radiator bolts

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tomstractor
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radiator bolts

Postby tomstractor » Mon Mar 01, 2021 7:35 am

I took the radiator off to clean and replace the overflow tube. Before replacing it with new stainless bolts I was cleaning up
the threads with a tap and next to the last the tap broke flush with the surface. It must have been a flaw as it was not very tight.
Now how do I get it out? It seems to be stuck, will not turn in or out. :help:

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Slim140
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Re: radiator bolts

Postby Slim140 » Mon Mar 01, 2021 7:52 am

Possibly by busting the tap with a center punch, it'll be tough though. Good luck!
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tomstractor
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Joined: Mon Sep 04, 2017 11:12 am
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Tractors Owned: 49 Cub,57Cub, 57 Low Boy, 48 BN, 48 Ford8N, 49Ford 8N, 56 Massey Harris 50, 58 MF 65, 77 MF 265
Circle of Safety: Y
Location: Belchertown, MA

Re: radiator bolts

Postby tomstractor » Mon Mar 01, 2021 7:57 am

The radiator bolt hole is a blind hole so would be tough to get it all out. Thanks, I may have try that.

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Slim140
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Re: radiator bolts

Postby Slim140 » Mon Mar 01, 2021 8:04 am

tomstractor wrote:The radiator bolt hole is a blind hole so would be tough to get it all out. Thanks, I may have try that.

It'll be tough for sure, it would be tough if it was in a vice using a milling machine :D
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NJ Farmer
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Re: radiator bolts

Postby NJ Farmer » Mon Mar 01, 2021 8:23 am

I’ve been there before and it stinks!!

A little tip after your tap removal. Use never-seize on those stainless steel bolt for future removal ease. The next generation owner will thank you in his prayers....

NJ Farmer

Gary S.
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Re: radiator bolts

Postby Gary S. » Mon Mar 01, 2021 8:44 am

Google tap removal tool or tap extractor

tst
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Re: radiator bolts

Postby tst » Mon Mar 01, 2021 9:38 am

a punch can break the tap into pieces then pull them out, also a diamond tip drill will drill a tap,

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Re: radiator bolts

Postby SamsFarm » Mon Mar 01, 2021 9:57 am

I have taken out a lot of broken taps through the years, and what you want to do is attempt to back the tap out with a center punch by alternating light impacts on each flute of the tap. Sometimes it works, sometimes it dont!

Start by (wearing safety glasses) taking some compressed air (if available) and blowing out any loose chips in the hole out as best as possible!
(Many taps and drills are broken from improper chip removal!)

There is a sweet spot to hold your center punch so your impacts are directed to reverse the tap.

The hardest part is the feel for how hard to hit. Too hard and you chip the tap, not hard enough and it dont move!

(((***Dont forget those safety glasses***, impacting on the tap has the potential to chip the tap, and those pieces can fly anywhere! I have actually chipped a tap and the broken part fly off and stick in my skin!)))

Go slow, and be patient!

Plan B is a EDM (electrical discharge machine) to burn the tap out with a electrode while submerged in fluidl! :shock:

tomstractor
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Tractors Owned: 49 Cub,57Cub, 57 Low Boy, 48 BN, 48 Ford8N, 49Ford 8N, 56 Massey Harris 50, 58 MF 65, 77 MF 265
Circle of Safety: Y
Location: Belchertown, MA

Re: radiator bolts

Postby tomstractor » Mon Mar 01, 2021 2:33 pm

:{_}: :{_}: I got it!!! Much tapping then I used my Dremel to make clearance to use a very small pair of needle nose plyers like a tap extractor. After getting it to move,very little, I worked it back and forth and kept blowing out the chips. Much patience and time and it worked.

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Slim140
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Circle of Safety: Y

Re: radiator bolts

Postby Slim140 » Tue Mar 02, 2021 7:13 am

Glad you got it out :{_}:
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Stanton
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Re: radiator bolts

Postby Stanton » Tue Mar 02, 2021 8:05 am

tomstractor wrote::{_}: :{_}: ...Much patience and time and it worked.


There's the key: patience. Glad you were successful. :-:-):
Stanton
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