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Cam Gear Installation (w/o cams)

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Old Oct 1, 2004 | 09:14 AM
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UncleXSO's Avatar
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From: Metro Detroit
Cam Gear Installation (w/o cams)

Hi everyone,

New poster, long time fan.

I have been researching the forums here for a cam gear only install. It looks like everyone who has been posting about their installs has been putting cams in as well. I was wondering if there was any way to get around having to pull the valve cover in order to loosen the stock cam gear bolts? Would putting the car in gear be sufficient to keep the engine from rolling (i.e. enough resistance to break cam gear bolts loose)?

Thanks in advance for any advise.
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Old Oct 1, 2004 | 06:54 PM
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how to section has something on this.i think there installed AEM cam gears
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Old Oct 1, 2004 | 07:33 PM
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From: Ozark, MO
Originally Posted by UncleXSO
Hi everyone,

New poster, long time fan.

I have been researching the forums here for a cam gear only install. It looks like everyone who has been posting about their installs has been putting cams in as well. I was wondering if there was any way to get around having to pull the valve cover in order to loosen the stock cam gear bolts? Would putting the car in gear be sufficient to keep the engine from rolling (i.e. enough resistance to break cam gear bolts loose)?

Thanks in advance for any advise.
You have to pull the valve cover so you can hold the cam with a wrench (1in) when you break loose the cam sproket bolt. Trust me it is on with 65+ ft pnds so it will take some force (Long Drive or Impact gun). The valve cover isn't hard to take off, look up www.evomoto.com in the installs and it gives some pretty good instructions. A good tip though is when changing your gears to make sure you get them on the correct tooth draw a mark on the belt where the tdc line is so you can match it up with the new gear. This will enshure that it is on the correct tooth when turning the crank back around after tightening up the belt again. Good luck
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Old Oct 19, 2004 | 12:25 AM
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is it worth putting cams on without shafts?
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Old Oct 19, 2004 | 01:01 AM
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not really
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Old Oct 19, 2004 | 01:09 AM
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From: Tempe, AZ
hehe that awnsers my question hehe
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Old Oct 19, 2004 | 07:26 AM
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what cam gears do you plan on putting on? I find the easiest way is the most time consuming way. Pull the passenger front wheel off and the inner splash guard off. From there take your upper timing belt cover off. With a 1/2drive and extension of 6" get your motor set at TDC. The tick marks on the cam gears should point straight up at the hash marks on the valve cover. Now remove your valve cover. Use a 19mm(??) to loosen to hold the cam in place and a 17 socket to break the cam gears loose. You are done up top for now. Now comes the fun part. Remove your water pump pulley, harmonic balancer pulley, serpentine belt tensioner and the power steering pump pulley. All this of course after you pull the serpentine belt off. Now you have access to your lower timing cover. Undo ALL the bolts for the lower timing belt cover. I don't know how many there are, but make sure you are in a well lite area. There are plenty of bolts hiding around there to hold it on. Now go back up and undo the motor mount on the passenger side of the car and remove it. Make sure you have a jack with a 2 by 4 on it and under the oil pan before you remove the motor mounth. Next go back down and pull the timing cover off. I found it easier to bring it down from the bottom. You are now lookign at your timing belt. On the left side of the belt you will see your tensioner. Take a 12mm with 3'' extension and remove it. Once removed get find a grenade pin or small nail. Place the tensioner in a vice and collaps the tensioner, stick the pin through the hole. You now have your tensioner set to go back on. Slide the timing belt off the cam gears and now install your new ones. Make sure you torque down your cam gears. Now you have to get the timing belt back on and timing set. Make sure your cam gears go on 'nipples up.' Put your valve cover back on at this point. Make sure your cam gear's hash marks are up and pointed at the hash marks on the valve cover. Now go back down the set your 'front' balance shaft/oil pump. It will be the bottom right pulley. There is a white tick mark on the pulley. That should be pointing left and up. There is a little triangle 'dowel' it should be pointing at, up and to the left of the pulley about 1'' away. The crank pulley will have have a hash mark on it, set that off to the right pointing at the same triangle the oil pump hash marks points at. Slide your timing belt on and put your tensioner back on. Make sure yoru marks on lined up, cam gears, oil pump, crank pulley. If all is good pull the pin out of the tensioner, your timing is set. At this point it is a a good idea to take a 1/2 ratchet and make two complete rotations with the motor. You do this to make sure your valves are not slapping the pistons. My feeling on this is, you can do it this was and hear the valves tap and maybe get away with it, at the most bend a valve. If you just go and start the car when you are done, you risk destroying your head, and thus your motor. Once you have the timign set, you are not tapping valve go ahead and slide the lower timing cover back on. Put all the screws back in and get your pulleys back on. Did you remember the way the serpentine belt goes? The belt will come off the harmonic balancer and back UP and over free wheelign pulley back DOWN to the ac pump then up to the power steering pump, down under the water pump and up and over the alternator to around the tensioner then back down and under the harmonic balancer. This part is easier with two people. Put your inner splash guard back on, then your tire. If you want to 'tune' with your cam gears, leave the upper timng belt cover off. FYI, your upper timing belt cover will not fit back over the adjustable cam gears. The adjustment part of the cam gears sticks out too far and touches the cover. If you wish to remain 'secret' take a dremel and dremel the 'pattern' out from the inside of the timing belt cover and it will fit back over the cam gears.
Hope this helps.
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Old Jul 15, 2010 | 12:28 PM
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From: Orange County
hey guys! sorry, i know his is an old hread, but i cant find anyone who did a single cam gear install on the evo 9 MR.

i just got my hks cam gear yesterday, and i was wondering how to just installing it..
and i replace it with the intake cam gear, not the exhaust camgear right? because i know evo 9's differ from evo 8's. like the exhaust cam gear is like covered ...idk
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Old Jul 15, 2010 | 02:46 PM
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From: deer park
wow i just got done reading that long long thread nice reading though
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Old Jul 15, 2010 | 10:53 PM
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I set the motor to tdc, zip tied the belt to both cam gears, released some tension using a tensioner tool (not all tension, just enough to get the gears off the cam). Marked the belt at the timing mark on the stock gear. Pulled off the exhaust gear, cut the zipties on the exh gear. Lined up the new gear to the mark on the belt and ziptied it. Put the gears back on the cams and released tension. Rotate the motor several times to make sure the timing marks still line up.
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Old Jul 16, 2010 | 10:54 AM
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From: Orange County
Originally Posted by biggie5252
I set the motor to tdc, zip tied the belt to both cam gears, released some tension using a tensioner tool (not all tension, just enough to get the gears off the cam). Marked the belt at the timing mark on the stock gear. Pulled off the exhaust gear, cut the zipties on the exh gear. Lined up the new gear to the mark on the belt and ziptied it. Put the gears back on the cams and released tension. Rotate the motor several times to make sure the timing marks still line up.

thanks!!!
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