I am in the process of rebuilding my 95 h22 after having the head ported and polished and i'm putting the cams back on and i'm having some issues getting them to stay at tdc. Are any of the valves supposed to be open when the cams are sitting at tdc? If not, how do i fix the cams and cam gears?

 

Hey man had the same question when i did a timing belt replacement on my h23...
Here is how i did it.

-loosened tensioner
-set and hold intake cam with wrench to tdc( you will be compressing some of the valve springs so there will be a bit of pressure to hold against)
-put timing belt on intake cam gear.
-do the same to the exhaust cam!
-Pretty easy once you screw up a couple of times!

 

your valves will be closed at TDC compression stroke, which is where your supposed to set it from. Also BTW your looking at cylinder #1.

 

So are you just having a problem getting the timing belt on and keeping the cams at TDC? The cams, cam holders & cam gears (at 0,0) should all be installed prior to the belt; at that point my cams didn't move around all that easily. Helm's manual recommends to install the exhaust side first and then do the intake side. If it's a new belt, it will be pretty tight and is a PITA; if you want to cheat, Honda makes a timing belt slider tool to ease installation.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gstrudler &raquo;</TD></TR><TR><TD CLASS="quote">So are you just having a problem getting the timing belt on and keeping the cams at TDC? The cams, cam holders & cam gears (at 0,0) should all be installed prior to the belt; at that point my cams didn't move around all that easily. Helm's manual recommends to install the exhaust side first and then do the intake side. If it's a new belt, it will be pretty tight and is a PITA; if you want to cheat, Honda makes a timing belt slider tool to ease installation.</TD></TR></TABLE>

ive seen that tool in the manual where do you actually go to get it ? Because that slider tool looks like it would help alot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vttitan18 &raquo;</TD></TR><TR><TD CLASS="quote">Are any of the valves supposed to be open when the cams are sitting at tdc? If not, how do i fix the cams and cam gears?</TD></TR></TABLE>

"tdc" is used to describe the piston/crank position, but yes, there will typically be some valve spring pressure on the cam(s) when putting on a timing belt. When cylinder #1 is at tdc its valves should all be closed but other cylinders will be at a different position in the cam cycle. If you have to adjust the valves anyway, you can loosen all the lash adjusters to relieve some of this spring load.