gotta know when to quit

i did everything i know, heat, impact driver even drilled a hole behind the bolt
to get Kroil in there. Nothing, i give, it's staying on
but i didn't snap it off so i guess i'll call it a draw 7 out of 8 ain't bad

 

vice grips tighten then loosen and repeat should start moving eventualy. dont reem on it just apply pressure one way then the other

 

Replace the entire head, that's the easiest way.......

 

maybe i'll try packing black powder in the cavity behind the bolt, now that i have a hole for a fuse

 

Give that kroil some time to work and give her another shot man. Kroil is like magic, love that stuff.

 

Uhm, if it gets to THAT....


Video please?

 

If you're planning to replace the boot, the one other thing I can think of is to weld a piece of bar iron, or a sacrifice allen key, to the bolt to use as a lever... you'd probably then need to cut the bar off after a half-turn or so, since there doesn't look to be clearance to rotate it 360 degrees.

As an added benefit, the heat of the welding would help break the bolt loose.

 

the boot is actually in good shape but the engine is going to see a lot of stripper and harsh chemicals as soon as it warms up a bit, and i thought if i could get them off all the better
i guess that one is just going to get taped up real good
the cavity behind the bolt is full of Kroil and it sat over night
there's really too much mass of aluminum there to heat with a torch and do any good
i'll just give it a few smacks with the impact driver every day and see what happens

 

I'm voting big time for the black powder/fuse option. Recommendation? Use lots and lots and lots of black powder. Use a long fuse stand back and don't forget to keep that video running!

Good gosh Polock. You made my night!

 

Yep. You need a lot of heat fast.

Black powder will do that :twisted:

 

someone once mentioned using a drill with the clutch set to slip a bit and just let it hammer on the screw for a while... like a mini-impact.

black powder sounds fun though!

 

make sure you have a beer visible in your hand, then post to you tube!

seriously though, it's weird she didn't come out. They are usually good about that

 

no retreat no surrender! seriously man on things like this i get out the breaker bar and put slow gentle pressure on it and use somthing to hold it in place. tap the tool in lightly with the ball pin hammer. then increase the pressure and repeat. periodically try to tighten a little then loosen.

you could do the same with a pen torch if needed.

 

Bring it to my house on Saturday or Sunday afternoon . We'll get it out!

I gots big tools! :twisted:

 

heat is your friend

throw some heat on the head where the bolt is

 

i would grind the head off the bolt, remove the boot, and take it to a GOOD welder. They can use a special welding rod to weld a nut to it that will heat up the stuck bolt enough to almost liquify it, only for a fraction of a second. The flux from the rod cools faster than the steel does and creates a "straw" of sorts and as the steel expends it has nowhere to go but into the straw. as the steel cools, it contracts. Some of the steel will stay in the "straw" thus making the bolt slightly smaller in diameter than it was before. This pulls it inward, away from the threads, (by a TINY amount, we're talking 1/1000" or smaller) making it easy to throw a wrench on the nut and turn it right out.