How do you check mechanical timing and compression
02-10-2009, 02:36 PM
#3
Re: How do you check mechanical timing and compression
02-10-2009, 02:37 PM
#4
Re: How do you check mechanical timing and compression
Is your engine SOHC or DOHC?
Mechanical timing for SOHC: Remove valve cover and upper timing belt cover. Use a 17-mm socket and ratchet to turn the crankshaft pulley counterclockwise until the camshaft gear is oriented precisely at TDC1 (see diagram). With the cam gear in this position, the white TDC1 mark on the crankshaft pulley should align precisely with the pointer (see diagram). If not, the mechanical timing is OFF.
Mechanical timing for SOHC: Remove valve cover and upper timing belt cover. Use a 17-mm socket and ratchet to turn the crankshaft pulley counterclockwise until the camshaft gear is oriented precisely at TDC1 (see diagram). With the cam gear in this position, the white TDC1 mark on the crankshaft pulley should align precisely with the pointer (see diagram). If not, the mechanical timing is OFF.
Last edited by Former User; 02-10-2009 at 02:44 PM.
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