the valve cover meets the head.... If there is a balancing shaft you have a mark on it .... also on the block... The most important thing is to start the belt on the bottom and come over the cam on the front of the car. not on the side where it goes around the water pump. I found out if you go the other way and tighten the belt the top cam will move to take up the slack.... you will be off one tooth... advanced.... I hope I helped you out....sorry no pics but I just put another one together...

Most likely the timing is way off. The engine will start when it is in time and when it is 180 degrees out of time. The timing marks on the cam and the crank will line up correctly once when it is #1 TDC and once when it is 180 degrees out of time. The problem happens when you have the Crank at #1 TDC as it should be and the cam is set incorrectly in most cases. If both valves on the head for the #1 are not closed with the intake open and the exhaust closed for the next cylinder in the firing order your cam is not set correctly even though the timing mark appears to be correct. If the previous timing belt broke while the engine was running odds are every valve will need to be replaced because they are bent. VW did not use a no contact engine in this year model which would have locked the valves in the closed position if the belt broke. If this in fact the case you can verify this by doing a compression check on the cylinders. If you have 0 compression on any cylinders you have bent valves. You can also attach an air compressor to a compression check hose and apply air pressure to each cylinder, if you don't get pressure in the cylinder the valves are either bent or not closing properly.

My bet is distributer is incorrect. Pull #1 plug, place finger over hole, turn over until compression stroke, look at timing marks, then pull dist cap and se where the rotor is pointing.

Pop out the spark plug in number 1 cylinder. Drop a long 1/4" drive extension in the cylinder. Turn the crankshaft until the timing mark on the crank pulley meets "0" and the extension is at it's highest point of travel. This is your correct crank position for timing. Pop the cover off and find the indentation or arrow on the outside front of the cam sprocket and align it with the corresponding mark on the head or cam cap. If you're only talking about using a timing light, then lossen the distributor bolt at it's base and turn the distributor until the mark is at 0. Engine must be at normal operating temp.

Disconnect the wire harness at the distributor.Remove the spark plug closest to the drivers side front tire. Place the palm of your hand over the valve covers empty spark plug hole and have a helper crank the motor over until air pressure pushes past your the palm of your hand. Next, look at the cam shaft wheel and note the direction that the arrow is pointing, the arrow should be pointing straight up IN RELATION TO THE ENGINE not the earth. If it is not, you will need to manually rotate the engine till the cam wheel is infact pointing straight up. Next, Jack up the front of the car and support it with jack stand and remove the front drivers side tire.Next, support the weight of the engine with a floor jack remove the motor mount closest to the drivers side tire To remove it you will need a deep 17mm socket on a heavy duty breaker bar. Next, loosen and remove the power steering belt and alternator belts. To loosen and remove the belts you will need a 10mm wrench and a 12mm wrench. And also a 14mm or 15mm wrench. Next, use a 19mm socket AND an air powered IMPACT wrench to remove the bolt holding on the crank shaft pulley. Next, remove the crankshaft pulley. Next, use a 10mm wrench and/or 10mm socket and remove the bolts holding the plastic engine side cover. Next, loosen the 14mm or 15mm bolt which secures the 2 belt tension wheels. Next, LOOSEN the 10mm bolt that is on the balance shaft tensioner. The balance shaft is the cogged wheel with a small timing mark dot on the side of the wheel. Next, loosen the 10mm bolt on the timing belt tensioner. It's obvious what wheel is the timing belt tensioner. Next, remove the 12mm bolt on the back side of the block (near the balance shaft) a little bit of oil will drip out, this 12mm bolt will allow a long bolt to be inserted into a recessed channel of the balance shaft. This recessed channel is needed to lock the balance shaft in place. A bolt from the air conditioner works great for locking the balance shaft in place. You're basically just pushing the bolt in a hole to keep the balance shaft from spinning. Next, remove both the balance shaft belt and timing belt. Then reverse the procedure to complete the new belt installation. EXTREMELY IMPORTANT!!!!!!!!! PLEASE NOTE, the oil pump wheel furthest to the left (closest to the radiator), has a timing mark on the flat face side of the wheel, that timing mark has to be pointing directly to the 9:o'clock position in relation to the engine. The cam wheel has an arrow on the side of one of the "spokes" ...make sure it is pointing straight up in relation to the engine...straight away from the crank shaft. Put the crank wheel on with the arrow pointing straight up to the center of the cam wheel.

