cook.675
Member
Im in the process of adjusting my valves; I put the new shims in and started to put the cams shafts back on
Now when I initially took the cams off, I turned the crank a little more past the "T" to have room to undo the remaining 2 sprocket bolts. When I was reassembling I was having trouble getting the orientation of everything correct and rationalized that I could just start over.
Since the cam chain was off, I turned the sprocket to line up with the "T", then i set both cam shafts in snug in place, with the lobes pointed outwards. Here is a picture of that looking towards cylinder 1:
I put the sprockets on and the chain; and noticed now when I did that the "I-" and "E-" on the sprockets were not exactly lined up with the cylinder casing. They were very close however, when you looked dead on the "I" was a little down inside the casing and the "E" was just above by a little bit. You can see in this picture. Sorry its not parallel but you can see the marks are slightly offset:
I got confused at this point because there was no way to make the dashes line up exactly without rotating the cam shafts which would unseat them or make then unstable. And so I figured that If I put the caps back on and tightened the bolts and tightened the chain that it would probably become flush.
I did all this and it didn't become flush but was still offset. Here is a picture with everything buttoned down. The intake sprocket mark is below but not by much.:
I thought that just a small nudge on the crank sprocket would line them up but it turns out I had to turn it a bit past the "T" mark. These two pictures show the new position of the T that aligns the sprockets:
And finally here is a picture of the Cylinder 1 cam lobes when my crank sprocket "T" is lined up with the crankcase line (and when my cam sprocket lines are slightly off)
So, is this correct? I assume it can not be because the cam sprocket marks are not perfectly aligned. If this is true, is the correct alignment of the cam shafts when I turn the crank past the "T as I have it set to align the sprocket marks, or were the cam shafts seated incorrectly from the get-go and thats why the sprocket marks do not line up?
Sorry this confuses me and gave me a lot of frustration because I tried to align the sprocket marks when I seated the cam shafts and before I put the caps on but I could not. If I turned one, it would be unstable, or one of the ends would come up high out of the groove.
If my cams were seated correctly initially (see picture 1), then the solution is easy right, I would just reseat them exactly as I did and set the crank sprocket "T" an equal distance below where it is now above, so that when I turn it a little the "T" and the sprocket marks will line up.
If the orientation of the cams is not correct could someone help me on where I went wrong and how to set it straight? It was definitly straight when I took it apart!
On an unrelated note, it was both my cylinder 1 exhaust valves that needed adjusting and I rechecked them after putting the shims in and reassembling and they were 10mm too loose
Thanks in advance for all your help!
Now when I initially took the cams off, I turned the crank a little more past the "T" to have room to undo the remaining 2 sprocket bolts. When I was reassembling I was having trouble getting the orientation of everything correct and rationalized that I could just start over.
Since the cam chain was off, I turned the sprocket to line up with the "T", then i set both cam shafts in snug in place, with the lobes pointed outwards. Here is a picture of that looking towards cylinder 1:
I put the sprockets on and the chain; and noticed now when I did that the "I-" and "E-" on the sprockets were not exactly lined up with the cylinder casing. They were very close however, when you looked dead on the "I" was a little down inside the casing and the "E" was just above by a little bit. You can see in this picture. Sorry its not parallel but you can see the marks are slightly offset:
I got confused at this point because there was no way to make the dashes line up exactly without rotating the cam shafts which would unseat them or make then unstable. And so I figured that If I put the caps back on and tightened the bolts and tightened the chain that it would probably become flush.
I did all this and it didn't become flush but was still offset. Here is a picture with everything buttoned down. The intake sprocket mark is below but not by much.:
I thought that just a small nudge on the crank sprocket would line them up but it turns out I had to turn it a bit past the "T" mark. These two pictures show the new position of the T that aligns the sprockets:
And finally here is a picture of the Cylinder 1 cam lobes when my crank sprocket "T" is lined up with the crankcase line (and when my cam sprocket lines are slightly off)
So, is this correct? I assume it can not be because the cam sprocket marks are not perfectly aligned. If this is true, is the correct alignment of the cam shafts when I turn the crank past the "T as I have it set to align the sprocket marks, or were the cam shafts seated incorrectly from the get-go and thats why the sprocket marks do not line up?
Sorry this confuses me and gave me a lot of frustration because I tried to align the sprocket marks when I seated the cam shafts and before I put the caps on but I could not. If I turned one, it would be unstable, or one of the ends would come up high out of the groove.
If my cams were seated correctly initially (see picture 1), then the solution is easy right, I would just reseat them exactly as I did and set the crank sprocket "T" an equal distance below where it is now above, so that when I turn it a little the "T" and the sprocket marks will line up.
If the orientation of the cams is not correct could someone help me on where I went wrong and how to set it straight? It was definitly straight when I took it apart!
On an unrelated note, it was both my cylinder 1 exhaust valves that needed adjusting and I rechecked them after putting the shims in and reassembling and they were 10mm too loose
Thanks in advance for all your help!