Question about 1990 Honda Civic

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Valve ajustment how do I adjust the valves on my vehicle

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Buy a Honda Civic Service manual if you don't already have one.
Buy a Feeler Gauge if you don't already have one.
Buy a Crankshaft Pulley holder if you don't already have one.

1. Remove your valve cover. You should find several bolts holding it down against your engine. Remove spark plug cables if they're in the way.

2. Remove your upper timing belt cover. You should find a couple small bolts holding it against the side of your engine block.

3. Jack up the front of your car (timing belt side) onto jackstands and remove the wheel.

4. Remove the splash guard in your wheel well covering your crankshaft pulley. You should find a couple plastic screws holding it in place.

5. Attach a ratchet wrench or breaker bar to your Crankshaft Pulley holder.

6. Turn your Crankshaft pulley until the "up" mark on your camshaft is on the top, or TDC (top dead center).

7. Use a marker and write '1' next to the "UP" mark to help you remember which cylinder valve is okay to adjust.

8. Mark a dot 90 degrees counter-clockwise on the camshaft pulley and write '3'.

9. Mark a dot180 degrees on the camshaft pulley and write '4'.

10. Mark a dot 90 degrees clockwise on the camshaft pulley and write '2'.

12. Adjust the intake valve for the cylinder number you've marked for the position on the camshaft. Find the right intake gap identified in the repair manual.

13. Slide the feeler guage in between the valve spring and the adjustment screw. If it will not slide in or is too loose, use a box wrench to loosen the locknut for the valve and use a flathead screwdriver to adjust the valve screw. Retighten the locknut when properly adjusted.

14. Adjust the exhaust valve for the cylinder number you've marked for the position on the camshaft. Find the right exhaust gap identified in the repair manual.

15. Slide the feeler guage in between the valve spring and the adjustment screw. If it will not slide in or is too loose, use a box wrench to loosen the locknut for the valve and use a flathead screwdriver to adjust the valve screw. Retighten the locknut when properly adjusted.

16. Turn your Crankshaft pulley 90 degrees counter-clockwise until your mark lines up at the top.

17. Repeat from step 12 until you've completed the last cylinder '2'.

18. Go to step 4 and work your way backwards to return and bolt all the parts back together again.

http://www.HondaCivicRepairs.com

Posted on Nov 15, 2008

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Easyiest way to do that is to go to your local library and look up you torque specs and sequence for your car.

Posted on Aug 29, 2008

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