Water Pump Bolt Broke Off Inside (with Pictures)

jrichker · Sep 17, 2013

I hear sobbing and see tears coming from a 5.0 Mustang lover's wallet.

j0rd4n · Sep 18, 2013

ez out is out but i mulitated the hole. i was able to thread the next size into it nicely tho.

j0rd4n · Sep 18, 2013

j0rd4n · Sep 18, 2013

jrichker said:
I hear sobbing and see tears coming from a 5.0 Mustang lover's wallet.

mikestang63 said:
Let us know how that works out for you.

no me and brother figured things outs. i mulitated the hole i know i couldnt get the damn ez out but i did end up getting it out eventually. my brother and i ended up threading the hole nicely threw with the next size up bolt (3/8). luckily it fits through the timing cover, it doesnt fit through the water pump but it will take 2 seconds of drilling one of the holes of the pump. im learning as i go so this is the last time i use easy outs.

the bolt was flush with the block what should i have done instead of "ez outing" it? because those things are crap. should i just drill it out with a center punch and rethread instead of getting hardened steel stuck in it.

j0rd4n · Sep 18, 2013

mikestang63 said:
Let us know how that works out for you.

j0rd4n · Sep 18, 2013

I did all that drilling and ended up finally being able to punch it out

j0rd4n · Sep 18, 2013

View attachment 83727

j0rd4n · Sep 18, 2013

View attachment 83728

Noobz347 · Sep 19, 2013

Now (assuming you got the whole bolt out) would be a good time to pick up and install a helicoil.

jrichker · Sep 19, 2013

+1 on the helicoil...

View: http://www.youtube.com/watch?v=RFYa6sjhh_E

j0rd4n · Sep 19, 2013

Noobz347 said:
Now (assuming you got the whole bolt out) would be a good time to pick up and install a helicoil.

jrichker said:
+1 on the helicoil...

View: http://www.youtube.com/watch?v=RFYa6sjhh_E

so with the heliocoil it will allow me to take the 3/8 thread i was able to make in my mutilated hole, and then put in the helicoil insert to have the original 5/16 thread in my hole. then i would be able to able to use the original sized bolt?

j0rd4n · Sep 19, 2013

i watched the video and that seems like what he did im just trying to be sure. that would be a much better idea then having to drill one hole of my water pump and have to use one oversized bolt haha.

j0rd4n · Sep 19, 2013

jrichker said:
+1 on the helicoil...

View: http://www.youtube.com/watch?v=RFYa6sjhh_E

Noobz347 said:
Now (assuming you got the whole bolt out) would be a good time to pick up and install a helicoil.

unfortunately i tapped the hole with a regular 3/8 tap because i didnt know at the time how helicoil inserts work. i wont be able to do that now because i didnt tap the hole with the special helicoil tap which allows to me to put in the insert. i assume this wont work is because the thread pattern is different on both sides of the insert? i believe the only route i can go now is to put my one oversized bolt in and make the water pump hole a tad bigger.

please just correct me if im wrong

jrichker · Sep 19, 2013

It seem that you have shot yourself in the foot, because now a HeliCoil won't work - the thread sizes are wrong for a HeliCoil.

You will need to proceed with the larger bolt and hope that it isn't too big for the water pump...

1200gt · Sep 19, 2013

This is amazing!!!! The Pro's 2 -vs- The Grimlins 10!

This is like watching those guys ski off a mountain while behind them there is a huge avalanche barreling down on them... yet, they seem to be having fun!

This predicament would be like Horror Movie on Steroids for me!

mikestang63 · Sep 19, 2013

jrichker said:
It seem that you have shot yourself in the foot, because now a HeliCoil won't work - the thread sizes are wrong for a HeliCoil.

You will need to proceed with the larger bolt and hope that it isn't too big for the water pump...

Hopefully this does not turn into a costly education. Let me offer one last suggestion as it seems my prior posts fell on dead ears. Loctite makes a chemical type of thread former. You put it on the bolt and in the bolt hole, let it set up and it forms a useable thread. Hopefully you didn't hog out the hole so large that the loctite won't work.

http://www.amazon.com/dp/B000WSEUII/?tag=stangnet-20

I would try that over jamming an oversized bolt in.

j0rd4n · Sep 19, 2013

jrichker said:
It seem that you have shot yourself in the foot, because now a HeliCoil won't work - the thread sizes are wrong for a HeliCoil.

You will need to proceed with the larger bolt and hope that it isn't too big for the water pump...

well apparently the regular tap for a 3/8 bolt and the tap for the 3/8 helicoil must not be far off because somehow i threaded in the insert perfectly then the oiriginal 5/16 bolt torqued down just fine. me and my brother did one last "Hoo-rah" today and now the car is back together running perfectly with no water leak.

1200gt said:
This is amazing!!!! The Pro's 2 -vs- The Grimlins 10!

This is like watching those guys ski off a mountain while behind them there is a huge avalanche barreling down on them... yet, they seem to be having fun!

This predicament would be like Horror Movie on Steroids for me!

i dont see the big deal? worst case scenario the block is made of cast-iron i could of completely welded up the hole and started a fresh hole.

i know i mutilated the hole, im not afraid to say im the definition of a novice mechanic. this is literally my first bolt extraction LOL

im 21 yrs old and just got interested in mechanics like a year ago. this is my second car

im pleased to let you know that my car is now completely back together and there is zero water leak.

Noobz347 · Sep 19, 2013

There's a couple of things you can do here. One is find a stepped stud in SAE size and thread. Good luck with that one because they seem to be getting harder and harder to find.

The other thing you can do is buy a short length of STAINLESS all-thread and cut the smaller end yourself.

Thread-lok Blue, would a good addition to the threads going into the block with either of these options.

jrichker · Sep 19, 2013

mikestang63 said:
I'll eat a bug if

Hopefully this does not turn into a costly education. Let me offer one last suggestion as it seems my prior posts fell on dead ears. Loctite makes a chemical type of thread former. You put it on the bolt and in the bolt hole, let it set up and it forms a useable thread. Hopefully you didn't hog out the hole so large that the loctite won't work.

http://www.amazon.com/dp/B000WSEUII/?tag=stangnet-20

I would try that over jamming an oversized bolt in.

Neat idea! That's what I like about Stangnet: I can learn new techniques from other people's experience and background.

j0rd4n · Sep 19, 2013

Noobz347 said:
There's a couple of things you can do here. One is find a stepped stud in SAE size and thread. Good luck with that one because they seem to be getting harder and harder to find.

The other thing you can do is buy a short length of STAINLESS all-thread and cut the smaller end yourself.

Thread-lok Blue, would a good addition to the threads going into the block with either of these options.

well apparently the regular tap for a 3/8 bolt and the tap for the 3/8 helicoil must not be far off because somehow i threaded in the insert perfectly then the oiriginal 5/16 bolt torqued down just fine. me and my brother did one last "Hoo-rah" today and now the car is back together running perfectly with no water leak.

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