jesel belt drive question

Jim Johnston/6022 · 05-16-2016, 12:54 AM

I am able to move crank 3 degrees back and forth with no top gear or valve train movment. Put an old used belt on and there is very little movment-maybe 1/2 degree, the same as an old comp. cam unit the jesel unit replaced.
jesel says 3 degrees is normal and i could send the belt to them to measure. I bought a new belt and it is the same ( 3 degrees) as the original with 72 runs.
The questions are why would there be a difference and would it effect valve timing and or performance.
jim johnston ss/oa

05-16-2016, 12:54 AM	#1
Jim Johnston/6022 Junior Member Join Date: Oct 2011 Location: delta bc-down river from mission raceway Posts: 37 Likes: 0 Liked 13 Times in 6 Posts	jesel belt drive question I am able to move crank 3 degrees back and forth with no top gear or valve train movment. Put an old used belt on and there is very little movment-maybe 1/2 degree, the same as an old comp. cam unit the jesel unit replaced. jesel says 3 degrees is normal and i could send the belt to them to measure. I bought a new belt and it is the same ( 3 degrees) as the original with 72 runs. The questions are why would there be a difference and would it effect valve timing and or performance. jim johnston ss/oa