GrandPrix34 Posted November 13, 2003 Report Posted November 13, 2003 wats the best way to find top dead center besides the pointer on harmonic balancer and timing mark? Quote
AWeb80 Posted November 13, 2003 Report Posted November 13, 2003 Not sure, but hopefully i'll learn something form this thread. Quote
topless94style Posted November 13, 2003 Report Posted November 13, 2003 Take out the plug on the number one cylinder. Damn thats as much as i remember if i keep going it will probably be wrong. I learned how last year but i forgot. sorry. Quote
AWeb80 Posted November 13, 2003 Report Posted November 13, 2003 Take out the plug on the number one cylinder. Damn thats as much as i remember if i keep going it will probably be wrong. I learned how last year but i forgot. sorry. HAHAHAHA, thats more than I know......but not by much Quote
boostnawd Posted November 13, 2003 Report Posted November 13, 2003 take out the plug, stick a screwdriver in it, turn the crank pulley until the screwdriver is at it's highest point. Quote
Robby1870 Posted November 13, 2003 Report Posted November 13, 2003 If you have your cams still on, watch the valves Quote
Robby1870 Posted November 13, 2003 Report Posted November 13, 2003 what if the timing is off? fix the timing No, the best way is to use the mark on the crank pulley Quote
Rob95CS Posted November 13, 2003 Report Posted November 13, 2003 take out the plug, stick a screwdriver in it, turn the crank pulley until the screwdriver is at it's highest point. Yep! Do that. Also, I'm not sure if it applies to these motors, but on my old 307, you would feel a small burst of air come out of the #1 plug socket when the crank came to TDC while turning it.... so you could feel with your finger too, and not a screwdriver. Quote
topless94style Posted November 14, 2003 Report Posted November 14, 2003 take out the plug, stick a screwdriver in it, turn the crank pulley until the screwdriver is at it's highest point. Yep! Do that. Also, I'm not sure if it applies to these motors, but on my old 307, you would feel a small burst of air come out of the #1 plug socket when the crank came to TDC while turning it.... so you could feel with your finger too, and not a screwdriver. So then i did know what i was thinking. Quote
brother pig Posted November 14, 2003 Report Posted November 14, 2003 Also, don't forget top dead center is defined also by the timing. Both valves should be closed when the piston is at its highest point. (you can use the previously stated methods to find this) Quote
brother pig Posted November 14, 2003 Report Posted November 14, 2003 Also, don't forget top dead center is defined also by the timing. Both valves should be closed when the piston is at its highest point. (you can use the previously stated methods to find this) Quote
TeeJay3800 Posted November 14, 2003 Report Posted November 14, 2003 Can anyone give a good definition of top dead center or explain it in practical terms :?: Quote
Robby1870 Posted November 14, 2003 Report Posted November 14, 2003 Top Dead Center, TDC is the point in the travel of the piston where it is at the top, AND, after the intake valve of the cylinder has opened and closed. TDC is the spot or time when the spark plug is fired and the mixture is ignited. Quote
TeeJay3800 Posted November 14, 2003 Report Posted November 14, 2003 Gotcha. That makes sense. I'm still a little confused though cuz I've heard TDC used in other situations and in different ways. Quote
getragz34 Posted November 18, 2003 Report Posted November 18, 2003 The screwdriver trick works pretty good, but make sure the motor is in the compression stroke and wait till screwdriver gets to the highest point. Then slowly rotate crank a little bit further until screwdriver starts to go down, this is to make sure your at TDC. THen rotate crank back so the screwdriver is at its peak. Hope that helps Quote
joey b Posted November 20, 2003 Report Posted November 20, 2003 TDC = Top dead center AND Twin Dual Cam (3.4 DOHC) Quote
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