Can Cam Timing be off from Top Dead Center?

GaryB

.020 Over
Joined
Oct 2, 2015
Messages
12
Location
Chandler, AZ
Ride
2005 Rocket III
I can usually find answers to my issues but this one I can't seem to find anywhere. So here is my first question post.

I have a 2005 Rocket III and the motor is in the frame and I would prefer not to remove the front cover.

My issue is when setting cam timing I can't get all of the chain slack on the adjuster side so after install when I turn the crankshaft the adjuster continues to adjust and then the cams are not aligned with TDC. I have tried several times to turn the crankshaft away from TDC so that when the slack is taken up I am closer to TDC but the below picture is the best I have been able to do. The picture shows where the cams are when at TDC. The cams are aligned to each other but are a little out from TDC.

Is this acceptable?
Any one else had this issue and found a way to solve it?
Is there some trick to getting all the slack on the adjuster side?

Cam Timing Marks at TDC.jpg
 

R-III-R Turbo

Mine is the biggest :)
Joined
Oct 12, 2010
Messages
1,595
Location
Ireland
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2.5L Stroker Rocket III, 04 Hayabusa
As nev says do the tensioner drop and chain length measurements. In the manual, but you can use a calipers instead of the Triumph tool for the drop. 16mm is the limit before spacer is needed.

Also you might have a watch of this, you might spot something useful

 

warp9.9

Pocałuj mnie w dupę
Joined
Jun 10, 2007
Messages
11,066
Location
Forest City Illinois
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07 Rocket
As nev says do the tensioner drop and chain length measurements. In the manual, but you can use a calipers instead of the Triumph tool for the drop. 16mm is the limit before spacer is needed.

Also you might have a watch of this, you might spot something useful

Im sorry to bud in and of course check the tensioner drop. Anyway are you using the timing fixture ? I ask because I do not see it. And going by eye with a straight blade across the head is not the way. Anyway one of the moderators still has my timing fixture. If you want we can get it mailed to you? Then when you're done one you can ship it back to me.
 

GaryB

.020 Over
Joined
Oct 2, 2015
Messages
12
Location
Chandler, AZ
Ride
2005 Rocket III
As nev says do the tensioner drop and chain length measurements. In the manual, but you can use a calipers instead of the Triumph tool for the drop. 16mm is the limit before spacer is needed.

Also you might have a watch of this, you might spot something useful

Thanks for the video it did give me some ideas to try.
 

GaryB

.020 Over
Joined
Oct 2, 2015
Messages
12
Location
Chandler, AZ
Ride
2005 Rocket III
Im sorry to bud in and of course check the tensioner drop. Anyway are you using the timing fixture ? I ask because I do not see it. And going by eye with a straight blade across the head is not the way. Anyway one of the moderators still has my timing fixture. If you want we can get it mailed to you? Then when you're done one you can ship it back to me.
I will do the tensioner drop just to make sure I don't need a spacer. I built my own timing fixture which seems to be working but maybe getting the official tool would be helpful. Who should I contact and give my address to?
 

GaryB

.020 Over
Joined
Oct 2, 2015
Messages
12
Location
Chandler, AZ
Ride
2005 Rocket III
Thanks all for the help. I will hopefully get the checks done tonight and post the results. I also have some things to try since it occurs to me that I am either one tooth off on the crankshaft or the chain is worn out. The bike was running great before adjusting the valve clearances so I don't think the chain or tensioner is the issue but who knows.
 

warp9.9

Pocałuj mnie w dupę
Joined
Jun 10, 2007
Messages
11,066
Location
Forest City Illinois
Ride
07 Rocket
I will do the tensioner drop just to make sure I don't need a spacer. I built my own timing fixture which seems to be working but maybe getting the official tool would be helpful. Who should I contact and give my address to?
Paul aka
@Joesmoe would be the man ! Now that he has been summoned he will pop in before long.
 

breeze

Living Legend
Joined
May 14, 2012
Messages
3,260
Location
bloomfield n.m.
Ride
07 classic/01legend/72 bonne
Thanks all for the help. I will hopefully get the checks done tonight and post the results. I also have some things to try since it occurs to me that I am either one tooth off on the crankshaft or the chain is worn out. The bike was running great before adjusting the valve clearances so I don't think the chain or tensioner is the issue but who knows.[/QUOT Might be on the right track but,I know a whole lot less than warp or the man in the shed,my 07 ran like sh*t after dealer did adjustment ended up taking to Adam&Kyle at 2guyes in Gilbert they made it right ended up being 1 tooth off from dealer in Alb. Adam/Kyle at 2 guyes are very good fair and will earn youre buisiness might check them out
 

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