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Stuck Stem Allen Bolt

#1 2021-01-01 4:44pm

Bill_OBrien
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Stuck Stem Allen Bolt

I am trying to strip down this 2008 PK that I just bought but one of the Allen bolts on the stem stripped.

I started with a good PB Blaster soaking and the right sized Allen but it spun. I went up a size and hammered it in. It worked for a bit until o put some real force on it and then the larger Allen spun too...

I tried to drill it and got all the way through but my 1/8 tap is off center so if I follow it with a 1/4 I am going to hit the threads on the stem.

I tried an extractor set but either the bits are too big or if I get one of the smaller ones in there it is too tiny to get any force on it (see pic).

I tried to drill it a bit further w my 1/4 but not all the way so that I can get a larger extractor in but after two bit sets the 1/4 will not drill further....

A bit frustrated!!!

Any constructive ideas are welcomed!!!https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/259119/fd9bbba5-67d1-420e-8d93-7fa03e7e546c5fefc1ddd6.jpeg





https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/259119/553eaac2-d429-4ed6-87cd-c9ea2c75a5205fefc1dc2a.jpeg
https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/259119/e8253720-3908-437c-9b89-b8cbdcd6a9665fefc1dac1.jpeg
https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/259119/1f90e76f-7027-47b1-991e-9921d09c95f35fefc1dba3.jpeg

Last edited by Bill_OBrien (2021-01-01 5:18pm)


1983 Mongoose - Undergoing restoration.
1981 PK Ripper Build - White powder coated Building a blue / white 2013 Retro Looptail
1983 PK Ripper - (No Longer Owned) Bought new as a kid. Burnished aluminum frame / blue decals / blue alloy rims.
1983 Pk Ripper Frame / Fork - Fork is mint chrome - Frame is restored bare aluminum
2007 PK Ripper Looptail Retro Anniversary Edition Build
2008 PK Ripper Looptail Retro - Undergoing restoration
2013 PK Ripper Looptail - New in the box!!
2017 Lil Ripper Looptail 40th Anniversary

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#2 2021-01-01 5:13pm

Bill_OBrien
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Re: Stuck Stem Allen Bolt

I have also tried hammering in a torx socket but that has not worked either...


1983 Mongoose - Undergoing restoration.
1981 PK Ripper Build - White powder coated Building a blue / white 2013 Retro Looptail
1983 PK Ripper - (No Longer Owned) Bought new as a kid. Burnished aluminum frame / blue decals / blue alloy rims.
1983 Pk Ripper Frame / Fork - Fork is mint chrome - Frame is restored bare aluminum
2007 PK Ripper Looptail Retro Anniversary Edition Build
2008 PK Ripper Looptail Retro - Undergoing restoration
2013 PK Ripper Looptail - New in the box!!
2017 Lil Ripper Looptail 40th Anniversary

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#3 2021-01-01 5:18pm

troynlori
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Re: Stuck Stem Allen Bolt

I had exactly the same problem.  Very frustrating.  I even bought that exact same Ryobi extractor set.  There was another extractor set I bought that worked better.


Hutch Fun Facts: All main line Hutch's with digits only S/N (no letters or baseballs) on the rear drop outs were US made and had their dropouts stamped between late '83 and '86.  Obviously the frame manufacture would occur slightly after that, even if they just threw 'em in a bucket randomly.  There is an obvious date code in that the first 2 digits seem to be the month and the 3rd digit is pretty obviously the last digit of the year running from '83-'86.

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#4 2021-01-01 5:19pm

troynlori
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Re: Stuck Stem Allen Bolt

So do you have the bottom screw out it looks like?  Your hole is not really the far off center on the top.  How about give a 3/16" bit a try?  I'll show you something amazing in a sec....


Hutch Fun Facts: All main line Hutch's with digits only S/N (no letters or baseballs) on the rear drop outs were US made and had their dropouts stamped between late '83 and '86.  Obviously the frame manufacture would occur slightly after that, even if they just threw 'em in a bucket randomly.  There is an obvious date code in that the first 2 digits seem to be the month and the 3rd digit is pretty obviously the last digit of the year running from '83-'86.

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#5 2021-01-01 5:30pm

troynlori
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Re: Stuck Stem Allen Bolt

This CRUPI pedal spindle was impossibly stuck in a Profile crank.  I borrowed a "carbide" bit from a friend and drilled it straight down the middle.  Used a 25 yo Ryobi $70 drill press.  Without the core, it came loose easily.

https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/37108/dsci27825fefcbf407.jpg
https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/37108/dsci27875fefcc0fe3.jpg
https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/37108/dsci27895fefcc0f4e.jpg
https://s3.amazonaws.com/uploads.bmxmuseum.com/user-images/37108/dsci27925fefcc0f34.jpg

In my case, the case hardening of the spindle....which is only on the case....guided the bit down the middle.

