Timing jumped, possible damage.
Timing jumped, possible damage.
All right everyone looking for some advice.
I am looking at a 99 that needs some valves replaced.
After questioning the current owner it sounds like the cam timing jumped. I know about the CCT issues and suspect that is what happened. The current owner was told it would cost $1500 to fix it.
I am fully capable of fixing this myself and am not the least bit afraid of the job.
Now for my questions. What is the normal damage when this happens? I know the valves but do the guides get damaged? What about the piston? Does it get ruined by the valves? Does the rod ever get damaged?
I do not have the bike so I am trying to get these answers to decide if it is worth it and how much I should offer.
Thanks for the help.
I am looking at a 99 that needs some valves replaced.
After questioning the current owner it sounds like the cam timing jumped. I know about the CCT issues and suspect that is what happened. The current owner was told it would cost $1500 to fix it.
I am fully capable of fixing this myself and am not the least bit afraid of the job.
Now for my questions. What is the normal damage when this happens? I know the valves but do the guides get damaged? What about the piston? Does it get ruined by the valves? Does the rod ever get damaged?
I do not have the bike so I am trying to get these answers to decide if it is worth it and how much I should offer.
Thanks for the help.
Valves in the effected head.
So you’re likely to need, 4 valves, valve seals, 4 sets of cotters, ,, me Id replace the springs as well.
Then a head gasket, set of MCCT’s, coolant and oil.
It’s possible a valve guide can be damaged when the valve is bent, and if the timing caused a valve / piston crash at higher RPM, the piston can be damaged as well.
If I were bidding on a used bike having this issue.. I would assume the worst, and price the bike accordingly
So you’re likely to need, 4 valves, valve seals, 4 sets of cotters, ,, me Id replace the springs as well.
Then a head gasket, set of MCCT’s, coolant and oil.
It’s possible a valve guide can be damaged when the valve is bent, and if the timing caused a valve / piston crash at higher RPM, the piston can be damaged as well.
If I were bidding on a used bike having this issue.. I would assume the worst, and price the bike accordingly
See if you can locate a second-hand (front?) head and transplant that on.
FRONT CYLINDER HEAD COMPLETE
FRONT CYLINDER HEAD COMPLETE
Depending on how bad the damage is to the pistons, you might want to replace them as well. It can create a pressure spot in the piston, as well as a place for a crack to start from, and well, I'm sure you can imagine the damage when a piston comes apart at 9500rpm.
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