so my brother did his first oil change and went overboard on the tightening up of what we thought was the oil drain plug and stripped it. through ninjette.org we are told this is in fact something to do with the crankcase which is dumb because it is the bolt directly beside the oil filter. anyway, my neighbour is a car mechanic, and says its not a big deal and that he can helicoil it and we will be ok. but my brother is still freaking out and depressed so i was wondering if there is anyone in/around brampton who knows bikes (2009 ninja 250r) and would like to come have a look? from what i understand is we helicoil it and we will be fine but it never hurts to get a second opinion. and yes my brother is real it wasnt me
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ninja 250r stripped crankcase help please
- Thread starter smackenz
- Start date
PLau
Well-known member
Lol... I did that on my first oil change last year 
If you can get someone to rethread the stripped threading, go right ahead. For me, I just went to my regular guy at Speedworx (Racer5) in Markham to do it. Its a stupid mistake and its one that you'll surely learn from.
I had a drip of oil coming out every couple mins so I had to get it fixed as soon as I could... I just tightened it as much as I could without having the bolt jump back, made sure my oil level was at a decent level, duct taped the bolt to hold it in temporarily and rode to the shop with my bro following behind me in his car.
If you can get someone to rethread the stripped threading, go right ahead. For me, I just went to my regular guy at Speedworx (Racer5) in Markham to do it. Its a stupid mistake and its one that you'll surely learn from.
I had a drip of oil coming out every couple mins so I had to get it fixed as soon as I could... I just tightened it as much as I could without having the bolt jump back, made sure my oil level was at a decent level, duct taped the bolt to hold it in temporarily and rode to the shop with my bro following behind me in his car.
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Another option is to replace the part that the oil drain plug sits in . It can be easily replaced. Just take a look at it. If I recall correctly it's a simple bolt on part. Just go to a dealer an order the part. This way you won't have to worry about the drain plug in the future. I,m not sure if you helicoil the plug if you can still use the standard crush washers in the future or if you can easily find the new size.
Read the post! He did not strip the oil drain bolt, he stripped another one beside the filter that threads directly into the lower crankcase
First off I did read the post!!!
If he stripped one of the bolts next to the oil drain plug. Then it is a part that can be easily replaced.
This is where the oil screen is located and can be serviced. If on the other hand he stripped the bolt next to the oil filter bolt. Then that is connected to the lower crankcase as you noted.
If he stripped one of the bolts next to the oil drain plug. Then it is a part that can be easily replaced.
This is where the oil screen is located and can be serviced. If on the other hand he stripped the bolt next to the oil filter bolt. Then that is connected to the lower crankcase as you noted.
Well your not understanding his post then, that part you are showing bolts to the crack case. So if even if he did strip one of those 6mm bolts, replacing that part will do nothing as the treads that hold it on are in the crankcase not the part...
The "oil filter" is the round part with the bolt in the middle, the bolt that he described as being right beside it is most likely the one in the crankcase with the blue mark on it
So once again replacing that part you are describing will do nothing for him.....Read the post clearly and it states beside the oil filter, not oil screen or drain bolt...
If he stipped the oil drain bolt on the finned cover, then you are correct he can simply change the cover, but that is not now I read his post...As he stated "directly beside the oil filter"
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Well your not understanding his post then, that part you are showing bolts to the crack case. So if even if he did strip one of those 6mm bolts, replacing that part will do nothing as the treads that hold it on are in the crankcase not the part...
The "oil filter" is the round part with the bolt in the middle, the bolt that he described as being right beside it is most likely the one in the crankcase with the blue mark on it
So once again replacing that part you are describing will do nothing for him.....Read the post clearly and it states beside the oil filter, not oil screen or drain bolt...
If he stipped the oil drain bolt on the finned cover, then you are correct he can simply change the cover, but that is not now I read his post...As he stated "directly beside the oil filter"
you sir are correct, it is the one beside the oil filter marked with blue, anyone know what this is really for? and still just helicoil it?
I believe it is still called an oil plug, however I believe it was the old location. The new one is on the finned cover, and even if that bolt you stripped will drain oil you would want to use the one on the finned cover anyways as its lower and would drain more oil...The other would allow some oil to remain in the finned cover..
Personally I do not like heli coils, Ive had problems with them sealing properly, or coming out with the bolt later on....I prefer other brands of solid threaded inserts for this situation...You also have the option of tapping to a larger size and using a larger size bolt...As there is quite a bit of meat around that bolt hole
Go one size larger as Johnny has said, also sometimes there will be an imperial size just slightly larger you can tap the hole to without drilling. Pour some new oil (a couple of liters, just pour it in the regular filler hole after tapping)through after you are done to flush out any chips you get in there. Canadian tire has crush washers and oil drain plugs as well.
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and if we are able to get it all plugged up nice, is there any reason we would have to take out this bolt? i now understand where the proper oil drain is so i wont use this one for oil change, but do we need to take out this bolt for any service or anything? i ask because johnnys saying he doesnt like them as they might screw up when taking out the bolt. but if we dont need to take out this bolt then its not really a problem
Under normal circumstances no you will probably never have to remove it. It's just a personal preference for me, I'd prefer tapping larger and using the next size bolt first. And if I was going to use a thread repair I'd use a time sert or other solid thread repair over heli coil. I just don't like coils, I e had better results with solid thread repair inserts
ok good, when my brother told the neighbour it was the crankcase he said there is no reason to use a helicoil and that we will just go with the size up bolt cuz it wont need to come in and out
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