front cct down....

[junak]

Hi.
I just got my new baby vtr 99reg 24k on a clock.
There is a problem with the cct wich spring broke.
I bought like that.
I replaced but looks like the camshaft it's changed now and I can't turn the engine. When I know if the valves been bend?
Cheers for the answer.

[edds11]

you have only had it one day and its got 2 years newer and broke a cct....not your day is it.

[VTRDark]

I'm guessing it's the front cylinder. You will have to remove the front cam cover and check the marks on the cam sprocket. But there is a good chance that a couple of valves are bent. You may get lucky and be OK if it's only slipped a couple of teeth on the cam sprockets.

Set the front cylinder to TDC on the compression stroke so both cam lobes will be pointing upwards and outwards. The marks on the cam sprockets will be FI and FE on the outside of the sprockets and should line horizontally with the top of the cylinder head.

Follow the instructions for timing on this site and don't try to start the engine until you have confirmed if the timing is correct or not.

Some links regarding the Cam Chain Tensioners (CCT's)

You can either go for the stop mod http://www.vtr1000.org/phpBB3/viewtopic ... 31&t=19416
Which is the Honda auto CCT's that are converted to a fail safe. So when it does fail, it don't send the valves crashing.

Or

You go for the full manual conversion, your options are here
http://www.vtr1000.org/phpBB3/viewtopic ... 16&t=22720

Then with regards to fitting View Topic
http://www.vtr1000.org/phpBB3/viewtopic.php?f=31&t=8326

(:-})

[tony.mon]

To find out without taking the front head off, remove the fairing and front cam cover, then see what you can see.
Follow the instructions in Workshop CCT thread to set the cam timing correctly, then measure the front valve clearances.

If there are very large gaps, especially on the exhaust valves, then it's likely that the valves are bent and you need to take the head off.

[junak]

Marks are absolutely not right in front cylinder. I take everything off already but I wasn't sure how it's should be on a tdc. I did find now from forum I did manage download the manual. Thanks for that.
I just don't know if the valves are bend.
Timing is wrong because I couldn't turn the engine.
And the velve clearance are to big in a front cylinder.
Tomorrow morning I will put camshafts in order, but I've just got bad feeling about that valves
But start.
I thought it's was only a cct to to change

[VTRDark]

I take everything off already but I wasn't sure how it's should be on a tdc

If your at TDC on the compression stroke then the crank at the generator cover will be on FT and the cam lobes for the front cylinder will pointing upwards and outwards. To measure the valve clearances you need to be at TDC on the compression stroke and the cam sprockets should be aligned with the FI and FE marks. If you can not manually turn the crank over then there must be some valves in the way so don't try to force it. by the sounds of it, it's not sounding good. You may have to remove the front cylinder head to confirm any damage and replace a couple of valves. Either that or get a 2nd hand cylinder head and put that on. If you can move the camshafts back into position with the piston at tdc check you valve clearances again.

(:-})

[junak]

I turned engine till intake front stopped. When I take cct off it's jumped fwe times and turn again. I know which marks are correct now. I'll try tomorrow and I'll be back. I found fwe cheap heads but rear ones. Just wander what is the difference between front and rear.

[VTRDark]

Just wander what is the difference between front and rear.

As far as I know there is no difference accept the hole for the cct is on the opposite side. You will see the blank in the casting on the opposite side. So they are not really interchangeable as you would have to drill out the blank in the casting and then find a way of blocking off the opposite side.

If you remove a CCT while the cylinder is not set to TDC on the compression stroke then this will cause the chain to jump as it is under tension. The reason for setting it to TDC on the compression stroke is that the chain is at it's slackest point.

(:-})

[junak]

Definitely exhaust valves are bend.
I need wait for some new velves and head gasket. Need some shims as well. Rear cylinder have exhaust ones and one intake to clearance.
It's look like big project to do. I wasn't expecting that.
Never mind.

[VTRDark]

That's unfortunate. Be positive and think of the end result when you will get to ride it.

(:-})

[Wicky]

Sorting it and fitting manual CCTs will give you peace of mind and many joyful future worry free miles ....

[junak]

Sorting it and fitting manual CCTs will give you peace of mind and many joyful future worry free miles ....

I Was thinking about this yesterday. I've got r1 and zzr11 as well. Zzr got brand new cct but r1 don't know. Stupid cct down and such a mess in an engin
Do you know any manual cct in UK? I found couple in USA but I don't know how much will be custom fee.
Cheers every one for the answers. First time I found such a good and friendly forum.

[Wicky]

Contact bazza - remember to send him back your old ones

Kreiger, APE and Bazza CCT's > http://www.vtr1000.org/phpBB3/viewtopic ... 16&t=22720

[darkember]

I take everything off already but I wasn't sure how it's should be on a tdc

If your at TDC on the compression stroke then the crank at the generator cover will be on FT and the cam lobes for the front cylinder will pointing upwards and outwards. To measure the valve clearances you need to be at TDC on the compression stroke and the cam sprockets should be aligned with the FI and FE marks. If you can not manually turn the crank over then there must be some valves in the way so don't try to force it. by the sounds of it, it's not sounding good. You may have to remove the front cylinder head to confirm any damage and replace a couple of valves. Either that or get a 2nd hand cylinder head and put that on. If you can move the camshafts back into position with the piston at tdc check you valve clearances again.

(:-})

Just to clarify the above to check valve clearances. Are the 2 statements below correct

For the front cylinder TDC on compression. The lobes will be pointing upwards & away from each other. The FT mark will be aligned in the timing orifice. The FE & FI marks will be flush with the cylinder head top opposed & on the outer edge of the cylinder head.

For the rear cylinder TDC on compression. The lobes will be pointing upwards & towards each other. The RT mark will be aligned in the timing orifice. The RE & RI marks will be flush with the cylinder head top opposed & on the outer edge of the cylinder head.

Once the above statements are achieved both the Inlet & exhaust valve clearances can be checked. Is this the same point at which the 7mm play in the cam chain can be verified as well??

[VTRDark]

Yes that is all correct, You got it spot on. And just to add to that, take the spark plugs out as it takes a bit of compression out of the cylinder so it's easier to turn and only turn the engine over at the crank in an anticlockwise direction. If you miss the mark then continue around again until it all lines up and cam lobes pointing in the right direction.

(:-})