alright guys, you've been hitting big j up for a how-to on this for the past week, well, as we all know, he's a busy guy, and we can't expect him to do all the work for us, can we?  hell no, so i did it so he wouldn't have to.

the known tools needed:
14mm wrench
adjustable wrench
17mm wrench
19mm wrench
small allen key, very small.
various screwdrivers, small flatheads
10mm wrench
10mm normal socket 1/4 drive
small extension
10mm deep socket, not a must, but sure helpful
rtv gasket maker (silicon hi-temp)
pliers
small razor blade



there's probably more, and some may not be needed, i just put what i remember using, i think. lol


alright, here we go...

for starters, make sure you know what the intake cam is when you get them in the mail or out of whatever

be sure to notice the signal plate on the end



preliminaries:
1. put car in neutral, pull up e-brake
2. disconnect negative battery cable
3. remove the engine cover (3 bolts 10mm)
4. crawl under the car, and remove the 3 rivets or bolts that are holding on the small piece of plastic that protects your belt, circled in red in the following pic:


5. now, take your 14mm wrench and have a buddy under the hood, place your wrench on the bolt on your belt tensioner pulley (second one up) and pull downward on it, while he pulls the belt away.

step 1:
remove the 4 bolts circled in red, these hold the ignition coils in place, pull the coils out, and know which one goes on which spark plug.  Then remove the ten bolts circled in green, these hold the valve cover on, make sure you don't lose any of the
bolts. remove the vacuum hose circled also.




http://i86.photobucket.com/albums/k100/ … emoval.jpg
step 2:
proceed to pull the valve cover off of the head, the gasket should come with it.  notice the 4 bearing caps, they're circled, 8 bolts total, don't remove them yet, just make sure you know what they are.




step 3:

remove the plug connected to the brass looking cylinder, and the two ground wires, it's all circled


step 4:

remove the bolts holding on the timing cover, here's the pic from the fsm.  use something very thin to pry the cover away from the motor, do this slowly, because there are pins holding it in, and you can't just pull it out in one direction, my advice is
to pry it a bit, take your razor and scrape inside, pry more, continue, it's easy once you figure out you're not breaking stuff, lol.



step 5:

now that you can see the cam gears and timing chain, use a wrench and turn the crank pulley until your cam gear's timing marks and your timing marks on the chain line up (these are yellow links, can't miss em) one this has occured, all valves on the 1st
cyl should be down and the cam lobes should be pointed in the direction pictured.  removing the spark plugs will make turning the motor over MUCH easier



now, break loose the bolt on the exhaust cam gear, use your adjustable to hold the cam, circled in red, DO NOT use the chain to break this loose.  and do no remove the bolt completely yet.



step 6:
use a small screwdriver to push back the tensioner and then insert your small allen wrench into the tiny hole on the tensioner, to hold the tensioner piston in place, there should be a notch on it that you can use to hold it.

it's in the bottom left



step 7:

once the tensioner is secure, go ahead and remove the gear and pull the chain away from that single gear.



step 8:

go ahead and remove all of the bearing caps, slowly, as in, break them all loose, then remove them.  next there are 3 10mm bolts on the top of the timing cover assembly, remove those.  then there are a few more inside the actuall assembly that hold the

top of the assembly on, once all of those are removed you should be able to pry the top of the assembly off



circled in red are the 3 bolts that hold the top on, like i said there are more on the inside of the assembly, i just don't have a pic.



step 9:

once all of this is done you should be able to pull the camshaft out of the head, take note of where the lobes are located.  install your new intake cam in the exhaust's place and place the lobes according to how raised the valves are, it should be right

in line with the old location.



step 10:

pour oil over the cam bearings, where the caps go, and reinstall the caps, slowly, do not tighten any of the hard until after they are all snug, then tighten then, but not too much, you can over tighten these.



step 11:

scrape the old grey rtv silicon off of the timing covers, and reapply new silicon, place the top assembly cover back over top of the camshaft and insert all of the bolts.  Place the sprocket back in it's place, and move the cam, slowly until it lines up

with the dowel pins on the end of it line up with the slot in the sprocket.  Once this is done, find out where the stock timing mark is on the sprocket (nissan usually cuts a little notch out, or a scratch of some sort) but instead of lining this up, move

the sprocket clockwise 6 teeth and place the yellow link 6 teeth away from the stock location.  once this is accomplished tighten the cam sprocket bolt. and remove your allen key from the tensioner



step 12:

install the timing cover (after silicon is applied), plug, and the ground wires.  put your spark plugs back in if you removed them, and reinstall the valve cover, vacuum hose, and the ignition coils.  climb under the car, and loosen the belt tensioner and

reinstall the belt.  put the lower plastic cover back on and reconnect the battery.



give the silicon a while to setup, then it should be safe to start the car back up


someone please let me know if i missed anything or said it wrong, i'm trying to work off of pure memory here, and in a hurry, so someone feel free to give any change suggestions.

Last edited by jarrett2k (2008-08-17 13:41:41)