View Full Version : retapping hole? my seat wont bolt down
mkiv98
02-07-2009, 12:35 PM
So it seems that one of the holes that bolts my seat down is stripped...aka I can't get the bolt in there. Since I'm kind of a noob mechanic, could someone tell me what tool I need and how to take care of the problem? It would be greatly appreciated!
reinvent
02-07-2009, 12:48 PM
So it seems that one of the holes that bolts my seat down is stripped...aka I can't get the bolt in there. Since I'm kind of a noob mechanic, could someone tell me what tool I need and how to take care of the problem? It would be greatly appreciated!
use some muscle. or weld it.
Alpha Residence
02-07-2009, 12:52 PM
Helicoil inserts would fix that problem just tap the hole a size bigger than stock and use a helicoil insert.
neverrain
02-07-2009, 01:19 PM
wtf are you guys talking about ^^
Muscle? Yes, let's muscle in the stripped bolts that hold the seat to the floor. Good idea. I'll leave the "weld it" comment alone.
Inserts would work, but it's more of a pain in the ass than he needs.
Just get a tap, as in tap and die. The exact same thing happened to me and I just ran a tap through the hole. Needed very little pressure to get through and it worked perfectly. Don't try to reuse the old stripped bolts though. Go to Home Depot and replace them.
Harbor Frieght Tap and Die set - 40 pc metric $12.99 (cheap for this set) - Harbor Freight Tools - Quality Tools at the Lowest Prices (http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=39384)
Make sure that set has the size you need. I don't remember it off the top of my head.
FaLKoN240
02-07-2009, 01:23 PM
wtf are you guys talking about ^^
Muscle? Yes, let's muscle in the stripped bolts that hold the seat to the floor. Good idea. I'll leave the "weld it" comment alone.
Inserts would work, but it's more of a pain in the ass than he needs.
Just get a tap, as in tap and die. The exact same thing happened to me and I just ran a tap through the hole. Needed very little pressure to get through and it worked perfectly. Don't try to reuse the old stripped bolts though. Go to Home Depot and replace them.
Freight and Harbor Tap and Die set - 40 pc metric $12.99 (cheap for this set) - Harbor Freight Tools - Quality Tools at the Lowest Prices (http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=39384)
Make sure that set has the size you need. I don't remember it off the top of my head.
Thank you for having a quality post. Some people on this forum shouldn't be allowed to post.
ryguy
02-07-2009, 01:49 PM
use some muscle. or weld it.
Helicoil inserts would fix that problem just tap the hole a size bigger than stock and use a helicoil insert.
The fuck is wrong with you guys? Weld it?
Why go through the trouble of helicoil when you can just retap or at worst retap for a bigger bolt?
wtf are you guys talking about ^^
Inserts would work, but it's more of a pain in the ass than he needs.
Just get a tap, as in tap and die. The exact same thing happened to me and I just ran a tap through the hole. Needed very little pressure to get through and it worked perfectly. Don't try to reuse the old stripped bolts though. Go to Home Depot and replace them.
Harbor Frieght Tap and Die set - 40 pc metric $12.99 (cheap for this set) - Harbor Freight Tools - Quality Tools at the Lowest Prices (http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=39384)
Make sure that set has the size you need. I don't remember it off the top of my head.
A set of taps and dies is worth the money you pay if you plan on doing a lot of your own work, especially on an older car that has already been messed with by the previous owner.
Since I'm kind of a noob mechanic
KISS guys, a tap and die should be very easy for a beginner mechanic. What are the chances that a beginner mechanic even has a welder?
I've found that 9 times out of 10, if you ever rotate the bolt after it has already stripped out, the threads are junk and retapping them the same size isn't going to help much.
Just step up to the next size and drill out the appropriate sized hole for the tap size. Nissan's thankfully used nuts with tons of extra meat on them, so this is possible in almost every location I can think of in the car on a welded nut on the frame.
HellaSlowAndOld
02-07-2009, 02:58 PM
http://i232.photobucket.com/albums/ee116/WRX240SX/tapdie.jpg
and ur done
very easy and u can rent this set at ur local autozone...good luck! :bigok:
mkiv98
02-07-2009, 03:20 PM
thanks for all the info guys! this is easily the best section on zilvia
alkemyst
02-07-2009, 07:02 PM
Helicoil inserts would fix that problem just tap the hole a size bigger than stock and use a helicoil insert.
If you are tapping it a size larger you don't need a helicoil.
TanaMU
02-07-2009, 07:07 PM
heh, same damn thing happened to me. I drilled the hole out a minimal amount and tapped it. bought some grade 8 bolts (pay attention to the grade of bolts you buy to replace the stockers) and it was done. Just be super careful to tap it straight. :P
S13-KA24DET
02-07-2009, 11:15 PM
I just welded a stud and used a nut
Matej
02-07-2009, 11:19 PM
One of my seat bolts was cross threaded, and it ripped out the the entire hole with it. I had a nut of the same size/thread pattern welded in the hole's place.
Ninjabread
02-08-2009, 09:40 AM
I just run on 3 bolts. lol.
Oops.
alkemyst
02-08-2009, 09:43 AM
Those those having problems drilling into 'hard' metal. You need to go slow, use some cutting oil; as soon as you overheat the bit it's pretty much worthless...drilling is a case where faster isn't always better.
mkiv98
02-08-2009, 02:12 PM
I just run on 3 bolts. lol.
Oops.
on my stock seat, i believe this is the cause of my seat eventually twisting and getting all fucked up
alkemyst
02-08-2009, 04:31 PM
on my stock seat, i believe this is the cause of my seat eventually twisting and getting all fucked up
it'd will eventually cause a failure if you only use three bolts. Whatever rail only has one bolt will keep shifting side to side until the bolted side shears off.
If anything do something to at least pin it in place.
mkiv98
02-08-2009, 05:06 PM
it'd will eventually cause a failure if you only use three bolts. Whatever rail only has one bolt will keep shifting side to side until the bolted side shears off.
If anything do something to at least pin it in place.
I got a old recaro in there now...ended up using a lag screw of the same size (3/8" x 1") from Home Depot and it was quick, easy, and works well.
windshieldwiper
02-08-2009, 05:13 PM
Those those having problems drilling into 'hard' metal. You need to go slow, use some cutting oil; as soon as you overheat the bit it's pretty much worthless...drilling is a case where faster isn't always better.
thats interesting. why is the bit useless with it is hot? does it become soft? what is the best type of drill for drill out steel bolts. i have a 14 volt rechargeable drill which is quite slow. thanks.
alkemyst
02-08-2009, 05:44 PM
thats interesting. why is the bit useless with it is hot? does it become soft? what is the best type of drill for drill out steel bolts. i have a 14 volt rechargeable drill which is quite slow. thanks.
Hot is one thing...overheating another.
If you overheat a bit it loses it's temper and becomes useless.
ryguy
02-08-2009, 10:52 PM
Hot is one thing...overheating another.
If you overheat a bit it loses it's temper and becomes useless.
Not to mention it "glazes" the surface being drilled. Slow and firm pressure always wins.
boske
02-09-2009, 12:28 PM
Your rechargeable drill won't be too fast. As much as I hate battery powered tools, the drills usually work pretty well with their high torque and low speed.
vBulletin® v3.8.11, Copyright ©2000-2021, vBulletin Solutions Inc.