Topic: Finned cover bolt holds the filter CB350F Stuck ruzzn..tuzzn..dam and blast

[bonnietiler]

Ok...I'm at the finned oil filter cover and the bolt which secures it...been on it all day I started with a rounded 12mm nut/bolt which filed to a nice snug 11mm size..no...nothing..I'm down to a 10mm bolt now I've put some heat on it ive put a mole on it (previous sizes) Is there a trick to getting this blasted cover off Or do I smash it off and buy another!
Any help much appreciated

[flybox1]

get a breaker bar on your wrench and give the bolt head a few taps with a hammer to break it free.
weld a nut to it and turn the nut.
cut /drill it off in a way that it does not ruin the filter housing....get another filter bolt.

[ekpent]

Worst case scenerio is you could cut the head of the bolt off. I would not start smashing anything,don't want to break the inner case. Usually its the flange on the bolt stuck to the filter case not the threads inside the housing.

[jamesv220820]

you would be amazed how many of us cb350f owners have had problems with the silly bolt!  my old one was awful! When I bought a new one to replace it, it seemed like the build quality was much better then the original one.

keep at it!

[Don R]

 If you have access to a welder of any sort the welded nut works wonders.  Not if your engine has any gas inside of it though, leaky carbs etc.

[Thamuz]

had the same issue when I first got my cb550f.  I ended up using the dremel to cut off a lot of the edges.  No amount of heat, hammering, or cursing got it off. It is steel into aluminum so it gets a small bond going. 

If you do cut the head off, be carful. 

[bjbuchanan]

Buzz the head off and replace with a new one. Plus side with the new is that it isn't mangled, has an oversized head for better leverage and now YOU get to learn how to not overtighten a bolt regardless of whatever a PO has done