UCF Eric

I changed the CCT's on the Hawk today with APE MCCT's and follow the steps that were outlined here:

https://dl.dropboxusercontent.com/u/219618/cctwt.pdf

I got it put back together and it's making some awful noises. I wondered if the chains were too tight, I loosened them and it didn't seem to make a difference. I'm afraid the front timing jumped and that the motor is

Link to video:
https://www.youtube.com/watch?v=lLSqhfOezNo

Help?

scottiemann

did you zip tie the gears? did you make sure to ONLY rotate the engine with tensioners installed?

scottiemann

almost sounds like your way off timing but the audio isnt the best... is your exhaust installed during the video? almost sounds like open headers as well

UCF Eric

Exhaust is installed, mufflers as well.

I zipties the rear cams and chains when I replaced the rear. I wasn't able to get the front valve cover off with all the radiators in the way. The FT mark was lined up with the timing hole and I never heard the infamous "click" people talk about when the chain jumps.

8541Hawk

I can never understand how people can do this job but not remove the front valve cover.

It just doesn't make sense to want to save less than an hour of your time while risking so much damage if things go wrong.

Hope you get it sorted.

scottiemann

yea sounds like its out of time... time for you to take off both valve covers and check timing.

the way I adjust is to make sure the cylinder is at TDC compression, finger tight adjuster bolt and verifying that it is actually pressing on the chain gaurd (not just getting hung up on a thread), then back out the adjuster bolt about 1/4"-1/2"(forget what i did exactly last time) and lock it down... then the other cylinder

I always use zipties for this procedure, getting it right on TDC is easier with spark plugs removed, and I dont have the manual on me at the moment but theres a certain amount of degrees you need to turn the engine before that FT mark is actually on TDC.

CruxGNZ

I sure hope it's not the valves hitting the piston.

Sorry that this happened to you, but I agree with 8541Hawk, you never want to skimp on this type of thing. Before doing this, you must have known about the two different methods, right?

UCF Eric

Two different methods of what? Installing the CCTs?

CruxGNZ

Yes. The "short cut" way, which you used and, what I would call, the normal way. Did you know about any other methods to install CCT's, or was this the first method you found and decided to use it? Just curious is all.

Have you taken the bike back apart to find out what is happening? The thing you avoided is what you will now have to do. You will now have to take the front valve cover off to verify what relation the cams are to the crank and to also see if there was any damage (valves hitting the piston, bent valves).

Sorry this happened to you.

EDIT: I like to point people to this link click here, mainly because it has a lot of great pictures, which helps with us visual learners and also because it just plain works. I have done several bikes CCT's with that write up.

UCF Eric

I did some research and new about the zip tie method, which I did on the rear. The instruction on this forum are no longer there so I used the text and from here and that .pdf link I posted in the original post.

The link to VTR will be helpful, I'm not registered over there, though I do know it exists.

Thank you for the link. Looks like I'm going to pull the cover and retime the motor and do a compression test to see if valves are bent. If so, there might be a part out going on soon.

UCF Eric

So, front valve cover is off. Exhaust is 1 tooth off.

7moore7

One tooth off you'll have no damage. I wouldn't even do a compression test unless it's running weird after it's buttoned up!

zxbud