Ok, someone please help me out.
My heads came from MHS degreed and ready to bolt on. The dot on the cam sprockets is at 11 for the passenger side (labeled RIGHT, using the driver's perspecive I presume) and at 1 oclock for the driver side head. I have my engine at TDC, pistons 1 and 6 are currently at (or very near) tdc.
It's a stock rotating assembly for a 2003 Explorer, dished pistons. When I go to put the heads on, I see the intake valve for piston 6 are partially open, which sets off klaxon alarms in my head as my brain screams DON'T YOU DARE BEND THOSE VALVES!
I can go get my calipers from my reloading set, and see if the dish is sufficient so that there isn't PTV or am I just freaking out a little too much.
I know the firing order is 1,3,7,2,6,5,4,8, so does that mean 6 is starting intake stroke as 1 is sparking?
With engine at TDC, and this head installed on driver side, piston 6 is at TDC (or near it) and intake valve is open on cyl 6.
I see exhaust is open on 5 as well.
Dot is at 6oclock, I did put timing cover on to verify position.
Original crank gear
The new TFS adjustable crank gears, marked for installation
So the dot is lableled 110*, while the other cog is labeled 0, I am supposed to use the dot for timing, right? Cams are 110* intake centerline, one was correct, the other is 112* according to the cam card.
What does A2 mean?