Update: I finally got the machined head and new gasket on, and the camshaft dot was about 15 degrees BTDC. I rotated it with a punch until it was about correct, but still need to do so a little more. This was done WITHOUT the chain being connected to the crankshaft.
At this point, I figured the crankshaft was off by so much because it was machined, and new valves and guides were installed. Is rotating it separate of the crankshaft, correct? Truly, I don't see how I'd get everything to line up without doing so, I just want to make sure I'm not going to end up with valves and pistons that collide.
I realized that I'd installed the chain incorrectly, previously. There are two shiny links that are really hard to distinguish and are basically only visible in the correct light and from a certain angle. The chain I have has 8 "max top" links, so I thought that centering two of those at the dot on the camshaft was correct, but it wasn't. I see that now.
The crankshaft hasn't been moved whatsoever since I took everything apart. I'm figuring this: rotate the camshaft a little more clockwise so that that dot, key, and bottom bright link on the chain are all in alignment. Then, put the bottom bright link on the crankshaft at the dot, reattach the crankshaft gear and timing chain, then insert the distributor to make sure the rotor points to the first spark plug position. If all of that is correct, that means I'm still at TDC on the first piston. What do you think? Am I doing this correctly?
I included a picture of the crankshaft gear and chain zip tied to it. The shiny link is right on the crankshaft gear's dot, and as you can see, the gear is slightly BTDC. This is after I'd rotated it a bit already, but it still needs to be rotated clockwise a bit more so that I can get the bottom link on the correct tooth of the camshaft gear.
Image (Click to make bigger)
Monday, April 15th, 2024 AT 6:43 PM