If I had your situation, I would drill it 3/16".  Then I would drill the head down the middle a little deeper and put a better extractor in there (also at HD).  Personally I wouldn't worry about the head popping off.  The head is necessary to create tension on the threaded part.  Without it, the tension is gone and then you only have corrosion.

I believe if you look in your fork you will see that the steer tube has a bit of space before the top.  So that when you took out the one screw, the other one ended up with an odd tension.


Hutch Fun Facts: All main line Hutch's with digits only S/N (no letters or baseballs) on the rear drop outs were US made and had their dropouts stamped between late '83 and '86.  Obviously the frame manufacture would occur slightly after that, even if they just threw 'em in a bucket randomly.  There is an obvious date code in that the first 2 digits seem to be the month and the 3rd digit is pretty obviously the last digit of the year running from '83-'86.

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#6 2021-01-01 5:45pm

rcsnipe2000
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Re: Stuck Stem Allen Bolt

i say cut the bolt down the slit opening and get the stem off....toss it straight in the scrap pile. and use a different/better stem. and then go have a beer

rc


I sell used parts! If you are looking for nos or dead mint parts, dont buy from me. If you are looking for used, usable parts. Im the guy ya want to buy from.

BUY- SELL + TRADE

WILL TRADE FOR

snafu mobus or simular gyro , gold, red,or blue, sealed threadless headset gold, red, anno chain tensioners red, gold, or blue, anno v brakes gold or red, anno u brakes blue,gold, or red anno colored spoke nipples gold, red, or blue

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#7 2021-01-01 6:12pm

DKGOBBLER1
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Re: Stuck Stem Allen Bolt

+1   but after stem is off try a little heat
alum. will expand,   might  be easier
to extract remaining  metal bits...remaining bolts


If it wasn't for bad luck, I wouldn't have any luck at all.....

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#8 2021-01-01 6:49pm

Shotgun
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Re: Stuck Stem Allen Bolt

I weld a bolt with a hex to the stripped allen bolt and it will come right off.

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#9 2021-01-01 7:50pm

bigair
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Re: Stuck Stem Allen Bolt

Ive had good luck with reverse drill bits. Lots of times the piece will thread out after the heat from drilling starts flowing


Rolling on Chrome Molly

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#10 2021-01-01 7:54pm

troynlori
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Re: Stuck Stem Allen Bolt

I'm becoming concerned about Mr. O'Brien.  It's been several hours since we've heard from him....I'm afraid he's bashing his head on this stem.


Hutch Fun Facts: All main line Hutch's with digits only S/N (no letters or baseballs) on the rear drop outs were US made and had their dropouts stamped between late '83 and '86.  Obviously the frame manufacture would occur slightly after that, even if they just threw 'em in a bucket randomly.  There is an obvious date code in that the first 2 digits seem to be the month and the 3rd digit is pretty obviously the last digit of the year running from '83-'86.

Online

 

#11 2021-01-02 12:05am

Bill_OBrien
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Re: Stuck Stem Allen Bolt

Nope... fortunately no frustration related self inflicted head injuries.

I thought I would try something different. I hammered in a T25 Torx socket. I also put ‘Red’ Loctite on it. The Red is the permanent stuff. I am going to let it cure for a day.

If this does not work I may cut it and be done with it.

I’ll keep y’all posted!

Thanks for the ideas and the support!!


1983 Mongoose - Undergoing restoration.
1981 PK Ripper Build - White powder coated Building a blue / white 2013 Retro Looptail
1983 PK Ripper - (No Longer Owned) Bought new as a kid. Burnished aluminum frame / blue decals / blue alloy rims.
1983 Pk Ripper Frame / Fork - Fork is mint chrome - Frame is restored bare aluminum
2007 PK Ripper Looptail Retro Anniversary Edition Build
2008 PK Ripper Looptail Retro - Undergoing restoration
2013 PK Ripper Looptail - New in the box!!
2017 Lil Ripper Looptail 40th Anniversary

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#12 2021-01-02 6:18am

kalel92198
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Re: Stuck Stem Allen Bolt

It looks like you drilled it all the way through. It also looks like the head of the bolt is the problem. Here is my suggestion, go in between the clamping area with a fine blade hacksaw and cut that bolt in half. Use your easy out and take the thread side bolt out through the backside. Then from that same side take a punch or smaller bolt and pound the head out.


As Per The Museum Rules I am not allowed to have external links in my signature after having them up for 6 months to a year? Why because I pissed them off for calling out the obvious! Here’s my signature:
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#13 2021-01-02 7:22am

rcsnipe2000
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Re: Stuck Stem Allen Bolt

once you cut the bolt....it will relieve the tension holding the stem on....alot of times the threaded piece will come out by hand after the tension is released.

rc


I sell used parts! If you are looking for nos or dead mint parts, dont buy from me. If you are looking for used, usable parts. Im the guy ya want to buy from.

