Advance CAM Timing (who's done it?)
08-10-2006, 01:15 PM
#31
Rennlist Member
I was using the WSM technique. i forgot the values to coorelate.
something like, at 10degrees passed TDC the lifter lift was 1mm and at 20degrees it was near 2mm. Ill have to pull out my notes. i think to move the cam position from the 1.6mm to the 2mm on the cam pulley adjuster, it was like a bolt width of movement. probably a degree or two of cam timing
Mk
something like, at 10degrees passed TDC the lifter lift was 1mm and at 20degrees it was near 2mm. Ill have to pull out my notes. i think to move the cam position from the 1.6mm to the 2mm on the cam pulley adjuster, it was like a bolt width of movement. probably a degree or two of cam timing
Mk
Originally Posted by Darien Nunn
Mark,
Did you use the porken tool?? Not sure what 2mm, does that equate to deg?
Did you use the porken tool?? Not sure what 2mm, does that equate to deg?
08-10-2006, 01:39 PM
#32
Inventor
Rennlist Member
Rennlist Member
Using the WSM dial indicator method, you're measuring from the face of the follower the amount of lift (downward push) of an intake cam lobe. The lift starts small, and goes up rapidly as the cam is turned.
Changing the measurement only will give unpredictable results. The way most people* guestimate advance or retard is to use the WSM figure, but at an imagined ± from 20° (eg. 18°/22°) shown on the balancer.
*Louie uses one of those big *** degree wheels on the crank.
Changing the measurement only will give unpredictable results. The way most people* guestimate advance or retard is to use the WSM figure, but at an imagined ± from 20° (eg. 18°/22°) shown on the balancer.
*Louie uses one of those big *** degree wheels on the crank.
