How to free siezed nut & bolt, NOT GS.

[ELIMINATOR]

I'm trying to get the front engine bolts off the bike, so that I can fit crashbars. Honda CB-1 400 1989,so it's had a long time to corrode

Bolt goes through engine lug, through frame, into nut. Got the nut off one side, bolt rotates, with lots of force, horrible metallic screech during this rotation . I have dribbled ACF50 in the area where the engine meets the frame, in the hope that this penetrates around the bolt & along the hole.
Access to the remaining stuck nut is difficult as the four exhaust pipes are in the way.

The section of frame that the bolt passes through is about 50m long. the engine lug is about 25 thick. I've tried hitting the bolt that I've removed the nut from with my copper mallet & aluminium bar, it doesn't want to budge.
What about heat? although slightly concerned about melting the aluminium lug. I know that heat is supposed to work.
Also tried to shift them with my impact driver. I assume that the R & L refer to release & lock?
No panic to get these nuts & bolts off, if time and dribbling ACF50 will do the job, then that's OK.

Any smart ideas most welcome.

 

[John Armstrong]

Also tried to shift them with my impact driver. I assume that the R & L refer to release & lock?

Might it be L for left and R for right?

Judicious heat will probably be best I'd guess, YMMV.

 

[Phil Reynolds]

Try jacking the engine very slightly, or if the frame downtube is in the way try using a lever between the engine and frame just to give a little 'lift' to the engine. This might free the bolt off enough.


HTH.

Phil

 

[snoopy]

You can try a bit of local heat but if its really screwed then you need to weld a bar to the end of it. This will (generally) always work ... unless the bolt head snaps.

 

[Warthog]

Perhaps if you get an extra pair of hands to rotate the bolt at one end, whilst you give it a know at the other with your mallet and drift?

Also, jacking up the engine as suggested above could well help too.

Good luck. If I were more local, I'd pop round and give you a hand!

 

[Den]

If I knew a nut who had been seized by someone, I would first try to find out the reason why he was seized and by whom.
Once you have determined where the captors and the captive were hiding out, I would use my sas training, and with some fit friends, surprise the captors by shouting loudly and banging large sticks against borrowed dustbin lids.
The assistants used for this purpose would require to be fit as your escape plan, if I remember correctly, is to bolt after freeing the nut.
Remember to replace the borrowed dustbin lids after completing your mission.

This is obviously a friend of yours, so why do you refer to him as a 'nut'. Did he do something stupid which led him into this situation.
If so, I would choose my aquaintances more carefully. It might be you next time.
Remember. Using excessive violence against the captors is against the law

 

[The Slow Granger]

dremell with a flexi end?
.
Or can you get a drill any where near it? if so the smallest pilot hole will let anti seize lube in around the lower end of the thread which might help.