Rear trailing arm replacement...Issues, trailing arms attachment bolts |
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Rear trailing arm replacement...Issues, trailing arms attachment bolts |
914rhatt |
Aug 18 2008, 11:34 PM
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#1
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
HELP!!!!! I am restoring my 1971 914 and I have been working on the rear trailing arms... I was able to get 3 of the 6attachment bolts out without breaking them, but there were three more that broke off...So my question is what is the best way to get these broken bolts out???... I am really trying to get this back to a rolling chasis before the snow flies....so ANY one who has done this please pontificate on the manner I can get these broken bolts out????
Any help would be greatly appreciated 914 Rhatt (IMG:style_emoticons/default/unsure.gif) |
r_towle |
Aug 18 2008, 11:43 PM
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#2
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Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Go to a decent hardware store and buy several cobalt drill bits.
The bolts are hardened steel...they will kill most bits. I started with an 1/8 inch bit and several brass bushings nested together to keep the bit centered. Start with the 1/8 inch bit and work up to the bit just shy of the threads..I forget what it is.. Then tap the threads out. Rich |
914rhatt |
Aug 18 2008, 11:55 PM
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#3
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
Go to a decent hardware store and buy several cobalt drill bits. The bolts are hardened steel...they will kill most bits. I started with an 1/8 inch bit and several brass bushings nested together to keep the bit centered. Start with the 1/8 inch bit and work up to the bit just shy of the threads..I forget what it is.. Then tap the threads out. Rich Great...I am going to Carsen City this weekend, so I will stop in at a hardware store and pick up afew of the 1/8 inch bits...Thanksfor the help /914 rhatt |
r_towle |
Aug 19 2008, 12:02 AM
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#4
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Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
1/8, 3/16, 1,4, all the way up to the proper one for the tap.
I forget the size off the top of my head... I keep tham all in a box for the next time I need them.... It can be done, just be patient. Rich |
914rhatt |
Aug 19 2008, 12:21 AM
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#5
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
1/8, 3/16, 1,4, all the way up to the proper one for the tap. I forget the size off the top of my head... I keep tham all in a box for the next time I need them.... It can be done, just be patient. Rich Cool I will get it done, I live out here in the middle of no where we don't have much out here, it is 4hours to the nearset good hardware store...LOLOL I would have never thought I would live here in the middle of no where....Thanks for your help |
Wilhelm |
Aug 19 2008, 12:35 AM
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#6
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Member Group: Members Posts: 408 Joined: 7-September 07 From: Hooterville, OR Member No.: 8,088 Region Association: None |
1/8, 3/16, 1,4, all the way up to the proper one for the tap. I forget the size off the top of my head... I keep tham all in a box for the next time I need them.... It can be done, just be patient. Rich Cool I will get it done, I live out here in the middle of no where we don't have much out here, it is 4hours to the nearset good hardware store...LOLOL I would have never thought I would live here in the middle of no where....Thanks for your help Enco is a mail order machine supply place in Nevada. The ship quickly and are more likely to have what you need than run of the mill hardware stores. I get delivery in Oregon by regular ups in 3-4 days. They also have metric taps and bolts. Their website is use-enco.com Here is a link to cobalt bits: http://www.use-enco.com/CGI/INPDFF?PMPAGE=...;PARTPG=INLMK32 |
914rhatt |
Aug 19 2008, 12:44 AM
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#7
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
1/8, 3/16, 1,4, all the way up to the proper one for the tap. I forget the size off the top of my head... I keep tham all in a box for the next time I need them.... It can be done, just be patient. Rich Cool I will get it done, I live out here in the middle of no where we don't have much out here, it is 4hours to the nearset good hardware store...LOLOL I would have never thought I would live here in the middle of no where....Thanks for your help Enco is a mail order machine supply place in Nevada. The ship quickly and are more likely to have what you need than run of the mill hardware stores. I get delivery in Oregon by regular ups in 3-4 days. They also have metric taps and bolts. Their website is use-enco.com Here is a link to cobalt bits: http://www.use-enco.com/CGI/INPDFF?PMPAGE=...;PARTPG=INLMK32 THanks I will take a look and see if I can get these ordered..... |
sean_v8_914 |
Aug 19 2008, 12:50 AM
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#8
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Chingon 601 Group: Members Posts: 4,011 Joined: 1-February 05 From: San Diego Member No.: 3,541 |
yup, what Rich said. there are plastic plugs covering the threaded holes. you can squirt some penetrating oil in teh threads from teh back side. if it is really stubborn, heat it up till it smokes (about 2 songs on teh radio, time wise that is)
dont be in a hurry. drill it straight. be careful, drill is centered |
914rhatt |
Aug 19 2008, 12:56 AM
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#9
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
yup, what Rich said. there are plastic plugs covering the threaded holes. you can squirt some penetrating oil in teh threads from teh back side. if it is really stubborn, heat it up till it smokes (about 2 songs on teh radio, time wise that is) dont be in a hurry. drill it straight. be careful, drill is centered Thanks...so the plasic plugs can be taken off? and I can spray penetrating oil into the holes...great...Thanks |
rhodyguy |
Aug 19 2008, 07:38 AM
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#10
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,188 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
in case you don't know, not WD40. pbblaster, aerokroil, etc. fill up the holes (twice if the penetrant flows thru) and let it work over night.
k |
914rhatt |
Aug 19 2008, 10:39 PM
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#11
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
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KELTY360 |
Aug 19 2008, 11:27 PM
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#12
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914 Neferati Group: Members Posts: 5,081 Joined: 31-December 05 From: Pt. Townsend, WA Member No.: 5,344 Region Association: Pacific Northwest |
Can't be said enough times:
Be patient. Be very careful that you get the drill bit centered on the bolt. Did I say be patient. Go slow and good luck. |
914rhatt |
Aug 19 2008, 11:57 PM
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#13
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Newbie Group: Members Posts: 23 Joined: 7-July 08 From: Tonopah, Nevada Member No.: 9,263 Region Association: Intermountain Region |
Can't be said enough times: Be patient. Be very careful that you get the drill bit centered on the bolt. Did I say be patient. Go slow and good luck. That is one thing I can do ....patient...it has been 18 years since I stopped driving it (Kids and all) no room for four boys in the girl....So I will be going really slow...THanks |
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