timing belt remove/install b18c
Joined: Feb 2002
Posts: 764
Likes: 0
From: holmdel, nj, usa
Re: timing belt remove/install b18c (dabomb)
its farely easy 1. pull off valve cover 2. pull off driver engine mount 3. pull off all the 10 or 12 mm nuts in timing belt cover 4. crack both cam gear bolts loose not off 5. loosen tensioner pull off belt 6. take gears off replace set everything to tdc put belt of tension and work in reverse but check elsewhere before following my cliff notes its been a while since i did my timing
Joined: Feb 2002
Posts: 764
Likes: 0
From: holmdel, nj, usa
Re: timing belt remove/install b18c (dabomb)
heres cspeed
On the later model Hondas and Acuras the timing belt needs to be changed every 90,000miles. Sooner if the car see's a lot of abuse. Changing the timing belt is sort of like changing the oil. You do not want to wait until it breaks to change it, as catastrophic damage may occur. Its more of a preventative maintenence to have it changed before it breaks. Generally, there are no signs of it wearing or breaking prior to it happening, it is a immediate and is sudden with no warning whatsoever. So keep track of your milage and have it changed when the service limit as been reached.
Typical replacement should take about 1.5hours with the proper tools.
You clearly see in this picture that the timing belt has been severly damaged and has literally seperated into two halves. The car still ran fine, but luckily we caught it before it snapped. Normally, there is an upper timing belt cover that completely encloses the timing belt and cam gears, however this motor was equipped with adjustable cam gears and the owner had removed the upper cover to ease the adjusting of the gears. Otherwise, you will have to remove the valve cover in order to remove the upper timing belt cover to access the cam gears and perform the timing belt change. To see how to remove the valve cover, click here.
The next thing to do is the remove the driverside wheel so you can access the crank. Use and impact gun to remove the crank bolt, otherwise you will have to use a really long extention and a long pole to get enough leverage to break the bolt loose by hand. Have someone sit in the car and step on the brakes while the car is in gear while you do it so the car doesn't rock or move.
In order to remove the lower timing belt cover, you will have to remove the upper driverside engine mount. Also, before going any further, put the crank bolt back on and rotate the crank until the timing mark on the cams gears line up. On the OEM cam gears, the 'UP' arrows should point up and the timing marks on the teeth should line up the same as shown in the picture.
Once that is complete, you can now release the tention on the alternator by loosening the upper bolt. If your car is equipped with AC then now is a good time to loosen the tensioner for the AC belt as well.
To allow the alternator to swivel and release the tention on the belt, the lower alternator bolt also has to be loosened. You should now be able to slide the alternator in its bracket and release the tention on the alternator belt and remove it from the crank. When you remove the crank pulley, be sure not to lose the key! Place it in a safe location.
Now you can remove the 10mm bolts that hold the lower timing belt cover on. There are two on the underside and three from the top.
Once the bolts are removed, you can slide the cover off and out from the bottom of the vehicle. Notice the timing belt powder at the bottom of the cover.
You can see in this picture where all the 10mm bolts are located that hold the lower timing belt cover in place. You can also see how the timing belt is run through the cam gears, water pump and tensioner.
Be sure to take note of how the timing belt is run. The tensioner pulley must be loosened now as the final step before you can pull off the old belt. Using a 14mm box wrench, loosen the bolt in the center of the tensioner pulley.
Once the tensioner is loose, you can go ahead and remove the old timing belt. Take care not to move the cam gears too much during this process. You can see that the timing belt was severely damaged. The owner takes blame for dropping a tool down into the timing belt cover while working on the car. Ouch!
Before placing the new belt on, make sure you have the crank lined up. You can see there is a mark on the lower gear that needs to be aligned with a mark on the block. Turn the crank using the crank bolt if necessary to line them up. Then open up the new timing belt.
Once the lower gear is lined up, double check that the cam gears are also lined up correctly. Starting at the crank, place the new timing belt on and work your way around the tensioner and water pump and finally place the new belt over the cam gears. Some patience may be required during this step.