On cam gear there's a punch mark, line that mark at 9 oclock there's a timing mark on cylinder head, crank gear, in back of crank gear is a plate with a (v) cut line gear at 11 oclock there's a timing mark on front case, gear to right of crank gear has a (v) cut on it, line it at about 11 oclock at timing mark on front case, adj tensioner and your done.Good Luck.

It is recommended that the timing belt be replaced periodically to assure correct engine performance. Because of their composition, timing belts wear over a period of time and mileage. To avoid vehicle break down and possible engine damage, the manufacturer recommends timing belt replacement at 60,000 miles.
REMOVAL & INSTALLATION1.8L Engine
See Figures 1, 2 and 3

1. If possible, position the engine so the No. 1 piston is at TDC.
2. Disconnect the negative battery cable.
3. Remove the timing belt covers.
4. Remove the timing (outer) belt tensioner and remove the outer timing belt.
5. Remove the outer crankshaft sprocket and flange.
6. Remove the silent shaft (inner) belt tensioner and remove the belt.

Fig. 1: Silent shaft belt timing marks-1.8L engine



Fig. 2: Checking the silent shafts for proper positioning



Fig. 3: Timing belt timing mark alignment-1.8L engine

To install:

1. Align the timing marks of the silent shaft sprockets and the crankshaft sprocket with the timing marks on the front case. Wrap the timing belt around the sprockets so there is no slack in the upper span of the belt and the timing marks are still aligned.
2. Install the tensioner pulley and move the pulley by hand so the long side of the belt deflects about 1 / 4 in.
3. Hold the pulley tightly so the pulley cannot rotate when the bolt is tigthened. Tighten the bolt to 15 ft. lbs. (20 Nm) and recheck the deflection amount.
4. Install the timing belt tensioner fully toward the water pump and tighten the bolts. Place the upper end of the spring against the water pump body.
5. Align the timing marks of the camshaft, crankshaft and oil pump sprockets with their corresponding marks on the front case or rear cover.

There is a possibility to align all timing marks and have the oil pump sprocket and silent shaft out of time, causing an engine vibration during operation. If the following step is not followed exactly, there is a 50 percent chance that the silent shaft alignment will be 180 degrees off.

1. Before installing the timing belt, ensure that the left side (rear) silent shaft (oil pump sprocket) is in the correct position as follows:
   1. Remove the plug from the rear side of the block and insert a tool with shaft diameter of 0.31 in. (8mm) into the hole.
   2. With the timing marks still aligned, the shaft of the tool must be able to go in at least 2 1/2 in. If the tool can only go in about 1 in., the shaft is not in the correct orientation and will cause a vibration during engine operation. Remove the tool from the hole and turn the oil pump sprocket 1 complete revolution. Realign the timing marks and insert the tool. The shaft of the tool must go in at least 2 1/3 in.
   3. Recheck and realign the timing mark.
   4. Leave the tool in place to hold the silent shaft while continuing.
2. Install the belt to the crankshaft sprocket, oil pump sprocket, then camshaft sprocket, in that order. While doing so, make sure there is no slack between the sprocket except where the tensioner is installed.
3. Recheck the timing marks' alignment. If all are aligned, loosen the tensioner mounting bolt and allow the tensioner to apply tension to the belt.
4. Remove the tool that is holding the silent shaft and rotate the crankshaft a distance equal to 2 teeth on the camshaft sprocket. This will allow the tensioner to automatically apply the proper tension on the belt. Do not manually overtigthen the belt or it will howl.
5. Tigthen the lower mounting bolt first, then the upper spacer bolt.
6. To verify correct belt tension, check that the deflection at the longest span of the belt is about 1 / 2 in.
7. Install the timing belt covers and all related items.
8. Connect the negative battery cable.

