Can't F#*N get the degreeing correct on the cams!! Please help ME!! - Kawasaki ZX-10R.net
 
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post #1 of 7 Old 03-29-2008, 09:12 PM Thread Starter
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Can't F#*N get the degreeing correct on the cams!! Please help ME!!

I am "trying" to degree the intake and exhaust cams. I have the correct tools, the rotor runout tool with micrometer and a degreeing wheel attached to the right side bolt head.
No matter how I adjust the sprocket it comes up with the same FREAK"N answer. I have read and read and read the muzzys and webcams instructions over and over, but for the life of the can't get it to work out.
Here is my math problem... at .050 my intake opening at 39 degrees and closes at 108.
so 39 + 108 + 180 = 327/ 2 = 163.5 - 39 = 124.5 lobe center
ok so I adjusted the sprocket and came up with 61 + 128 + 180 = 369 /2 = 184.5- 61= 123.5
Same shit with the exhaust...
I MUST me doing some stupid here!!

Please help me out..
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post #2 of 7 Old 03-29-2008, 11:51 PM
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you need to do the ex cam first.You are off a cog or two not sure which way,just go one way and run the math,you will soon find what direction to go.It takes awhile to figure out.But you are doing the math right.Hope that helps....
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post #3 of 7 Old 03-30-2008, 12:08 AM
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here are the numbers you need to see on your degree wheel 42 and 14 which will give you 104 LC on the exhaust and on the intake you need 51 and 17 which will give you 107LC. I checked mine at 40 thousands not 50.
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post #4 of 7 Old 03-30-2008, 12:24 AM Thread Starter
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Originally Posted by speeddemon View Post
you need to do the ex cam first.You are off a cog or two not sure which way,just go one way and run the math,you will soon find what direction to go.It takes awhile to figure out.But you are doing the math right.Hope that helps....

Thanks for the help. I will give it another try in the morning.
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post #5 of 7 Old 03-30-2008, 11:07 AM Thread Starter
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well it isn't work'n out for me. My duration number are double of what they should be.... I am in the 60's while the suggested ones are in the upper 20's. Any ideas of something that I may doing wrong??
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post #6 of 7 Old 03-30-2008, 12:58 PM
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my next suggestion would try using the stock location and see what numbers you come up with.Are you sure you are on number one cylinder?That is the one on the left side sitting on the bike.If that works mark your cams then move to the sloted ones.then go from there.Thanks curt
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post #7 of 7 Old 03-30-2008, 02:28 PM
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Tools you'll need

Degree Wheel TDC 0-180 BDC
Standard 1" dial indicator
Indicator stand
Piston stop
Coat hanger
Paper and pen
Calculator


1) Bend and attach the coat hanger to the stator side of your motor

2) Set motor to TDC according to timing mark on the starter clutch and cover

3) Install Degree wheel on motor so that the goat hanger points at the TDC indication on the wheel

4) spin the motor so that you read 90 degrees off of TDC

5) Install the piston stop

6) Slowly rotate the motor in the running direction until it hits the stop

7) Write down the number indicated on the degree wheel

Rotate the motor in the other direction until it hits the piston stop

9) Write down the number indicated on the degree wheel

10) Add the numbers from steps 7 and 8 then divide by two
Example: 49 degrees and 53 degrees (the average is 51 degrees)

11) Move the coat hanger to 51 degrees on the degree wheel
NEVER MOVE THE WHEEL

12) Check it by repeating steps 6 thru 10
You must have the same numbers in both directions when the piston stop comes into contact with the piston before continuing

13) Install on the intake side your dial indicator so that it is perpendicular to the cam buckets and does not contact the cam or head.
This may require using a piece of coat hanger to contact the bucket

14) Rotate the motor in the running direction until the dial indicator is at maximum lift

15) Set that as 0" on your indicator. Rotate the motor several times to make sure it returns to 0"

16) Rotate the motor in the running direction until you are .040" from maximum lift displayed on your dial indicator. Write down the number indicated on your degree wheel
Never rotate the motor in the reverse direction while degreeing cams

17) rotate the motor until you are .040" past maximum lift Add this and the number from step 16

18) Divide that number by 2
Example 63+147=210 divide by 2 = 105
Your lobe center of your intake cam is 105 to raise that number loosen the cam sprocket and rotate the motor in the running directions. To lower it do the opposite

Always double check your work

Repeat steps 13 -18 on the exhaust side. The only difference is that to increase the lobe center you rotate the motor in the opposite direction.

When you are done red loctite your cam gear bolts, and check your piston to valve clearances.
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