Once the new belt is in place, you will need to retension the tensioner pulley. To do so, place the crank bolt back on the crank and turn the crank counterclockwise three teeth and then tighten the tensioner pulley. The timing belt should have about a 1 inch deflection if you press on it in the center along the front of the loop (long side).
Once again, the owner accepts the blame for dropping more debris down the timing belt cover. Please be careful when working around the timing belt especially if you have the upper cover removed or have holes in it. If the timing belt breaks, you can easily destroy the head, valves and or pistons. Even worse, you could damage the cylinders.
Now you can replace the lower timing belt cover being careful not to overtighten the 10mm bolts.
Once the cover is in place, put the crank pulley back on the crank and align it by placing the key into the slot. Then button everything back up the way it was removed, and your all set.
On the later model Hondas and Acuras the timing belt needs to be changed every 90,000miles. Sooner if the car see's a lot of abuse. Changing the timing belt is sort of like changing the oil. You do not want to wait until it breaks to change it, as catastrophic damage may occur. Its more of a preventative maintenence to have it changed before it breaks. Generally, there are no signs of it wearing or breaking prior to it happening, it is a immediate and is sudden with no warning whatsoever. So keep track of your milage and have it changed when the service limit as been reached.
Typical replacement should take about 1.5hours with the proper tools.
You clearly see in this picture that the timing belt has been severly damaged and has literally seperated into two halves. The car still ran fine, but luckily we caught it before it snapped. Normally, there is an upper timing belt cover that completely encloses the timing belt and cam gears, however this motor was equipped with adjustable cam gears and the owner had removed the upper cover to ease the adjusting of the gears. Otherwise, you will have to remove the valve cover in order to remove the upper timing belt cover to access the cam gears and perform the timing belt change. To see how to remove the valve cover, click here.
The next thing to do is the remove the driverside wheel so you can access the crank. Use and impact gun to remove the crank bolt, otherwise you will have to use a really long extention and a long pole to get enough leverage to break the bolt loose by hand. Have someone sit in the car and step on the brakes while the car is in gear while you do it so the car doesn't rock or move.
In order to remove the lower timing belt cover, you will have to remove the upper driverside engine mount. Also, before going any further, put the crank bolt back on and rotate the crank until the timing mark on the cams gears line up. On the OEM cam gears, the 'UP' arrows should point up and the timing marks on the teeth should line up the same as shown in the picture.
Once that is complete, you can now release the tention on the alternator by loosening the upper bolt. If your car is equipped with AC then now is a good time to loosen the tensioner for the AC belt as well.
To allow the alternator to swivel and release the tention on the belt, the lower alternator bolt also has to be loosened. You should now be able to slide the alternator in its bracket and release the tention on the alternator belt and remove it from the crank. When you remove the crank pulley, be sure not to lose the key! Place it in a safe location.
Now you can remove the 10mm bolts that hold the lower timing belt cover on. There are two on the underside and three from the top.
Once the bolts are removed, you can slide the cover off and out from the bottom of the vehicle. Notice the timing belt powder at the bottom of the cover.
You can see in this picture where all the 10mm bolts are located that hold the lower timing belt cover in place. You can also see how the timing belt is run through the cam gears, water pump and tensioner.
Be sure to take note of how the timing belt is run. The tensioner pulley must be loosened now as the final step before you can pull off the old belt. Using a 14mm box wrench, loosen the bolt in the center of the tensioner pulley.
Once the tensioner is loose, you can go ahead and remove the old timing belt. Take care not to move the cam gears too much during this process. You can see that the timing belt was severely damaged. The owner takes blame for dropping a tool down into the timing belt cover while working on the car. Ouch!
Before placing the new belt on, make sure you have the crank lined up. You can see there is a mark on the lower gear that needs to be aligned with a mark on the block. Turn the crank using the crank bolt if necessary to line them up. Then open up the new timing belt.
Once the lower gear is lined up, double check that the cam gears are also lined up correctly. Starting at the crank, place the new timing belt on and work your way around the tensioner and water pump and finally place the new belt over the cam gears. Some patience may be required during this step.
