Broken bolts...
Posted: Thu Nov 18, 2010 3:47 pm
Not really cooling system related, but here goes.
I've removed the dead water pump - and of course the inevitable happened.
Three of the 1/4" bolts sheared. The two at the top left quite long 'stumps' so after a kettle of boiling water was poured over them, out they came using mole grips.
The other is more of a problem. At the bottom and close to the crank pulley, access is more restricted. It also goes into a blind thread. And has only about 1/4" of a 'stump' left. Boiling water doesn't seem to heat it up by much - too much mass round it?
I've stopped for the day as it's raining and getting dark.
So any tips how to remove it? Next thing I was going to try was a hot air gun on it. Not too keen on using a blowlamp there.
I suppose at the end of the day it will mean removing the front cover, drilling and helicoiling. At least I have the correct helicoil set.
Why do these things always happen in the winter? It's been fine all spring and summer.![Wink ;-)](./images/smilies/icon_wink.gif)
I've removed the dead water pump - and of course the inevitable happened.
Three of the 1/4" bolts sheared. The two at the top left quite long 'stumps' so after a kettle of boiling water was poured over them, out they came using mole grips.
The other is more of a problem. At the bottom and close to the crank pulley, access is more restricted. It also goes into a blind thread. And has only about 1/4" of a 'stump' left. Boiling water doesn't seem to heat it up by much - too much mass round it?
I've stopped for the day as it's raining and getting dark.
So any tips how to remove it? Next thing I was going to try was a hot air gun on it. Not too keen on using a blowlamp there.
I suppose at the end of the day it will mean removing the front cover, drilling and helicoiling. At least I have the correct helicoil set.
Why do these things always happen in the winter? It's been fine all spring and summer.
![Wink ;-)](./images/smilies/icon_wink.gif)