To a Ford expert on 5.4L V8 Triton engines
: I have 2 questions both asking if the procedures I conducted, first in timing the camshaft
gears to the crankshaft and second if torquing the cylinder head bolts, were correct.
Camshaft gear timing: According to the Haynes Repair manual, I placed the #1 piston at top dead center, with the first crankshaft gear cog notch pointing at the timing chain cover notch. Then the camshaft gear notches, both left and right, are placed so that the notches are perpendicular, 90 degrees, to the flat side line of the cylinder heads, both left and right. The timing chains are then placed over the crankshaft cog gears, first rear cog for the left head cam gear, and front cog for the right head cam gear and over the cam shaft gears; being careful not to move/rotate the cam gear. My question then, is this the correct procedure to time the crank to cams? I did check the cam lobes to see that they were not touching the rockers for each valve (exhaust
& intake) and they were not. I turned the crankshaft to the TDC of the next piston according to the firing order and again the cam lobes did not touch the rockers. I did the same thing for each of the other pistons and of the 8 piston positions, none of the cam lobes touched the rockers. So, I hope, the procedure was correct, was it?
My next questions concerns the torque tightening of the cylinder head bolts. First, I used new bolts. According to the Haynes manual, starting with the center located bolts, first each bolt is tightened to 30 lbs. The problem with this first step, is that the lb pressure to tighten to 30 lbs can hardly be felt. In fact I had loosen the bolts up, twice and start over because I could not at first, feel the torque wrench snap at 30 lbs. I had to be extremely slow to feel the snap. Thereafter, from the center bolts on, the wrench is turned to a 90 degree point (position from the starting point) until all of the bolts are tightened to that 90 degree amount. Then, according to the Haynes manual, beginning with the center bolts, again, turn the wrench to another 90 degrees from the starting point on all the bolts. And that's it. One does not use torque pounds to tighten the head bolts, only two 90 degree turns to tighten the bolts. Besides the problem with the first 30 pounds, the method of tightening the bolts, two 90 degree turns is to me, extremely inaccurate. Is this the correct procedure? Or will there be problems later? Please help, Steve O.