With #1 piston at TDC what are the remaining pistons doing?
Joined: Nov 2001
Posts: 3,043
Likes: 0
From: Texas and Qatar
Re: With #1 piston at TDC what are the remaining pistons doing? Off the top of my head, I hope I got it in the right order. There is a cylinder firing ever 90 deg of crankshaft rotation, making one complete cycle every two crankshaft revolutions.
TDC = Top Dead Center
BDC = Bottom Dead Center
#1 TDC Power Stroke (Firing Position)
#8 In between BDC and TDC during Compression stroke - Piston moving up
#7 BDC about to start Compression stroke, is at BDC from just finishing Intake stroke - Piston starting to move up from BDC
#2 In between BDC and TDC during Intake stroke - Piston moving down
#6 TDC Exhaust stroke, about to start Intake Stroke - Piston starting to move down from TDC
#5 In between BDC and TDC during Exhaust stroke - Piston moving up
#4 BDC about to start Exhaust stroke, just finished Power stroke - Piston starting to move up
#2 Midway through Power Stroke - Piston moving down
TDC = Top Dead Center
BDC = Bottom Dead Center
#1 TDC Power Stroke (Firing Position)
#8 In between BDC and TDC during Compression stroke - Piston moving up
#7 BDC about to start Compression stroke, is at BDC from just finishing Intake stroke - Piston starting to move up from BDC
#2 In between BDC and TDC during Intake stroke - Piston moving down
#6 TDC Exhaust stroke, about to start Intake Stroke - Piston starting to move down from TDC
#5 In between BDC and TDC during Exhaust stroke - Piston moving up
#4 BDC about to start Exhaust stroke, just finished Power stroke - Piston starting to move up
#2 Midway through Power Stroke - Piston moving down
