Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> Broke bolt for trunk latch..., suggestions on repair requested
dangerranger01
post Oct 2 2015, 09:09 PM
Post #1


Member
**

Group: Members
Posts: 145
Joined: 12-August 05
From: Boring, Oregon U.S.A.
Member No.: 4,578
Region Association: None
Just my luck, i snapped off a bolt that held the rear trunk latch on. Pulling it to replace the spring that broke. Anyone else experience this?? I'd venture to say that tig welding a head on to get a wrench on wouldn't work....probably snap that off too.

Oh, and I snapped an easy-out in it too. Just great!!

What do you think of welding a short stud on...looks like there is enough room for no interfence with the bottom latch assembly....I need a beer.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1443841759.1.jpg)


Oh, and the other bolt that did come out thread's looked nasty....

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1443841759.2.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dangerranger01
post Oct 2 2015, 09:13 PM
Post #2


Member
**

Group: Members
Posts: 145
Joined: 12-August 05
From: Boring, Oregon U.S.A.
Member No.: 4,578
Region Association: None
Might try this....but i think that bolt is rusted on good. Did try penetrating oil....clearly didn't work at all.

https://www.youtube.com/watch?v=ffR2pGVGHbg
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsh
post Oct 2 2015, 10:31 PM
Post #3


Newbie
*

Group: Members
Posts: 17
Joined: 11-November 13
From: Chula Vista CA
Member No.: 16,631
Region Association: None
What about drilling it out and then tapping
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
steuspeed
post Oct 2 2015, 10:43 PM
Post #4


Senior Member
***

Group: Members
Posts: 1,011
Joined: 12-July 11
From: Portland, Oregon
Member No.: 13,308
Region Association: Pacific Northwest
Rusted stud at the 7:00min mark.

You could also cut it out and weld a new 1" square plate with a nut on the back. Or, someone might have a bad trunk from a parts car and you could replace with stock sheet metal.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jeffdon
post Oct 2 2015, 10:48 PM
Post #5


Senior Member
***

Group: Members
Posts: 1,094
Joined: 24-October 06
From: oakland, ca
Member No.: 7,087
Region Association: None
You guys have trunk latches?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
EdwardBlume
post Oct 3 2015, 04:12 AM
Post #6


914 Wizard
**********

Group: Members
Posts: 12,340
Joined: 2-January 03
From: SLO
Member No.: 81
Region Association: Central California
Start with a small drill bit, then use PB blaster. Let it soak. Then larger drill bit. Use a reverse thread tap and see if you can back it out. If frozen still, you'l have to rethread it.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
MMW
post Oct 3 2015, 07:27 AM
Post #7


Member
**

Group: Members
Posts: 152
Joined: 6-October 13
From: Northern NJ
Member No.: 16,477
Region Association: North East States
Looks to be below flush with surface? This is why you shouldn't use easy outs, they are to brittle & people always snap them off. You would have been better off to keep drilling it bigger one step at a time until it came out or you could tap it.

What to do now? If you access to a tig welder you can build it up with weld until flush. Be careful not to weld it to the body. Then weld a washer on it, then a nut on top of the washer. If it doesn't come right out then soak it with penetrating oil & keep trying. Other options are to cut it out & replace. Or try a punch to jar the easy out loose & pick it out so you can continue drilling. Left handed bits or taps might work also.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dangerranger01
post Oct 10 2015, 05:35 PM
Post #8


Member
**

Group: Members
Posts: 145
Joined: 12-August 05
From: Boring, Oregon U.S.A.
Member No.: 4,578
Region Association: None
It looks like there is that spray foam crap behind the thread inserts....anyone know if that is that flammable?

I figure worst case is I try to build a bead up with my TIG to then weld a nut on. If the bigass breaker bar can't take it off then, I'll cut it out and patch a piece of sheetmetal wiht a nut welded on the inside as the thread to hold the latch on. What a pita....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Oct 11 2015, 07:50 AM
Post #9


Advanced Member
****

Group: Members
Posts: 3,900
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest
When you get there. I think I have a hood we can use to get you a latch plate.
I'd planned on prepping it for painting practice.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Spoke
post Oct 11 2015, 09:34 AM
Post #10


Jerry
*****

Group: Members
Posts: 7,370
Joined: 29-October 04
From: Allentown, PA
Member No.: 3,031
Region Association: None
What about welding on a bolt, cut the head off and use as a stud?

