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Ok on cams and on big engine crank they all have either dots or arrows alls u do is line up the small ones on cams ok but if u moved big crank then u must set crank back to dead top center and u do this but pulling out the number one spark plug and putting a screw drive in whole and tap lifter then game some one turn crack until u fill the lifter at the highest point then that's top dead centrr
you replaced the lifters? why? the engine is out of time, the cam position determines if its on compression stroke or not. you may have bent valves, if not you are lucky. the cams have pins to hold them in time and then the chain is installed with crank on #1 tdc (keyway up). if all is lined up correctly and it doesnt have compression, you have bent the valves. Water pump replacement is not a job for a DIY.
the timing chain on the 4.3 is on the front of the engine. you will need to remove the water pump and the crank pulley to access the timing chain cover. You can see the cover if you look behind and above the crank pulley. the cover will be held on by about 15-20 bolts.
make sure you line up the timing mark on the cam gear with the timing mark on the crank gear. there will be a dot on each. when the are lined up the dot on the crank pulley will be at 12 oclock and the dot on the cam gear will be at six oclock.
you will need a puller to remove the crank pulley and the crank gear. Other than that its just nuts and bolts.
This is like a big job.....You would do better to get a repair manual for less than $20/copy.
Disconnect your battery.
Line-up the crank-pulley up; camsaft up.
Drain the coolant, remove water-pump, crank pulley, alternator, compressor-to give more room.
Remove the timing-chain cover.
Loosen the tensioner
Remove the cam-sprocket, and take off the old chain.
IRemove old gaskets.
Installation is reverse of removal. Crank-pulley and camshaft marks must be in proper positions, otherwise engine would damage.
**To avoid serious engine damage, let a shop 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 firstname.lastname@example.org
there will be two highlighted or dotted chain links for the camshaft and one for the crankshaft gear, position cam dot/TDC indicator in the 12-O clock position, the two dotted links should be on ether side of cam dot, turn crank dot to the 6-O clock position and line up highlighted link with dot on crank gear, if timing cover is on, then make sure cylinder 1 is at TDC when the two links are at 12-O clock.
Well I just looked up the specs for you for the 2.7 ltr. I hope this is what you want.
Cam Caps 105 in.lbs.
Cam Sprocket 250 in.lbs.
Crank Dampener 125 ft.lbs.
Cylinder Head Cover 105 in.lbs.
Here is an illustration of the timing chain set up. Be aware these marks are lined up with the three sets of plated links on the chain. You should easily identify them if you have a new chain. You may have to clean an old chain to see them.
Good luck with this and let me know how it goes for you.
well not sure exactly why it wont line up use something to turn the crank and cam to appropiate position start sliding crank gear until cam gear is touching then start to push both at same time make sure your crank key and cam pin are bothin place
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.