I installed a new head. i see where u need to line up marks on gears with ones on timing cover. How come some people tell u to line the marks towards each other. also i had to pull exhaust cam to torque the head down but when putting gear back on, and attaching the gear there are 2 key ways on back of gear about 90 degrees apart which slot do i use.

The timing belt diagrams are listed in detail with figures and procedure to remove them.

REPLACING TIMING BELT ON A 2003 HYUNDAI TIBURON 2.7L V6

1. Remove passenger side headlight via the 3 10mm screws holding it in place and disconnect the turn signal and main harness

2. Remove passenger side tire

3. Remove the splash guard via 2 10mm screws at the top of the guard

4. Remove the 2 17mm bolts and 2 17mm nuts from motor mount bar

5. You may have to separate the mount bar from the motor via either a chisel or flathead screwdriver and a hammer ( support engine via a jack and a piece of plywood under oil pan )

6. Use a 3/8 ratchet ( or a long breaker bar would work better ) to remove the serpentine belt ( remember the route ). Disconnect the power steering hose from the pump and secure back with a zip tie. Remove the power steering pulley with a pry bar and 19mm socket.


7. Hand turn the crankshaft via a 22mm socket to TDC ( top dead center, marked on lower timing belt cover )

8. Remove the serpentine belt tensioner via 2 12mm bolts on each side

9. Remove the upper timing belt cover via 7 10mm screws

10. Remove crankshaft pulley ( 22mm ) with an air impact gun ( an electric one will work too )

11. Remove lower timing belt cover via 4 more 10mm screws





12. Remove the motor mount from the block via 3 14mm bolts and 2 12mm bolts ( there is a 12mm holding the oil dipstick bracket towards the front of the car )

13. Remove the auto tensioner via 2 12mm bolts



14. Remove the timing belt


15. Make sure your timing markings are correct...

There is one marking on each cam gear and on the heads ( head markings are small, look closely...try wiping the edge of the head down with a rag and some brake cleaner to bring it out more ) They are also pictured in last pic.

When the crankshaft is in the TDC position, the cam gear markings should both line up at the same time with the head markings

Adjust if necessary, use a 17mm socket to turn cam gears to correct position

16. Install new timing belt ( as you install it, make sure to keep a little tension on the belt as you route it )

17. Install new auto tensioner and pull pin

18. Install just the lower timing belt cover

19. Install the crankshaft pulley

20. Hand turn the crankshaft atleast 5 times to verify the timing markings are lining up properly ( all should line up at the same time when the crankshaft pulley mark is in the TDC position )

21. Remove crankshaft pulley

22. Remove lower timing belt cover

23. Reverse steps 12 - 1

You can refer the videos below for further assistance.Your valuable feedback would be appreciated.Thanks for choosing Fixya.

I have a shop manual if you would like it. [email protected]

to remove head gasket first take off the valve cover and locate head bolts .make sure one is not broken . then remove timming belt cover and set engine to top dead center by the mark on the crank pulleyengine drive belt will also need to be removed.loosen timming belt tension ,mark belt osision and slide belt from camshaft gear .sometimes its easier to remove the gear.disconect fuel lines ,exuat pipe from manifold ,and sensor wires ,sparkplug wires and any other vacum lines wires ,ect ....that are conected the the cylinder head. before removel disconnect battery and drain cooling system. remove the head bolts ,inside and work to the outside in a circle.may need to pry head from the engine block careful .reinspect to make sure all hoses and wire ,lines are not still attached..always seems to be one thing that will still be attached..after head is removed ,you should be able to see where the gasket is damaged. clean all mating surfaces off engine block and head toinspect for cracks and damage.make it extra clean....razor blade scraper, sand paper ,brakecleaner and lots of shop towels. that is the most important to have clean surface ...install new gasket and reinstall head bolts to the proper tourque specs. parts guy can tell you if you dont know. when the head bolts are tight, this is a good time to drain oil and filter and after repair is finished install new 50/50 coolant. good luck with your repair

