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trebbien -> Original CCT modification. (5/16/2008 9:51:01 AM)
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I have been reading this forum every day for the last 1½ year, and learned a lot of the good and bad things about being an owner of a F2. Mine is a 92 with 60.000 km. I have had it for 2 years and have done almost 12.000 on it already. It’s my fist bike and I love it.
A lot of threads have been on the CCT, and all swear to the manual CCT tension version. But it is still $50.
The other day, I took off the F2 standard CCT and too it apart. Unfortunately I did not take any photos. Maybe another day or if anyone want to try out the following they will get some “cheap” forum “points”… [8D].
Getting access is easy and is described many places her on the forum. Look that up yourselves
Taking apart the CCT is also easy, as a clip is holding the two pieces together. The flange part must hold downwards. The other part is the piston part which is spring loaded. Before removing the spring hold the two parts together between two fingers. Remove the spring and you can gently take the two parts apart.
I have read that some drag the spring to make it longer. That will remove the rattle noise for some time, but will very likely come back as the spring will find back to its original length. Dragging too much in the spring you will destroy it.
For obtaining more spring force I have instead stacked 2 hex nuts and a thin spacer on top. The spacer is for making a proper mechanical surface towards the spring end. The hex nut’s is for compressing the spring inside the CCT. The piston will then in default position have more tension onto the CCT chain tension device.
Put back the piston, and press the parts together and install the spring.
I installed the CCT and it was a horrible noise. But as the oil pressure was build up all my rattle noise was gone. I started by adding one hex nut, but that was not enough.
The nice thing about this is that the CCT is still spring loaded which is the original idea. Should be almost idiot proof if you go easy and not start to stack a lot of spacers or hex nuts.
On my second attempt (installing the second hex nut), I by mistake removed the spring inside the CCT. With this followed a small vent system with a very, very small spring and a ball. This will secure the oil not running back when going up and down in RPM. It was a bit tricky to get these parts in place again so stay alert to this.
I have now been running a few days with this modification, and it is a completely different machine. Very quick throttle response, and the gearshift is much better as the engine is not loosing power on the chain slag.
I hope someone can use this idea. Plese tell me your thoughts.
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