Originally Posted by Mr. P-Body
It's common practice in most machine shops to remove the bolts with a press. Not always, though. I have been in shops where the accepted method to REMOVE, was to use a brass hammer and pound them out. There's a significant difference between beating them out with a steel hammer or tapping them out with a "soft" one. Never saw any negative results when doing this.
We always use a press to remove and replace them here. If you have access to an arbor press, that's the best way to install them.
Rods should always be measured after any "work" has been done to them, including removing the bolts, even if the bolts go back in the same "hole".
Yep put the rods in the over and hit them with a dead blow and knock them right out without having to put tons of pressure on them in the press or use a little heat and a little tap with the hammer. And your done! With very little trama to the rods themselves. But they still need to be resized and check for straightness. Many people use them in the press cold but that can be bad for the rods if the bolts are very tight.
A light amount of heat 150 degrees or so and use the press with the proper jigs is the best way to remove them. But you can knock them out cold with a heavy brass hammer and hammer the new ones in and resize the rods in less time than it takes to get them hot in the oven. So alot of shops do it this way. Also as a mechanic you get paid for more work doing the resize. Real world sucks sometimes.
Dont use a torch!! The chance of warping or detempering the rods is too great. Less chance than using a sledgehammer to knock them out.