Theres a knock pin in the upper timing gear and it needs to be at the top and with it at the top theirs and mark on the edge of the gear that lines up with the mating point of the valve cover and the top of the cyclinder head. the lower gear has a dimple on the block at about2 O'Clock and theirs a cut out dimple thats on the back edge of the lower gear that can be turned to line up withthe dimple in the block, the zero mark on the ting cove will also line up in this position with the cover on and the lower pully installed. Manuel trans models also have a mark on the frywheel gear on the clutch cover under a rubber plug in the top of the transmission bell housing that will line up too only have to see the one lined up good, with the new belt on turn the motor over by hand till you see the marks line up again as it's easy to put the belt on one thooth off. make sure to tighten the tensioner bolt as it's easy to forget and the belt will come off soon and with bad results.

their is timing marks where they suppose to line up stamped into the engine block cam gears and on the head. twin cams u points marks on cam gears straight toward mark on other cam gear

During most engine rebuilds, a completely new timing assembly should be installed. If wear exists on any component, replacement of the entire assembly is necessary. Wear in the chain, gears, or sprockets means a timing lag, which results in poor engine performance.
The timing chain or belt is generally installed with the gears in their correct positions. Before installing a new chain, soak it in oil.
OHC (Overhead Cam) Engines
Some OHC engines use a chain drive; others use a belt drive. Removing the cover on some OHC engines that have timing chains is more difficult, because the cover often fits between the oil pan and the cylinder head. There are special procedures for replacing cam timing components in these engines.
Before a chain repair job, perform a leakage test on non-freewheeling engines to check for bent valves, so that an accurate repair estimate can be made.
OHV (Overhead Valve) Pushrod Engines
On many OHV pushrod engines, the crankshaft sprocket is installed on the crankshaft nose and the crankshaft is rotated to position piston #1 at TDC. At this point, a mark stamped onto the crankshaft sprocket is pointing directly upward (toward the camshaft).
The camshaft sprocket is then temporarily bolted to the cam and used to rotate the cam until a mark stamped on the cam sprocket is pointing directly downward (toward the crankshaft). The sprocket is then removed from the cam (without allowing the cam to rotate).
The timing chain is looped over the cam gear, the mark on the cam gear is positioned directly downward, and the chain is looped around the crankshaft sprocket. When the cam sprocket is attached to the cam, the timing marks on the crank and cam sprockets should be pointing toward one another. NOTE THIS IS FOR 2WD 4.0

Install the cam sprocket, timing chain, and timing chain cover. Make sure the dot on the crankshaft gear is pointing towards the center of the Camshaft gear bolt. Make sure the hole in the Camshaft gear is pointing towards the center of the crankshaft. Be sure to remove the nail holding the chain tensoner back, before installing the timing cover The round hole in the cam gear is the alignment mark

roll the crankshaft pulley around until u get the mark to line up with 0 or TDC. once u get the cover off mark the cam sproket to the head with whiteout and mark the crank gear to the block also. (in case they move on you. loosen tensioner and pry to one side.tighten tensioner bolt and remove the belt. install new belt and get the slack to move toward the tensioner side. (u may have to move the cam slightly to allow all the slack to go toward the tensioner. then move it back to the mark, making sure the crank didnt move. loosen tensioner bolt and let it spring toward the belt and apply pressure with yr hand a little more snug while u tightn bolt. then rotate the crankshaft 2 revolutions by hand and your marks should line back up. if the marks are more than 1/2 tooth off u must re do it!

I don't have a diagram but here are written instructions.

