I know it's different on most cars but what are the force needed on cars you have or worked on.. Is there an average range? I get compression ratios but neee to know the actual force needed to drive that piston down constantly.

closed as too broad by cory, Mauro, MooseLucifer, Bob Cross Mar 10 '17 at 20:02

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  • what specific engine are you wondering about? are you looking for "X Newtons"? This is HIGHLY dependent on the engine. – Zshoulders Mar 10 '17 at 15:49
  • What vehicle are you repairing? – cory Mar 10 '17 at 16:07
  • force needed to drive it down the cylinder manually (when assembling), is the conrod attached to the crankshaft? is the engine in gear? under accelleration, deceleration, constant speed? what type of engine? diesel, petrol, sports car? 4 stroke, 2 stroke? think this question needs a lot of work before it can be answered well. – Mauro Mar 10 '17 at 16:08

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