No real reason to keep it like the manufacturer designed it. It won't be seen most of the time. As long as it holds the latch plate on...
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Hank914
post Oct 11 2015, 10:30 AM
Post #11


Member
**

Group: Members
Posts: 389
Joined: 7-April 14
From: CA and OR
Member No.: 17,215
Region Association: None
QUOTE(Spoke @ Oct 11 2015, 08:34 AM) *

What about welding on a bolt, cut the head off and use as a stud?

No real reason to keep it like the manufacturer designed it. It won't be seen most of the time. As long as it holds the latch plate on...



(IMG:style_emoticons/default/agree.gif)

No reason at all. So I took the mechanism off. I really really did not like the idea of getting locked out of my trunk. Kinda stooped but it works 4 me
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
EdwardBlume
post Oct 11 2015, 10:37 AM
Post #12


914 Wizard
**********

Group: Members
Posts: 12,340
Joined: 2-January 03
From: SLO
Member No.: 81
Region Association: Central California
QUOTE(Spoke @ Oct 11 2015, 08:34 AM) *

What about welding on a bolt, cut the head off and use as a stud?

No real reason to keep it like the manufacturer designed it. It won't be seen most of the time. As long as it holds the latch plate on...


Well, the car IS a historical time piece of great significance.. and its mystery is only exceeded by its power.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dangerranger01
post Nov 17 2015, 07:20 PM
Post #13


Member
**

Group: Members
Posts: 145
Joined: 12-August 05
From: Boring, Oregon U.S.A.
Member No.: 4,578
Region Association: None
Well I fixed it. Tried to build a bead up with my TIG torch, but it was too recessed down and being only 6mm bolt the arc just kept wanted to jump over to the side. Maybe if i had a smaller than 1/16 electrode it would help??

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1447809656.1.jpg)

So I bite the bullet and used a dremel to cut out the threaded insert and weld a piece of 18gage with a 6mm nut welded to the back.
That nut/threads looks nasty, don't think it would have ever come out. Also note it was two layers thick.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1447809656.2.jpg)

I put the patch piece in and only was using tin-snips because it was so small, cut it a little to small on some parts. Not a huge deal. Used some .030 MIG wire as filler. rest of it I could just blend in with the torch. Note that I indexed the thread center with score marks. Tried, not very hard though, to line it up. The latch has a lot of play in it for any adjustment I might need to make though..

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1447809656.3.jpg)

Holding it flush with a magnetic square. Made me realize I need to invest in smaller magnets to hold pieces in tight areas. This would good enough.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1447809656.4.jpg)

Mostly grinded flush. Turned out okay for me and holds the trunk down. You can see the edge that the magnet held was nice and flush, but the opposite side is a little under. Not a big deal for me on this part, but something to look out for in the future. Couldn't go for a test drive as it was raining and my brothers truck was in the way of the shop. This was my first patch repair ever on my car. Learned lots. I'll need it for the future repairs on sheetmetal on the car. Thanks all for letting me bounce ideas off of!!

(IMG:http://www.914world.com/bbs2/uploads_offsite/i718.photobucket.com-4578-1447809656.5.jpg)



QUOTE(RobW @ Oct 11 2015, 08:37 AM) *

QUOTE(Spoke @ Oct 11 2015, 08:34 AM) *

What about welding on a bolt, cut the head off and use as a stud?

No real reason to keep it like the manufacturer designed it. It won't be seen most of the time. As long as it holds the latch plate on...


Well, the car IS a historical time piece of great significance.. and its mystery is only exceeded by its power.


Mind = blown. epic quote.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 2nd April 2026 - 06:42 AM
Invision Power Board v9.1.4 © 2026  IPS, Inc.
...
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...