Its been my week for stuck bolts boy.
So I am servicing my NV244 transfer case today. I immediately noticed that 1 of the 2 bolts is almost flush with the case. Its a 10mm hex hole. I am pretty sure the transfer case is aluminum not sure about the bolt. I sprayed some Kroil Penetrating Oil and let it sit there for a good 15 minutes and then attempted to get it off. Tried using my breaker bar and the socket no go. Then tried my impact gun go back and forth slowly, no go. Then I tried my air impact gun a few times, nothing. I tapped the bolt with the side of my mini hammer. Its hard to get a huge swing because the cross member is near by.
Sprayed kroil oil again let it sit then got my mapp torch and heated the outside area surrounding the screw for something like 20 seconds, then got CRC freeze and sprayed the bolt. Hoping to get some shrinkage, but nothing. I tried the air impact gun a few times back and forth nothing. The hex socket managed to start to slip in at least one spot. I really don't want to round the hole.
I am afraid to use MAPP torch for too long because I believe the aluminum casing could melt. I have access to oxy-acetylene torch, thought maybe if I heat the bolt it wouldn't damage the case but that's a huge expensive gamble.
Anyone have any more suggestions on what to try to get this off? :smash:
Generic shot of the transfer case not installed.
So I am servicing my NV244 transfer case today. I immediately noticed that 1 of the 2 bolts is almost flush with the case. Its a 10mm hex hole. I am pretty sure the transfer case is aluminum not sure about the bolt. I sprayed some Kroil Penetrating Oil and let it sit there for a good 15 minutes and then attempted to get it off. Tried using my breaker bar and the socket no go. Then tried my impact gun go back and forth slowly, no go. Then I tried my air impact gun a few times, nothing. I tapped the bolt with the side of my mini hammer. Its hard to get a huge swing because the cross member is near by.
Sprayed kroil oil again let it sit then got my mapp torch and heated the outside area surrounding the screw for something like 20 seconds, then got CRC freeze and sprayed the bolt. Hoping to get some shrinkage, but nothing. I tried the air impact gun a few times back and forth nothing. The hex socket managed to start to slip in at least one spot. I really don't want to round the hole.
I am afraid to use MAPP torch for too long because I believe the aluminum casing could melt. I have access to oxy-acetylene torch, thought maybe if I heat the bolt it wouldn't damage the case but that's a huge expensive gamble.
Anyone have any more suggestions on what to try to get this off? :smash:
Generic shot of the transfer case not installed.