I take it from your comment either you've never degreed a cam at all or you've never done a complete job.
Degreeing only one cylinder on one stick is only 1/8 of the job (if it's a V8).
What I work with is sets of 4 sticks, 6 lobes per stick , 2 sets of 3 lobes with 2 different profiles.
If cylinder no 1 is OK, are all the others OK........well no because cylinder no 1 is only 2 sticks.
So you've got to repeat with cylinder no 4 (60 degree v6 with finger followers).
Then when you've done no 4, go back and do 2, 3, 5 and 6 and compare the results.
Are they the same?
Because you've got valve springs pushing on the cams making them turn slightly either 1 way or the other so you've got to remove all the rockers except for the one you're measuring.
Then there's the belt tensioner and even though it's tight, there's still a bit of backlash.
So that needs tightening mechanically.
Then it's getting close.
As well as measuring IO, IC, EO and EC at various different lifts, it's better to just adjust the lash so there isn't any then go round with the dial gauge and measure lift every 3 crank degrees.
Then you KNOW that the cams are asymmetrical and have flat tops to them.You'll also know the rocker ratio which in it's self isn't a fixed number but it varies throughout the lift.That's once you've measured lobe lift as well as valve lift.
Then when you find the errors how do you fix them?
By offsetting the dowel hole in the cam gear, that's how.
The first time I did this (similar method) was with a set of regrinds (just a normal V6 24V)I rang the cam company afterwards and told them that their cams were crap and the 2 banks had different profiles (it's NOW a documented fact,found by others with other brands too, so it's not just me)
The reply was that they must be OK because cam doctor said so.
OK so what about cam doctor then?
It doesn't work right with finger followers due to the geometry involved.
So the cam company got fired, I'll never use them again.
Who was right....me?
or the cam company?
I can't say who the cam company is, only that they're not far from home.
Last edited by user-23911 on Tue Jul 10, 2018 10:21 pm, edited 1 time in total.