APE tensioner adjustment??? - K-Bikes.com - Excellence in Motion
 
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post #1 of 3 (permalink) Old Jul 18th, 2012, 1:12 pm Thread Starter
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Question APE tensioner adjustment???

OK I just ordered my APE camchain tensioner.

I have read and copied the install process (thank you) but what I am still unclear of is the adjustment.

What kind of 'feel' will I have when tightening it?
It was said that rotating the wheel while in 6th gear turns the engine enough to 'feel' the chain with the tensioner.
Is this the way to go, or.....?????

Thanks guys.

Mike
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post #2 of 3 (permalink) Old Jul 18th, 2012, 3:15 pm
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Here is what I did (from my original thread pasted below)
APE's in depth instructions :

INSTRUCTIONS

To set the tensioner adjustment, rotate the engine forward while screwing the tensioner bolt in. When you feel the engine tensioner parts (guide, rollers, etc.) make contact with the moving cam chain, back the tensioner bolt out 1/4 turn and tighten the jam nut.

DO NOT over-tighten the cam chain, as cam chain giude damage could occur. Be sure jam nut is tight against the tensioner body when complete.



APE says to "rotate" the engine until you feel the moving chain against the tensioner... There was no way I was going to crank nor start the motor up with zero tension at all on it, not to mention it takes some time to run the screw down with a hex key due to the limited space. Which could be disastrous trying to run it down quickly with the chain slapping away. I had my son rotate the rear wheel while in 6th gear (it's hard, so he had to use short hard strokes) There was a point when I definately felt the movement of the chain against the guard that the tensioner presses against. I figured (correctly apparently) that it was a good start point. I got it to that point and fired it up. That's when it still made a little but noticeable noise. It didn;t take much at all after reaching that point to silence it.


Original post : http://www.k-bikes.com/forums/showthread.php?t=25399

You will definately feel when the APE has good contact with the rail that is pressing upon the (moving) chain. What you want is more than just a "light" feel. You want it so you can definately feel the links when they first strike the rail. From that point fire it up and go by ear.


.

Last edited by moymurfs; Jul 18th, 2012 at 3:28 pm.
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post #3 of 3 (permalink) Old Jul 31st, 2012, 7:17 pm
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I wasn't able to get a good feel for when the tensioner hit the guide when I installed mine.

On the right side of the engine down by the crank is a small plug that can be removed with a T60. This allows you to get a wrench on the crank to turn the engine over and you can see the cam chain on the crank gear. By slightly rocking the crank with a wrench, you can see the slack between the cam chain and the crank gear (this is where it skips a tooth if too loose). It's very easy to get a good adjustment by watching that slack and rocking the engine back and forth.

I think Gmack mentioned this earlier, the threads on the adjuster are course enough that very little adjustment can make a big difference in the slack. This is very noticeable when you're watching it.

James

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