Engine Mechanical problem
2005 Kia Optima 4 cyl Front Wheel Drive Automatic 80000 miles
My timing belt broke and I think it slipped out of time, because when I replaced the timing belt and lined up all the timing marks and started the car it ran for a little bit and then cut off(no vibration or rough idle) and now I cant get it to start. I not sure if the timing is still off or if my oil pump is off time or if it is something else all together.
Did you replace any valves in the repair? Was the belt tight. You need to check all timing marks again? What is the engine size of the vehicle?
February, 26, 2009 AT 10:19 AM
I did not replace any valves. The belt was tight. The engine size is a 2.4l dohc.I Know I had the timing marks lined up on the bottom of the engine, but not sure on the cams. Any diagrams would help out a lot. Thanks
February, 26, 2009 AT 2:28 PM
Just a little bit of friendly advice ...If the belt broke while the engine was running I would suspect valve damage .. or if the marks were not lined up correctly the first time I would suspect the same !! hope not .. let me know
February, 26, 2009 AT 4:18 PM
Thank you for the timing diagram. The timing belt didnt brake all together, a lot of the teeth on the belt broke off and that is why I think it came out of time. I brought it to the kia dealership and they told me that the belt needed to be replaced and the crank sensor need to be replaced. Thank you for your help. Any other tip would help.
February, 26, 2009 AT 7:43 PM
I will keep my fingers crossed for you ! But even a stripped belt can damage the valves.I hope i'm wrong for you. Let me know if you need any more information along the way. And the outcome. Thanks
all the diagrams listed are on my previous post in the correct order !
CAUTION: To prevent engine damage, DO NOT rotate crankshaft counterclockwise (as viewed from timing belt end of engine).
Disconnect negative battery cable. Remove drive belts and drive pulleys from crankshaft and water pump. Remove timing belt covers. To align timing marks, rotate engine clockwise so No. 1 cylinder is at TDC of compression stroke. Ensure camshaft sprocket timing marks align with upper surface of rocker cover. Dowel pin of camshaft sprocket should be pointing upward. See Fig. 1.
Remove timing belt auto tensioner. If reusing timing belt, place mark on timing belt to indicate direction of belt rotation. Remove timing belt. Remove camshaft sprockets.
Remove plug at left side of block, and insert a screwdriver to hold left counterbalance shaft in position. Screwdriver will have to be inserted at least 2.36" (60 mm). Remove oil pump sprocket nut and sprocket. See Fig. 2.
Loosen right counterbalance shaft sprocket mounting bolt. Remove tensioner " B" and timing belt " B". See Fig. 2. Remove crankshaft sprocket " B" from crankshaft.
Check belt teeth for cracks, damage and oil contamination. Inspect sprockets for damage. Check tensioner pulley and idler pulley for grease leakage and roughness in rotation. Check sprockets and pulleys for wear, cracks or damage. Replace components if necessary.
Measure protrusion of auto tensioner rod. Auto tensioner rod should extend.57" (14.5 mm) from end of housing. See Fig. 3. Replace auto tensioner rod if not within specification. Place tensioner in a soft-jawed vise, and test resistance of rod. If rod can be easily pushed in with light vise pressure, replace auto tensioner.
Install crankshaft sprocket " B" onto crankshaft. Ensure flange is properly positioned. Lightly oil outer surface of spacer, and then install spacer to right counterbalance shaft, with rounded edge of spacer inward.
Install right counterbalance shaft sprocket. Tighten flange bolt tightly by hand. Align timing marks on each sprocket and on front case. See Fig. 4.
When installing timing belt " B", ensure there is no slack in tension side. Install tensioner " B" in center of pulley on left side of mounting bolt, and in pulley flange toward front of engine. See Fig. 5. Align timing mark of right counterbalance shaft sprocket with timing mark on front case.
To tighten timing belt " B", lift tensioner " B" so tension side is pulled tight. Tighten bolt to secure tensioner " B". DO NOT turn shaft, or belt will be over-tightened.