2.0L Engine
1990-94 VEHICLES
See Figures 4, 5, 6 and 7

1. Disconnect the negative battery cable.
2. Remove the timing belt upper and lower covers.
3. Rotate the crankshaft clockwise and align the timing marks so No. 1 piston will be at TDC of the compression stroke. At this time the timing marks on the camshaft sprocket and the upper surface of the cylinder head should coincide, and the dowel pin of the camshaft sprocket should be at the upper side.

Always rotate the crankshaft in a clockwise direction. Make a mark on the back of the timing belt indicating the direction of rotation so it may be reassembled in the same direction if it is to be reused.

1. Remove the auto tensioner and remove the outermost timing belt.

Fig. 4: Exploded view of the timing belt and sprockets-1990-94 2.0L engines

1. Remove the timing belt tensioner pulley, tensioner arm, idler pulley, oil pump sprocket, special washer, flange and spacer.
2. Remove the silent shaft (inner) belt tensioner and remove the belt.
3. Remove the crankshaft retaining bolts, then remove the pulley.
4. Remove the crankshaft sprocket retainer bolt and washer from the sprocket, if used, and remove the sprocket. If the sprocket is hard to removed, the proper puller may be used. If no bolts are used on the sprocket. Use the correct puller to remove.
5. Hold the camshaft stationary using the hexagon cast between journals No. 2 and 3 and remove the retainer bolt. Remove the sprocket from the camshaft.

To install:

1. Install the sprockets to their appropriate shafts. Install the retainer bolts and tighten the camshaft sprocket bolt to 65 ft. lbs. (90 Nm).
2. Check both tensioner and idler pulley for bearing wear, and replace if needed.
3. Align the timing marks on the crankshaft sprocket and the silent shaft sprocket. Fit the inner timing belt over the crankshaft and silent shaft sprocket. Ensure that there is no slack in the belt.

Fig. 5: Align the camshaft sprocket so marks face each other and are in alignment with the top surface of the cylinder head-1990-94 2.0L engine



Fig. 6: Align the crankshaft timing mark and the oil pump sprocket timing mark-1990-94 2.0L engine



Fig. 7: Timing marks in alignment-1990-94 2.0L engine

1. While holding the inner timing belt tensioner with your fingers, adjust the timing belt tension by applying a force towards the center of the belt, until the tension side of the belt is taut. Tighten the tensioner bolt.

When tightening the bolt of the tensioner, ensure that the tensioner pulley shaft does not rotate with the bolt. Allowing it to rotate with the bolt can cause excessive tension on the belt.

1. Check belt for proper tension by depressing the belt on its' long side with your finger and noting the belt deflection. The desired reading is 0.20-0.28 in. (5-7mm). If tension is not correct, readjust and check belt deflection.
2. Install the flange, crankshaft and washer to the crankshaft. The flange on the crankshaft sprocket must be installed towards the inner timing belt sprocket. Tighten bolt to 80-94 ft. lbs. (110-130 Nm).
3. To install the oil pump sprocket, insert a Phillips screwdriver with a shaft 0.31 in. (8mm) in diameter into the plug hole in the left side of the cylinder block to hold the left silent shaft. Tighten the nut to 36-43 ft. lbs. (50-60 Nm).

continue...

jack up on stands, remove LF wheel and water shield. disconnect battery, buy a crankshaft pulley holding tool from OTC, swing p.s. reservoir out of the way, remove both accesory belts, front motor mount, valve cover, dipstick and tube, crank pulley, timing belt cover, set engine at TDC #1 (align marks), remove nut on tensioner shaft to loosen both belts, remove the belts and tensioners (replace all), replace water pump NOW, install timing pulley, reinstall spring (use dipstick tube bolt to hold back the timing pulley with the slot in the bracket on the pulley until the belt is installed), install balance shaft belt, pulley and spring, once tensioned rotate engine once and retension by loosening the nut and retightening. Make sure the marks are still lined up, and reinstall everything. New valve cover gasket set with silicone in the corners. fill with coolant and bleed system once finished. it is a good idea to also change all the oil seals while you are in there.