Went to check out an overheat issue on my '86 Evinrude 150 yesterday and pulled both water jacketcovers and tried to pull both heads. I ended up breaking off 3 water jacket bolt heads in the starboard side head which will need extraction, and when I found 4 of the head bolts to be completely seized when removing the port side head, I started to just put them back where I found them and accidentaly snapped one off in the block from overtightening.
So now, I need to find a way to remove the 4 seized bolts and extract the one I broke so I can finish this project and finally get the boat on the water. I already tried plenty of rust-buster and tapping it with a hammer. One of the bolts is starting to round out at the head... Was thinking of dremmeling off the seized heads and then trying to extract the studs somehow.
Advice would be greatly appreciated as I have never dealt with this before. I would take it to a machine shop, but need to see if this is something I can handle first. Thx all!
Side note: the pistons on the starboard side looked great when I got the head off. Hoping it follows suit on port. I found the overheat issue after the fact... Some of the rtv I had used had smushed over and covered the two small t-stat water passages on that side making it impossible for water to flow through the passages. Also am replacing the water deflectors while I'm in there. Got the ones on the starboard side out and they were in horrible shape.
So now, I need to find a way to remove the 4 seized bolts and extract the one I broke so I can finish this project and finally get the boat on the water. I already tried plenty of rust-buster and tapping it with a hammer. One of the bolts is starting to round out at the head... Was thinking of dremmeling off the seized heads and then trying to extract the studs somehow.
Advice would be greatly appreciated as I have never dealt with this before. I would take it to a machine shop, but need to see if this is something I can handle first. Thx all!
Side note: the pistons on the starboard side looked great when I got the head off. Hoping it follows suit on port. I found the overheat issue after the fact... Some of the rtv I had used had smushed over and covered the two small t-stat water passages on that side making it impossible for water to flow through the passages. Also am replacing the water deflectors while I'm in there. Got the ones on the starboard side out and they were in horrible shape.