well if there's not enough tension you get the rattling...but in all instances i've come across with the F4i, the rattling was from the cctl itself and not the cam chain.

 

Thanks for the advice, though I didn't mention anything about anything failing?? All good though.

 

ok, now im a bit confused...if the CCT doesn't fail, then why do people change it so it doesnt cause the cams to jump timing causing the valves to hit the pistons?

 

i have a headache now...i think you should read this thread from the very beginning.
i have arthritis from typing the cctl thing too many times..

(_!_)

 

hi, smart *** i did read; and in one of the many links provided was this:

The name is a bit of a misnomer as the problem actually exists in the Cam Chain Tensioner Lifter (CCTL) assembly (4). The CCTL assembly applies constant pressure to the Cam Chain Tensioner (3). There is a spring inside the lifter assembly that causes the tension on the cam chain (2). The problem lies in the spring inside the lifter assembly. The lifter assembly is not a serviceable item - the whole unit must be replaced. The noise that is heard is the cam chain slapping around inside the motor (between the cam chain tensioner and the cam chain guide (7)) since there isn't enough pressure being applied to it. If the problem persists, there is a possibility that the cam chain could jump on the cam gears which could cause the motor to be running out of timing which, in turn, could result in catastrophic failure. The Cam Chain turns the cams at the most opportune time to open and close the valves. If the chain jumps, a valve could be open while the piston is coming up to top dead center which would result in damaged pistons and bent valves. I have never heard of this happening, but, in theory, it could.

again, so how couldn't it fail?

 

buahahhaah i chapped your hide mang! buauauahhaha...
ok down to business.
cctl puts 'some' tension on the cam chain. if you take off the top of the motor to get a better look, without the cctl, the cam chain is still very tight.

now...the dude that you got that post from thinks that it's the spring being too loose in the cctl. could be, but what i've found out and many others have found out, is that there is a pin inside the cctl assembly that over time gets loose. what happens is that it allows the head of the cctl, which comes in contact with the cam chain, to move around...not forward/backward for side to side. this is the rattling. how do we know this? cause when we squished the edges of the pin so that it doesn't allow the shaft of the cctl to move, then no more sound! now another person said that even when he did this mod, he still heard noises, so he put an extra 4 turns on the existing spring. to me this is overkill as i don't think it was too lose to begin with.

does this make sense now?

it'll fail IF AND ONLY IF the culprit is a loose spring. i won't fail if the culprit is the shaft moving around, which is what is happening the vast majority of the time.

 

thank you.

im just worried about destroying an engine after i just paid over 4k for a bike...

 

hey i'll set mah craziness aside and tell you this.

I don't know of any F4i's that have had cctl fail on it. I know of one that had an entire engine get thrashed because the APE was too tight.
I know of 1 F4i that had serious engine problems with symptoms that couldn't be traced back to the cctl but the dealer decided to blame the cctl...saying it failed...the bike had 50 miles on it.

i know of 1 RC-51 that had the cctl fail totally and the cam chain jumped. I know of 1 person who had an APE back thread out on his bike...and he got rattling noise but nothing happened.

hope you feel better now.

 

What a crazy thread


Tahoe = CCTL god

we all bow down

 

buhhhahaha...by no means mang...i've learned from this other dude...'uncle jeff'...but it's not one of those nasty gross pedophile uncle relationships aight? aight.