Ensure timing marks are aligned. Ensure center of span on tension side of timing belt " B" can be depressed by hand. Ensure belt deflection is.20-.30" (5-7 mm).
Install crankshaft sprocket flange and sprocket. Ensure flange is mounted in proper direction, with chamfered side toward block. Install special washer and sprocket bolt to crankshaft. Tighten sprocket bolt to specification. See TORQUE SPECIFICATIONS.
Insert long screwdriver through plug hole in left side of cylinder block to hold counterbalance shaft in position. Install oil pump sprocket, and tighten nut to specification. See TORQUE SPECIFICATIONS. Install camshaft sprockets, and tighten bolts.
If auto tensioner rod is fully extended, place it in soft-jawed vise, and compress rod until hole in rod lines up with hole in auto tensioner housing. Insert stiff wire to hold rod in this position. Install auto tensioner, leaving wire in place.
CAUTION: If timing marks on camshaft sprockets do not line up properly, DO NOT rotate sprocket more than 2 teeth in either direction, or valve and piston will touch. If necessary, remove and reposition camshaft sprocket.
Install crankshaft sensor. Set timing marks of camshaft sprockets with notches on upper side of rocker cover and dowel pins straight up. Align crankshaft sprocket timing marks. Align oil pump sprocket timing marks.
Install timing belt in order around crankshaft sprocket, oil pump sprocket, idler pulley, exhaust camshaft sprocket, intake camshaft sprocket and tensioner pulley.
Gently raise tensioner pulley so belt will not sag, and then temporarily tighten center bolt. Ensure timing mark of each sprocket is still aligned. Remove wire from auto tensioner.
Rotate crankshaft 2 complete turns clockwise. Leave in this position for about 5 minutes. Measure auto tensioner protrusion " A" (distance between tensioner arm and auto tensioner body). Ensure auto tensioner protrusion is.22-.35" (6-9 mm). See Fig. 3. Install timing belt lower cover and upper cover.
Application. Ft. Lbs. (N.M)
Auto Tensioner Bolt.15-20 (20-27)
Block Plug Cap.15-20 (20-27)
Camshaft Sprocket Bolt.58-72 (80-100)
Crankshaft Pulley Bolt.15-22 (20-30)
Crankshaft Sprocket Bolt.80-94 (110-130)
Oil Pump Sprocket Nut.36-43 (50-60)
Timing Belt Cover Bolts
Lower & Upper Cover Bolt(1)
Left Rear Cover Bolt
Right Rear Cover Bolt(2)
Timing Belt Idler Pulley Bolt.33-40 (45-54)
Timing Belt Tensioner Pulley Bolt.31-40 (42-54)
Timing Belt Tensioner Pulley Bracket.17-20 (23-27)
Water Pump Mounting Bolt.11-15 (15-20)
. INCH Lbs. (N.M)
Rocker Cover Bolt.71-89 (8-10)
Valve Cover Bolts.71-89 (8-10)
Water Pump Pulley Bolt.71-89 (8-10)
(1)Tighten bolts to 71-89 INCH lbs. (8-10 N.M).
(2)Tighten bolts to 89-108 INCH lbs. (10-12 N.M).
March, 1, 2009 AT 4:35 PM
Ok, I changed the timing belt, lined up all timing marks, followed all directions that I know of, but the car still will not turn over. If you have any other ideas please let me know. Thanks
March, 1, 2009 AT 6:34 PM
When you say it will not turn over? Do you mean it is not firing up? Or it is doing nothing. Not even cranking?
March, 1, 2009 AT 10:36 PM
Its cranking, but it wont turn over.I can smell gas but I dont know if it is getting any spark?
March, 2, 2009 AT 10:52 AM
Take out # 1 spark plug. Plug it back into its wire and hold the wire with a pair of pliars and have someone crank over the car while you put the bottom of the plug WITH PLIARS or you will get a shock, near a good ground point it should spark over the gap. Let me know