How To: H23 Valve Adjustment
#1
Honda-Tech Member
Thread Starter
Join Date: Dec 2004
Location: Las Vegas, NV
Posts: 2,930
Likes: 0
Received 0 Likes
on
0 Posts
How To: H23 Valve Adjustment
Disclaimer: This is a guide. I you mess something up....you did it, not me!
Thanks to Pirate for helping me out with this....
I noticed ont the current write up the pictures were not working, so I thought I would make a little refresher course
Tools you will need include:
- Torque wrench
- Ratchet x2
- 6" extension x2
- 19mm Socket - crank pulley
- 12mm Socket - Torque wrench
- 10mm Socket - VC nuts
- Spark plug socket
- 12mm combination wrench
- Flat head screwdriver
- Feeler gauges
- Mechanix gloves
- Beer, water, soda (I.E. your drink of choice) mine was water
Honestly its not a hard job, just tedious. I think it took me 45 minutes MAX.
This is what you walk up to when you open your hood! wow an engine
First step: Remove Valve cover.
5 10mm Bolts(don't loose the washers and seals)
PCV valve
VC Ground
take out spark plug wires
and remove spark plugs (makes it easier to rotate crank)
Try not to break your VC gasket. If it comes of in one piece and it looks good, reuse it. If not, spend the $5 and get a new one.
This is what you'll see when the VC is off
Step 2: I know the Helms says rotate the crank CCW to TDC.
While searching around I came across a thread by the Late Marcucci. Instead of using TDC just rotate so the cam Lobe is pointing away from the rocker. It worked for me, but do what you choose.
Step 3:
Once the cam Lobes are pointing away from the rocker, check your clearence. Notice right now the .006 fits. I'm adjusting the EXH to .006 and the intake to .004(specs courtesy of Pirate)
If the .006 fits, try the .007. Does it fit? If so. Loosen the Lock nut and tighten the adjustment screw. After doing a couple you'll get a feel for it. Now everyone says "BE CAREFUL NOT TO MOVE THE SCREW." Yea Yea. Now, you really dont have to be THAT careful. Just hold it in place and tighten the lock nut. Recheck your clearence. If it works great.
I adjusted the valves so the .006 had some drag (but still fit), and the .007 did not fit. It takes time so be patient.
I went through and did all of the EXH valves, then the IN.
Step 4:
GO BACK AND CHECK EVERYTHING AGAIN!
Step 5:
CHECK IT AGAIN
Step 6: Torque the lock nuts to 20 ft/lbs
Step 7: Reinstall step 1.
Step 8: Start the car up and listen to your new quiet valves!
Thanks to Pirate for helping me out with this....
I noticed ont the current write up the pictures were not working, so I thought I would make a little refresher course
Tools you will need include:
- Torque wrench
- Ratchet x2
- 6" extension x2
- 19mm Socket - crank pulley
- 12mm Socket - Torque wrench
- 10mm Socket - VC nuts
- Spark plug socket
- 12mm combination wrench
- Flat head screwdriver
- Feeler gauges
- Mechanix gloves
- Beer, water, soda (I.E. your drink of choice) mine was water
Honestly its not a hard job, just tedious. I think it took me 45 minutes MAX.
This is what you walk up to when you open your hood! wow an engine
First step: Remove Valve cover.
5 10mm Bolts(don't loose the washers and seals)
PCV valve
VC Ground
take out spark plug wires
and remove spark plugs (makes it easier to rotate crank)
Try not to break your VC gasket. If it comes of in one piece and it looks good, reuse it. If not, spend the $5 and get a new one.
This is what you'll see when the VC is off
Step 2: I know the Helms says rotate the crank CCW to TDC.
While searching around I came across a thread by the Late Marcucci. Instead of using TDC just rotate so the cam Lobe is pointing away from the rocker. It worked for me, but do what you choose.
Step 3:
Once the cam Lobes are pointing away from the rocker, check your clearence. Notice right now the .006 fits. I'm adjusting the EXH to .006 and the intake to .004(specs courtesy of Pirate)
If the .006 fits, try the .007. Does it fit? If so. Loosen the Lock nut and tighten the adjustment screw. After doing a couple you'll get a feel for it. Now everyone says "BE CAREFUL NOT TO MOVE THE SCREW." Yea Yea. Now, you really dont have to be THAT careful. Just hold it in place and tighten the lock nut. Recheck your clearence. If it works great.
I adjusted the valves so the .006 had some drag (but still fit), and the .007 did not fit. It takes time so be patient.
I went through and did all of the EXH valves, then the IN.
Step 4:
GO BACK AND CHECK EVERYTHING AGAIN!
Step 5:
CHECK IT AGAIN
Step 6: Torque the lock nuts to 20 ft/lbs
Step 7: Reinstall step 1.
Step 8: Start the car up and listen to your new quiet valves!
Last edited by 95greenlude; 06-11-2009 at 02:15 PM.
#3
Honda-Tech Member
Join Date: Jan 2004
Location: Further down the spiral, TX, usa
Posts: 10,629
Likes: 0
Received 1 Like
on
1 Post
Re: How To: H23 Valve Adjustment
Very nice writeup
That rotating to TDC stuff is a big waste of time like you said. All you need is the cam lobe to not be contacting the rocker arm and you can do the valve lash. Usually 2-3 sets can be done at a time before you have to rotate the engine to a new position.
That rotating to TDC stuff is a big waste of time like you said. All you need is the cam lobe to not be contacting the rocker arm and you can do the valve lash. Usually 2-3 sets can be done at a time before you have to rotate the engine to a new position.
Trending Topics
#8
Re: How To: H23 Valve Adjustment
so im thinking of doing this today. where can i get that tool that reads the .006 and .007 measurements? also a little more specification to what ill be doing after removing the valve cover would be nice. i havent had my 95 si for that long but i want to learn to do this stuff on my own so im not paying hundreds for a job, you know? im only 17 so i can learn. plz help. i got a damn list of crap i need to fix within the month on my ride.
#9
Re: How To: H23 Valve Adjustment
so im thinking of doing this today. where can i get that tool that reads the .006 and .007 measurements? also a little more specification to what ill be doing after removing the valve cover would be nice. i havent had my 95 si for that long but i want to learn to do this stuff on my own so im not paying hundreds for a job, you know? im only 17 so i can learn. plz help. i got a damn list of crap i need to fix within the month on my ride.
http://axidworks.com/index.php?route...n/faq&topic=85
Download a manual and read it. You can get a FEELER GAUGE at any auto store for no more than 5 bucks.
#11
Thread
Thread Starter
Forum
Replies
Last Post
camshafted
All Motor / Naturally Aspirated
1
05-15-2009 04:45 PM
masterkill455
Honda Accord (1990 - 2002)
8
04-02-2009 11:26 AM
Si-Yaaa!
Tech / Misc
2
07-28-2003 10:46 AM