Cam Chain tensioner adjust

The Rocket maintenance schedule does not specify a time frame for cam chain maintenance. I am only doing this because when I measured the drop in the cam chain tensioner plunger it was maxed out, plus I had not measured the valve clearance since 10 k miles. I am at 103k miles.

I think the cam chain had already stretched to the max, but was still within spec, and could have gone on for several thousand more miles or more. But since I already had it out I figured it might as well be replaced.

Gratitude for that dope, my friend.
Have you found circa 100K to be normal regarding this?
@warp9.9
 
Did mine at 48,000kms (30,000 miles) service... was the first service I carried out on the bike after the warranty had expired... had a cold start rattle with the spacer installed.
I adjusted/changed 10 shims and replaced the cam chain... still rattled so decided to revisit and pull the guides... fixed the rattle and the retarded timing...
 
I don't know what normal is for the Rocket. If, as warp posted above, 70k is the recommended time to change out the cam chain, then I am happy for getting much more than that.
I must admit it was quite q while ago back when no one had reached it. So Triumph might well have a different opinion like with the valve check.
 
I found that the tensioner guide had worn a fairly deep groove where the chain feeds over the guide and onto the exhaust cam sprocket with minimal wear along the length of the guide.
The rubbing guide looked good... that was until I placed it against a brand new one, the original guide had a greater radius to it's arc, as if the tension of the chain combined with numourous heat cycles had "flattened" it out some... before removing it I had noticed that it was loose at the top, could be moved back and forth (in line with the chain... easy to check for with the chain removed) and tapping against the inside of the head... once installed, the new rubbing guide fit firmly snug... might explain the rattle, it was the fix for mine.


im in the process of doing this right now i have the front cover off,checking clutch wear etc,i know the chain tensioner is at max 25mm.can you tell me do i need to remove the cylinder head to get at the chain guides?i cant see up enough to work out how to get the guides out i note there is no upper fixing screws in the diagram.Is it just the bottom bolt and lower it out? any advice would be welcome thanks.
 
You do not have to remove the head to change the guides and chain you will need axcess thru the cam cover. I am amazed your is worn since it is a 09. It should have all the updated components. How many miles are on it?
 
Can you post a picture of the guide tensioner side if the clutch cover is off.


Hi thanks warp.

To be honest im a little pissed off,i bought the bike new in june 2009.now im finding a small lifter piece a slightly worn lifter shaft and the date on some parts is sept 2007...ggggrrrrr. 17555096_1401082313341561_374857115_n.jpg 17555239_1401082326674893_1612954807_n.jpg 17555520_1401082226674903_1546550735_n.jpg 17579979_1401082256674900_22087663_n.jpg 17580134_1401082296674896_938829785_n.jpg 17618897_1401082250008234_1410672928_n.jpg 17619394_1401082276674898_1078377112_n.jpg Its done 38k miles
 
Hi thanks warp.

To be honest im a little pissed off,i bought the bike new in june 2009.now im finding a small lifter piece a slightly worn lifter shaft and the date on some parts is sept 2007...ggggrrrrr. 17555096_1401082313341561_374857115_n.jpg 17555239_1401082326674893_1612954807_n.jpg 17555520_1401082226674903_1546550735_n.jpg 17579979_1401082256674900_22087663_n.jpg 17580134_1401082296674896_938829785_n.jpg 17618897_1401082250008234_1410672928_n.jpg 17619394_1401082276674898_1078377112_n.jpg Its done 38k miles
Nice don't be mad about the lifter piece they had not designed the new one until around 2011. The cam chian guide is the updated one. The lifter shaft is not really that bad for 38000. If I work on mine today I'll show you some mucked up pieces.
 
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