Another TDC Question - Compression Stroke
Another TDC Question - Compression Stroke Many of the methods I've read for determining TDC on the compression stroke involve looking at rocker movement, putting marks on the balancer or referencing the dots on the timing gear.
As my engines sits (on an engine stand), the timing cover is installed, there is no balancer/lower pulley installed and the rockers are not yet installed.
I just want to install the rockers/pushrods and be able to accurately count the number of turns it takes to go from zero lash to 22 ft lbs (this is a stock LS2 with a cam/spring swap).
I need to determine TDC on the compression stroke. Obviously, the piston reaches the top position twice per cycle but without the rockers installed both valves are always closed. Without visual reference to the timing marks, how do I know which stroke I'm on?
Should I just install the push rods on the #1 cylinder and set both of those rockers to zero lash so I can verify valve position on #1 while rotating the engine?
TIA.
Tipsy
As my engines sits (on an engine stand), the timing cover is installed, there is no balancer/lower pulley installed and the rockers are not yet installed.
I just want to install the rockers/pushrods and be able to accurately count the number of turns it takes to go from zero lash to 22 ft lbs (this is a stock LS2 with a cam/spring swap).
I need to determine TDC on the compression stroke. Obviously, the piston reaches the top position twice per cycle but without the rockers installed both valves are always closed. Without visual reference to the timing marks, how do I know which stroke I'm on?
Should I just install the push rods on the #1 cylinder and set both of those rockers to zero lash so I can verify valve position on #1 while rotating the engine?
TIA.
Tipsy
TECH Apprentice
Joined: Feb 2014
Posts: 328
Likes: 1
From: Baton Rouge La
Many of the methods I've read for determining TDC on the compression stroke involve looking at rocker movement, putting marks on the balancer or referencing the dots on the timing gear.
As my engines sits (on an engine stand), the timing cover is installed, there is no balancer/lower pulley installed and the rockers are not yet installed.
I just want to install the rockers/pushrods and be able to accurately count the number of turns it takes to go from zero lash to 22 ft lbs (this is a stock LS2 with a cam/spring swap).
I need to determine TDC on the compression stroke. Obviously, the piston reaches the top position twice per cycle but without the rockers installed both valves are always closed. Without visual reference to the timing marks, how do I know which stroke I'm on?
Should I just install the push rods on the #1 cylinder and set both of those rockers to zero lash so I can verify valve position on #1 while rotating the engine?
TIA.
Tipsy
As my engines sits (on an engine stand), the timing cover is installed, there is no balancer/lower pulley installed and the rockers are not yet installed.
I just want to install the rockers/pushrods and be able to accurately count the number of turns it takes to go from zero lash to 22 ft lbs (this is a stock LS2 with a cam/spring swap).
I need to determine TDC on the compression stroke. Obviously, the piston reaches the top position twice per cycle but without the rockers installed both valves are always closed. Without visual reference to the timing marks, how do I know which stroke I'm on?
Should I just install the push rods on the #1 cylinder and set both of those rockers to zero lash so I can verify valve position on #1 while rotating the engine?
TIA.
Tipsy
