Best way to remove nipples on water pump?

LovetheA's said

I wanted to refurbish and repaint my 383 BB water pump. I also have to remove one of the heater hose nipple connections to get one of the water pump bolts out. While I’m doing that I figured I’d replace the nipples with new ones. Is there a tool to remove these nipples without crushing or damaging them?

View attachment 1715209456

Click to expand...

The easiest way to remove them and also pipe plugs is to thermal shock them. to do this you heat the nipple or pipe plug being removed with a torch. do not heat the cast housing. The nipple or pipe plug does not have to be red hot but needs to be hotter than a propane torch will get it, so it works best with an oxy-acetylene torch. Then douche the nipple or pipe plug with cold water wait about 5 seconds and remove with suitable tool. the nipples normally require a pipe wrench. Good luck.