Topic: reinstalling cam

[MasterChief750]

ill be putting my cam back in eventually but i wanted to clear up a question i had. you ime it off of 1-4 tdc but after you have te cam off and you have rotated the engine how do you know if 1 or 4 is at tdc or does it not matter?

[Deltarider]

1 and 4 are both TDC at the same time, so it doesn't matter.

[dave500]

the cam spins at one half speed of the crank shaft,,the line up slot on the cam can be rearward on the head,,or forward as per instructions.pistons 1+4 rise and fall together,,as do pistons 2+3,the spark also occurs as say 1 fires and 4 exhausts and visa versa,a wasted spark,the same for 2+3.um,not trying to confuse you.

[MasterChief750]

i understad what you are saying glad i dont have to tear into the cas or something to make sure a piston is on fire or something. i figured that it didnt matter but i didnt want to screw it up.