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My B*tch of a day
Thought i'd share my day as it was full of ups and downs....
Started off with a ride back from London to Milton Keynes. Sun was shining (a bit cold) and it was a fantastic ride. Got home and thought i'd check my plugs as i have only recently replaced them and i tend to not do them tight. Brought on by the other post about plugs blowing out. I started on the rear cylinder first. Backed the plug off and grabbed a torque wrench and started tightening. SNAP and many bad words.:reaper: The plug sheared off leaving the thread in a head. Luckily not stripping the thread. I started stripping the tank off etc expecting to strip off the head and inspect. Luckily my neighbour had an easy out. I covered it in grease (to attract any swarf) and gently started turning not expecting much. IT CAME OUT!! Tomorrows job is to get new plugs and fit it all back together. I used NGK plugs and they have an extremely thin side wall (between thread and main body). I guess i should be grateful that they werent thick as it could off stripped the thread....Im not sure what went wrong. Maybe the torque wrench is out? faulty plug? Word of warning to other newbies like me... Take it easy on plugs as they can cause hell :D |
Re: My B*tch of a day
Don't use a torque wrench on spark plugs.
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Re: My B*tch of a day
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Re: My B*tch of a day
I guess the rule is by hand until you feel the washer then 1/4 to 1/2 a turn?
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Re: My B*tch of a day
I have always done 1/4 turn on new plugs, 1/2 turn on already crushed washers.
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Re: My B*tch of a day
It's only like 10 or 11nm for the plugs isn't it? I use a torque wrench and haven't had any problems. Maybe you had a dodgy plug?
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Re: My B*tch of a day
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NGK say 1/2 turn of crush for new ones, so that's what I do. For ones previously fitted just nip them. |
Re: My B*tch of a day
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Re: My B*tch of a day
When I started messing about with bikes aged 14 someone told me to do that, so I did. They were very mechanically able in my eyes back then, so I never really given it much thought.
Back then the £50 heap of scrap metal bikes we rode needed repairing every single day lol, and never snapped a plug like this. When I changed the SV plugs I did 1/4 turn iirc. That was the first time I'd touched plugs in over 10 years! Of course, that doesnt mean it's right, and juding by your post it most proably isnt :D |
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