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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Thanks in advance for any input here. I think I may have botched my cam chain tensioner/Andrews 21 cam swap. I followed a few Harley stock videos to do the work and I believe I've left out a spacer on the sprocket cam. I didn't realize the Andrews cams came with instructions and after seeing the diagram they show a .055 inner spacer that the stock cam didn't have(as best I can remember). I assume I have to pull everything apart and add this spacer? I'm kicking myself right now!
Thanks in advance for any input here. I think I may have botched my cam chain tensioner/Andrews 21 cam swap. I followed a few Harley stock videos to do the work and I believe I've left out a spacer on the sprocket cam. I didn't realize the Andrews cams came with instructions and after seeing the diagram they show a .055 inner spacer that the stock cam didn't have(as best I can remember). I assume I have to pull everything apart and add this spacer? I'm kicking myself right now!
Yes, you should go back in and check. The spacer on the rear cam is used to align the rear cam sprocket with the pinion sprocket; they should be in the same plane or very near. You will need to use a straight edge to see if/what how much the rear cam sprocket needs to move outboard to align and that is the shim thickness you need. The dealer as them from .100" to .150" in .010" increments.
Guys thanks for the help. I did use the bigger spacer to align the sprockets so I'm ok there. In the Andrews diagram they show a spacer on the engine side of the bearing. They included a flat spacer (looks like a washer). That flat spacer is too small to fit behind the bearing though. I think I'm ok. I may call Andrews and speak to a tech rep.
No mark. I have that spacer in place and sprockets are aligned. The one I'm referring to is not on the factory diagram but is provided from Andrews. The andrews diagram seems to indicate a .055 spacer on the inboard side of the bearing. The small spacer that they provide won't fit there so I'm pretty confident that I'm ok there. I wonder if it goes under the snap ring on the other cam? The original did not have a washer there.
I think the spacer he is discussing is shown in the parts breakdown.. It's the inside part shown with the bearing (#5).. If the bearing sleeve was pressed in place without the spacer, the rear cam will be positioned to bind the inner cam chain. There should also be an O ring that slides over the splines and into a groove to help position the inner spacer.
Max my original set up on my 02 is different from the diagram mark kindly shared. The way it came apart on the splined cam was roller bearing, spacer, sprocket. The washer or spacer in question is the same diameter as the thicker spacer. This would limit it to either outboard side of the bearing on the splined cam or the outboard side of the other cam. Possibly under the snap ring? The oem setup did not have a washer under the snap ring. The snapring went right against the bearing.
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