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Attachment test (Read 440 times)
TrevorSchlientz
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Grand Rapids, Michigan, USA
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Attachment test
Jan 28th, 2018 at 4:11pm
 
I took this capture to try and prove that this engine had a worn timing chain. Why can't I see the slop in the timing chain in my capture? I scoped the Cam and Crankshaft position sensors with a sync on #1 ignition. I've measured the correlation between the 2 sensors† in many places along the capture and I always come up with value of 14 degrees. Now, I know I made some assumptions but I believe I should have enough information to see the chain slop if there is any. I don't have any scan data stored. What do you see?
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TrevorSchlientz
Senior Member
Picogroup
***
Offline


I'm an Autonerd

Posts: 124

Grand Rapids, Michigan, USA
Grand Rapids
Michigan
USA

Gender: male
Re: Attachment test
Reply #1 - Jan 28th, 2018 at 4:15pm
 
Here is a zoomed out view. I did a couple throttle snaps figuring I would see the slop between the rising and falling the the engine speed.
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Screencap2.PNG (622 KB | 67 )
Screencap2.PNG
 
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