NA how to: Replace your VC Gasket and CAS O-Ring

[fwdtamiya]

1. Should be pretty obvious, remove the spark plugs wires
2. Remove the rubber breather hoses on the left and right side of the valve cover
3. Remove the 10mm bolts holding the valve cover,

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_130032r_zps128a2b7a.jpg

4. Remove the 12mm bolts holding the coil pack

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_130151r_zps47b67f98.jpg

5. There are 3 electrical connectors near the CAS you'll notice that need disconnected
6. Remove the valve cover!
7. Mark your CAS with white-out, a penil or marker, whatever works.
8. Remove these 3 bolts, or you can just loosen the yellow ones, since we're removing everything, I just prefer to...remove everything. This will give you better visibility of the tangs on the CAS you will need to re-align.

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_132535r_zpseb0478ce.jpg

9. Once you have it out, it should be very obvious what you're replacing.

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_133251r_zps7988318f.jpg

10. Put a little oil on the new O-ring if it makes you feel good and throw the CAS back in it's place.
11. Scrape all the old gasket sealant off your head. I did it carefully with a screwdriver, probably better to use something plastic though, so you don't mar any surfaces.

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_130836r_zpsf9120dee.jpg

12. Remove the old valve cover gasket and toss the new one inside. I did not put oil on the new valve cover gasket because the directions for the vc gasket sealant I was using said it needed to be applied to a dry surface.
13. Apply some gasket sealant to hard corners on the head, there are 2 more spots near the CAS, not pictured.

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140710_144816r_zps85eed7b4.jpg

14. Throw the valve cover back on, tighten bolts to 43-78 INCH-lbs in this order:

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_130032sequence_zps585bf7e8.jpg

15. Bolt in the coil pack
16. Plug back in your electrical connectors near the CAS
17. Put the spark plug wires back in

http://img.photobucket.com/albums/v378/fwdtamiya/91%20BRG/20140709_130032firingorder_zpsc44aa64e.jpg

[atank]

This is an excellent DYI!!!!!!!!!!!!!! Great Pics too!!!!!:slayer:

:bow:Thank You for taking the time for MazdaRoadster!!!!!!:bow:

[Phatmiata]

Most impressive!! And THAT is how you do a good write up!!

Also it should be noted not to over torque those fancy 10mm chrome bolts as if you make it too tight they will snap in half leaving you with more work that you want to deal with.

[kung fu jesus]

Nice work, Garrett! MUCH excite.