Once the new belt is in place, you will need to retension the tensioner pulley. To do so, place the crank bolt back on the crank and turn the crank counterclockwise three teeth and then tighten the tensioner pulley. The timing belt should have about a 1 inch deflection if you press on it in the center along the front of the loop (long side).
Once again, the owner accepts the blame for dropping more debris down the timing belt cover. Please be careful when working around the timing belt especially if you have the upper cover removed or have holes in it. If the timing belt breaks, you can easily destroy the head, valves and or pistons. Even worse, you could damage the cylinders.
Now you can replace the lower timing belt cover being careful not to overtighten the 10mm bolts.
Once the cover is in place, put the crank pulley back on the crank and align it by placing the key into the slot. Then button everything back up the way it was removed, and your all set.
Honda-Tech Member
Joined: Oct 2002
Posts: 2,554
Likes: 1
From: Plano, TX, usa
Re: timing belt remove/install b18c (integra6650)
why would you crack both cam gear bolts loose?
You might want to start with the crankshaft bolt first. If you cant get that to break loose then there's no point in doing everything else.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra6650 »</TD></TR><TR><TD CLASS="quote">its farely easy 1. pull off valve cover 2. pull off driver engine mount 3. pull off all the 10 or 12 mm nuts in timing belt cover 4. crack both cam gear bolts loose not off 5. loosen tensioner pull off belt 6. take gears off replace set everything to tdc put belt of tension and work in reverse but check elsewhere before following my cliff notes its been a while since i did my timing</TD></TR></TABLE>
You might want to start with the crankshaft bolt first. If you cant get that to break loose then there's no point in doing everything else.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra6650 »</TD></TR><TR><TD CLASS="quote">its farely easy 1. pull off valve cover 2. pull off driver engine mount 3. pull off all the 10 or 12 mm nuts in timing belt cover 4. crack both cam gear bolts loose not off 5. loosen tensioner pull off belt 6. take gears off replace set everything to tdc put belt of tension and work in reverse but check elsewhere before following my cliff notes its been a while since i did my timing</TD></TR></TABLE>
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Honda-Tech Member
Joined: Oct 2002
Posts: 2,554
Likes: 1
From: Plano, TX, usa
Re: timing belt remove/install b18c (integra6650)
my bad, didnt see the cam gear part in his post.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra6650 »</TD></TR><TR><TD CLASS="quote">it sounded like he wanted to swap cam gears and in my experience their easier to take off when their still tentioned</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra6650 »</TD></TR><TR><TD CLASS="quote">it sounded like he wanted to swap cam gears and in my experience their easier to take off when their still tentioned</TD></TR></TABLE>
Thread Starter
Junior Member
Joined: Sep 2002
Posts: 152
Likes: 0
From: canada
Re: timing belt remove/install b18c (integra6650)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra6650 »</TD></TR><TR><TD CLASS="quote">it sounded like he wanted to swap cam gears and in my experience their easier to take off when their still tentioned</TD></TR></TABLE>
so i won't do any damage to the belt by trying to loosen the cam gear bolts with the belt still on? and when i put the new cam gears on should i have the belt on and everthing back together before i tighten the cam gear bolts? last thing if all i'm doing is changing the cam gears do i even need to do anything with the crankshaft bolt and pulley? thanks for the help guys
so i won't do any damage to the belt by trying to loosen the cam gear bolts with the belt still on? and when i put the new cam gears on should i have the belt on and everthing back together before i tighten the cam gear bolts? last thing if all i'm doing is changing the cam gears do i even need to do anything with the crankshaft bolt and pulley? thanks for the help guys
Honda-Tech Member
Joined: Jun 2003
Posts: 603
Likes: 0
From: Temecula, CA, USA
Re: (JMU1337)
Just change the cam gears! haha you dont have to mess with the crank pulley at all. You can swap gears with a tensioned belt. Make sure everything is TDC when done and you are good to go! good luck, god speed. 
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