So I just wanted to add this for archive since searchable topics are the valuable things forums still have.

I was working on an updated cam tool for aligning things during installation and on a whim I double checked the old "common knowledge" that the 6mm deck height advances cam timing 1/2 tooth, or 3.75 degrees. This number has been around longer than since I did my first 2.4 DSM in 2003. Based on CAM diameter, T-belt angle, and deck removed, the actual changes is 4.75-4.85 degrees

If you have a standard cam car, adjusting both 4.75deg retarded will set you straight.

With MIVEC you have to decide if you want to leave it advanced or retard it a tooth. The range of options are,
2.0: -1.2 to +28.8
Adv: +3.6 to +33.5
Ret: -3.9 to +26.1

This is the easy path, pick one and go with it.

Next option is to modify the internal cam and trim the stop. Its just one point to cut and you could potentially do it by hand though you'll end up with a pretty poor contact point. Or if you happen to have a 5axis CNC in the shop then drop it in a vice and cut it down. Its angle from the factory is 10deg from the cross plane. I cut this one down a modest 5 degrees so its now 5deg from the cross plane angle but you could go 10 degrees.

In my case, I cut 5 degrees and retarded timing by 1 tooth which gives me a net: -4 to +31


I'll cut them for personal friends but If "random you" need one cut, English Racing also offers the service.

Hope this helps someone in the future.

 

Good to know for a future build since 4g64 and 4g69 engine cores are available in the junkyard. Its a cost effective engine replacement especially since OEM rotating assemblies go out of stock from time to time.

 

Yeah, 100%. The cheap source of blocks is basically the best reason to switch to a 2.4l.