1971 Evinrude 60 HP

[fire0501]

Ok I have an issue I havent encountered up until last night. I was assembling the new water pump housing and getting it ready to install on the LU. I was using a tap to clean out the threads as I usually do just for good practice and on the last hole the tap broke off inside.... Im not able to grab the tap with anything and I am at this point unsure what to do. If anyone has run into this problem could you help me out? The drill bits I have will not penetrate this tap I spent about 2.5 hours trying to get this thing out and have used a dremel to gut a slit in the tap to put a flat head in there and back it out but to no avail. This sucks!

 

[Bosunsmate]

Re: 1971 Evinrude 60 HP

It must be in there tight to break a tap.
Heat up the housing around it a bit, try a pointed cold chisel to turn it.
If its not a big part of the tap in there, you could screw it further down with a bolt, then use a smaller bolt on the pump

 

[fire0501]

Re: 1971 Evinrude 60 HP

Thanks Bosunsmate. Tonight I tried to weld a bolt to it and back it out but that didnt go as planned so I drilled into the housing from the outside and used a punch to back it out and that worked so I used a 5/16th helicoil and now I have some jb welding to do to clean up my mess.

 

[pn]

Re: 1971 Evinrude 60 HP

i always tap with plenty of lube, a little at a time in and then all the way out blowing off the tap to keep her clean. good job on the removal.

 

[F_R]

Re: 1971 Evinrude 60 HP

Thanks Bosunsmate. Tonight I tried to weld a bolt to it and back it out but that didnt go as planned so I drilled into the housing from the outside and used a punch to back it out and that worked so I used a 5/16th helicoil and now I have some jb welding to do to clean up my mess.

I gotta hand it to ya, that was pretty creative. And Lady Luck sure was with you.

 

[fire0501]

Re: 1971 Evinrude 60 HP

Yes Lady luck was with me If it was one of the holes closer to the solenoids I don't know that I would have been able to drill through the case but I was lucky! I used plenty of Lube but this is an old tap and I think I have dropped it quite a few times on the concrete garage floor and that probably caused some hairline fractures and she was just waiting to mess my day up lol.