I don't know how much you know about the subject so I will start at the beginning. First you have to get to it, you can pull the motor or leave it in the vehicle. Its a little harder with it in depending on the space you have in engine compartment. If your leaving the motor in, which I imagine you are, your going to have to take the front end of the vehicle apart. Remove the grill, bumper if need be, radiator, fan, water pump, harmonic balancer, you will need to buy a puller and a installer for the harmonic balancer. You can get a puller kit from harbor frieght tools for $10. You can buy the installer from Summit racing (web site) for around $30 or you can buy one that will do both the install and removal from summit for $70. Once you have removed your harmonic balancer you can remove your timing cover to expose your timing chain. Turn the motor using a socket wrench until the timing marks on the crank gear and cam gear line up. The marks are usually just white dots, you want the crank mark to be up towards the cam and the cam mark towards the crank, the marks will be up and down from each other. Once you have the marks lined up remove the bolts holding the timing chain to the cam and crank. Remove the timing chain as a whole unit with the cam and crank gear still on it. If the crank gear doesn't want to come loose use your puller on it. when you get it off just put your new gear on and line up the timing marks then put it back on as one unit. If you cant get the crank gear on all the way by hand buy a crank install tool (summit) they run about $24. While you have the thing apart it would be a good Idea to put a new timing chain on. Depending on your vehicle this would also be a good time to change your cam if need be. Its not that hard to do it just takes a while, take your time and don't force anything. If you need anymore help my email is [email protected]

I'll assume you are going to replace the entire set (sprockets, guides, etc.) which I got from O'Reilly for $79.

First, set engine to #1 TDC.
Remove valve cover, fan shroud, fan, drive belt, water pump, 4 10mm bolts from bottom front of head, and 3 10mm bolts from front of oil pan. Remove lower front shield to remove oil pump. remove oil pump/distributor drive shaft, noting the orientation of the drive shaft.
Remove harmonic balance using correct puller (can be rented from local auto parts store). Remove P/S pump and A/C compressor if necessary. Remove timing cover.

IMPORTANT: Before removing oil thrower and distributor drive gear, note direction of oil thrower.
Remove oil thrower and distributor drive gear.
Remove chain guides, tensioner, chain, and finally both sprockets.
The new crank sprocket can only be installed one way, by aligning groove with keyway. The new cam sprocket will have 3 guide holes on the mounting flange, and you will need to align the knock pin with hole #2. Both sprockets should have a small dot (timing mark) on the right side of the sprocket when viewed from the front.
To install new chain, inspect chain to find the two brightly colored gold links. These two links must align with the timing marks on the sprockets. Assemble and install chain tensioner.

!!! IMPORTANT: Be sure to use new gasket when installing tensioner. Tensioner is oil pressure fed and a leaking gasket could allow chain slack, leading to premature wear or break.
Install chain guides, being sure not to let tensioner pop out.

!!! IMPORTANT: The tensioner must be fully compressed. To accomplish this, loosen the 8mm bolts in the passenger side guide (the shorter one). Compress the tensioner, adjust guide to remove slack, and tighten the two 8mm bolts.
Double check that everything is still lined up properly, and make corrections as necessary.
Install distributor drive gear and oil thrower.

!!! IMPORTANT: Ensure oil thrower is installed facing away from the distributor gear. If not, it could get caught in the distributor gear and destroy the two gears or cause engine lockup.

Before installing timing cover, inspect coolant and oil passages. If there is excessive buildup, a good system cleaner is recommended. Replace timing cover gaskets to prevent oil leakage. The best way to reinstall the timing cover is to remove the oil pan, install the timing cover, and reinstall the oil pan (replacing the pan gasket). If you don't want to do that, simply grease the top and bottom of the timing cover and lightly tap it into place with a rubber mallet. This is to prevent damage to the oil pan and head gaskets.
To install the distributor drive shaft, dab some grease on the top side of the gear to hold it in place, and line it up with the distributor. If you are having trouble lining up the shaft, pull it out and look at it from the top, and you will see that the flange is offset. At #1 TDC, the offset will be towards the front.
Install oil pump, being sure to use new gasket.

!!! IMPORTANT: Failure to replace oil pump gasket could lead to inadequate oil pressure, which will cause severe engine damage.

The remainder of the installation is a reverse of removal, using new gaskets where necessary. Before installing your valve cover is a good time to check your rocker arm clearances. This is also a good time to replace your drivebelt, and any other maintenance items as necessary.