BUY- SELL + TRADE

WILL TRADE FOR

snafu mobus or simular gyro , gold, red,or blue, sealed threadless headset gold, red, anno chain tensioners red, gold, or blue, anno v brakes gold or red, anno u brakes blue,gold, or red anno colored spoke nipples gold, red, or blue

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#14 2021-01-02 2:48pm

spyker
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Re: Stuck Stem Allen Bolt

The only way to fix this is to cut the bolt in half.I ran into a similar situation a few years ago and had to do this.

This is a good lesson to always use anti seize or grease on the threads and have good quality allen wrenches


Made In Taiwan #1.....You Have Chosen Wisely!  Guaranteed Strength
Would you trust a fat ugly lazy drunk to weld up a frame that will be ridden hard?
$20 goes a long way here
violence solves everything!
never unarmed!
#VOGR
no fijindus picklers!

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#15 2021-01-02 4:52pm

rcsnipe2000
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Re: Stuck Stem Allen Bolt

good quality allen wrench will only go so far on a shitty steel bolt. lol

rc


I sell used parts! If you are looking for nos or dead mint parts, dont buy from me. If you are looking for used, usable parts. Im the guy ya want to buy from.

BUY- SELL + TRADE

WILL TRADE FOR

snafu mobus or simular gyro , gold, red,or blue, sealed threadless headset gold, red, anno chain tensioners red, gold, or blue, anno v brakes gold or red, anno u brakes blue,gold, or red anno colored spoke nipples gold, red, or blue

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#16 2021-01-02 5:47pm

troynlori
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Re: Stuck Stem Allen Bolt

I'm surprised we would say the only way.  I was successful in exactly the same situation with absolutely no damage to the stem.  When you use an extractor, you have to drill the head and get a different extractor. 

Anyhow, I hope it's out by now.


Hutch Fun Facts: All main line Hutch's with digits only S/N (no letters or baseballs) on the rear drop outs were US made and had their dropouts stamped between late '83 and '86.  Obviously the frame manufacture would occur slightly after that, even if they just threw 'em in a bucket randomly.  There is an obvious date code in that the first 2 digits seem to be the month and the 3rd digit is pretty obviously the last digit of the year running from '83-'86.

Online

 

#17 2021-01-03 6:16pm

spyker
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Re: Stuck Stem Allen Bolt

rcsnipe2000 wrote:

good quality allen wrench will only go so far on a shitty steel bolt. lol

rc

I have seen shitty allen wrenches get stripped being used on good bolts.I only use Bondhus and Eklind allens.


Made In Taiwan #1.....You Have Chosen Wisely!  Guaranteed Strength
Would you trust a fat ugly lazy drunk to weld up a frame that will be ridden hard?
$20 goes a long way here
violence solves everything!
never unarmed!
#VOGR
no fijindus picklers!

Online

 

#18 2021-01-03 6:28pm

Bill_OBrien
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From: Katy - Texas
Registered: 2019-02-08
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Re: Stuck Stem Allen Bolt

The bolt has been cut....

Thanks for all of the advice!!


1983 Mongoose - Undergoing restoration.
1981 PK Ripper Build - White powder coated Building a blue / white 2013 Retro Looptail
1983 PK Ripper - (No Longer Owned) Bought new as a kid. Burnished aluminum frame / blue decals / blue alloy rims.
1983 Pk Ripper Frame / Fork - Fork is mint chrome - Frame is restored bare aluminum
2007 PK Ripper Looptail Retro Anniversary Edition Build
2008 PK Ripper Looptail Retro - Undergoing restoration
2013 PK Ripper Looptail - New in the box!!
2017 Lil Ripper Looptail 40th Anniversary

Offline

 

#19 2021-01-03 6:54pm

troynlori
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Re: Stuck Stem Allen Bolt

Were you then able to remove the screw?


Hutch Fun Facts: All main line Hutch's with digits only S/N (no letters or baseballs) on the rear drop outs were US made and had their dropouts stamped between late '83 and '86.  Obviously the frame manufacture would occur slightly after that, even if they just threw 'em in a bucket randomly.  There is an obvious date code in that the first 2 digits seem to be the month and the 3rd digit is pretty obviously the last digit of the year running from '83-'86.

Online

 

#20 2021-01-04 1:24am

BRICKOS2
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Re: Stuck Stem Allen Bolt

rcsnipe2000 wrote:

i say cut the bolt down the slit opening and get the stem off....toss it straight in the scrap pile. and use a different/better stem. and then go have a beer

rc

This. It's a $20 at best

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#21 2021-01-04 6:27pm

kalel92198
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Re: Stuck Stem Allen Bolt

Bill_OBrien wrote:

The bolt has been cut....

Thanks for all of the advice!!

Dibs on the stem!


As Per The Museum Rules I am not allowed to have external links in my signature after having them up for 6 months to a year? Why because I pissed them off for calling out the obvious! Here’s my signature:
REMOVE THE CANCER FROM THE MUSEUM SO WE DONT HAVE TO DEAL WITH HACKERS ANYMORE!
ISO:85 mcs styler f/f
Nbd Kattsclawws67
RBD2
FREE LIL HARO

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