What is wrong with my CBR600RR?
I have a 2003 CBR600RR that I bought used about a month ago. It recently began making a weird noise, and it was coming from inside the motor. Its my only transportation, so Im forced to ride when shouldn’t. I was on the highway today, and the noise suddenly became louder. All of a sudden, the bike gave out, and began to shoot oil out from the bottom of the motor. The bike doesnt crank right now. Does anyone know if the engine is badly damaged. I paid ,000 for the bike, and If Honda charges me too much, I dont think it will be worth fixing it. If the engine is gone, then I could use that 5 grand to buy a newer better used bike, but this time I will inspect it better. Does anyone know what has happened? Does my bike still have a chance without having to pay a rediculous price. I dont want to pay the same value for a part, that costed me for the whole bike itself. Please let me know if you have any ideas of what has happened, and if I should just sell it cheap and buy another bike. Does my bike still have a chance???
Okay, with the information you have given – this is my diagnosis:
The noise was a knocking sound perhaps and it grew louder. There are several possibilities, but the most common is a thrown connecting rod and spun main bearings. The bike was flawed when you bought it. It is possible the bike did not have enough oil, but not likely. The previous owner could have already heard the knocking and masked it by using a heavier weight oil and selling it off before anything could happen. The thick oil became thin and the connecting rod overheated. The rod broke and went through the bottom of the crankcase. There is also the possibility that the noise you heard was from a failing cam chain tensioner. No one could have known, but you didn’t know what it was and did not have it checked out. It got louder because it stretched and finally broke. Upon the cam chain failing, you might have dropped valves and hit pistons, also causing severe engine failure. Cam chain might have broke out of the case. Any good mechanic will be able to tell you within one hour what exactly happened. See if you can get a shop to charge you one hour of labor just to break the motor down and tell you what’s wrong. You should be able to get an estimate also. In my opinion, the best thing to do is find a used motor and just replace it. Crankcases are expensive, parts are expensive, and labor is expensive. You can swap a motor for probably 30% of getting yours fixed. I’ve done it many times on many bikes. I’ve also seen many blown motors.
Well, to be completely honest with you pablo, u coulda had a real nice moostang!!! lol
There is a chance that the bike was in an accident and was just fixed up. If oil is spewing out then i say just trade it in for a new bike. Sooner or later your wheels will fall off, smoke will be coming out of the engine, and youll injure yourself. Take it easy with the sport bikes. dont ride too fast cuase i learned the hard way. My advice trade it in.
This will sound silly, but have you checked the oil level? There should be a transparent window at the lower edges of the crankcase, and you’ll need to measure it on even ground and upright (that means holding the bike upright, not on the sidestand)
"shooting oil" from the bottom of the motor…is hard to diagnose.
Did it come from the oil pan drain screw? Did it come from the seal around the oil filter? Did the oil cooler piping spring a leak? Are there any gaskets around the crankcase or cylinder heads that you see oil leaking out of? Your comment is not very specific about it. The engine is full of oil but it can leak out a good many places and this means different things.
Typically, bikes are not that cheap to fix, especially as they become more complex.
Sounds like your piston and cylinder wall might have became warped and melted the rings.. pretty much you need new pistons new rings and new cylinder wall. one thing you may look into is a bore kit. having them bore the cylinder (enough to shave off and blemishes) and get a bigger piston and new rings.. a lot of these kits also come with a cam so you could make your bike quite of bit faster. but then again a new bike may be easier.
Take it to the garage mate.
let them sort it out.
I agree with sign pimp, I’d also suspect a failed camchain tesioner, roller or guide caused a catastrophic failure or rod and or main bearings. I seriously doubt the oil plug or filter sprung a leak because your rear tire would have been bathed in oil and you would have been in the ditch. If the previous owner was fond of doing wheelies and stoppies, just know that there were a few bikes that didn’t like such antics. When the bike was on one wheel, the crankcase oil would drain forward or backwards and the oil pump would suck air. Sucking air means no oil delivered to the bearings. No oil may not result in immediate failure, but the bearings are galled resulting in more clearance. The more clearance, the shorter period of time the bearing can be run without oil being delivered. Doing this repeatedly would eventually result in severely galled bearings with too much clearance resulting in an inadequate volume of oil being delivered to the top end. so, the main, rod and camshaft bearings may all be ruined as well as a connecting rod having poked a hole in the crankcase.
Not sure at all, but I thought there was some Honda sportbike that was particularly sensitive to such foolish stunting. It may just happen to be your model of bike.