# Stripped caliper threads **URL:** \ **Category:** Shift518 Automotive\ **Created:** [December 3, 2009, 7:43am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799 "2009-12-03T07:43:27Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 3, 2009, 7:43am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/1 "2009-12-03T07:43:27Z")
I picked up some Z32 aluminum brake calipers cheap last year, however one of the rear calipers has stripped threads where the brake hose threads in. Would it be safe to use HeliCoil? Or should I replace the caliper (rather not as it’s powercoated and freshly rebuilt)? Thanks ---
**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\ **Post date:** [December 3, 2009, 7:44am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/2 "2009-12-03T07:44:36Z")
is it possible to tap it for a larger bolt? ---
**Author:** ![SRS\_BZNS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/srs_bzns/32/6375_2.png) [@SRS\_BZNS](https://forums.speedlife.net/u/SRS_BZNS)\ **Post date:** [December 3, 2009, 7:55am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/3 "2009-12-03T07:55:02Z")
> [@JayS a dad, 3/27/2007](https://forums.speedlife.net/t/jays-a-dad-3-27-2007/26711/18): > > is it possible to tap it for a larger bolt? That is what i was thinking. Just going to be a pain in the balls finding a larger bolt ---
**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\ **Post date:** [December 3, 2009, 7:58am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/4 "2009-12-03T07:58:00Z")
probably a M12 fastener now. i have no idea if it has enough room to drill/tap to fit a M14. ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 3, 2009, 8:01am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/5 "2009-12-03T08:01:23Z")
Well the caliper’s setup for a banjo bolt. However I need to use 240sx-\>Z32 conversion brake lines and those just have ends that thread in, no banjo bolt. I guess I can get custom lines made up. It’s going to be difficult to drill/tap the hole because it has the cone shaped piece pressed inside it to make the caliper/banjo bolt seal. ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 3, 2009, 8:01am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/6 "2009-12-03T08:01:43Z")
Yes I would guess a M12. ---
**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\ **Post date:** [December 3, 2009, 8:02am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/7 "2009-12-03T08:02:46Z")
ohh, its the fluid port thats stripped, i missed that in your post. yeah thats gonan be tough. ---
**Author:** ![SRS\_BZNS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/srs_bzns/32/6375_2.png) [@SRS\_BZNS](https://forums.speedlife.net/u/SRS_BZNS)\ **Post date:** [December 3, 2009, 8:33am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/8 "2009-12-03T08:33:38Z")
might just be better to get a new one. Make the bad one a nice book end or paper weight ---
**Author:** ![Mk4\_30R\_Ban](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mk4_30r_ban/32/6347_2.png) [@Mk4\_30R\_Ban](https://forums.speedlife.net/u/Mk4_30R_Ban)\ **Post date:** [December 3, 2009, 8:35am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/9 "2009-12-03T08:35:31Z")
> [@The Justice System...](https://forums.speedlife.net/t/the-justice-system/26715/29): > > might just be better to get a new one. Make the bad one a nice book end or paper weight sounds like a brilliant plan… eliminates the question of whether it will become a problem or not. ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 3, 2009, 8:45am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/10 "2009-12-03T08:45:03Z")
Yeah probably going to have to. I’ll just use it as a core for a rebuilt one. ---
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [December 4, 2009, 7:47am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/11 "2009-12-04T07:47:00Z")
How about weld the hole closed, grind it off flush again, drill, tap back to M12 then use new crush washers to seal it up? ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 4, 2009, 7:49am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/12 "2009-12-04T07:49:12Z")
Well I wont be using crush washers again with the conversion lines I have to use. I’ll have to look at the caliper again and see what I can do. Maybe I’ll take a picture of it as well. ---
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [December 4, 2009, 7:53am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/13 "2009-12-04T07:53:38Z")
yeah a pic can help. If there is enough metal to helicoil it I am sure it will be fine. Just used red loctite for the coil into the caliper, that will seal it and hold it perminatly. Pluss the steel helicoil will give you a better grip on the bolt/line your going to install after the fix. ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 4, 2009, 7:59am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/14 "2009-12-04T07:59:31Z")
> [@Vid of JuicedSS representing.....?](https://forums.speedlife.net/t/vid-of-juicedss-representing/26768/3): > > yeah a pic can help. If there is enough metal to helicoil it I am sure it will be fine. Just used red loctite for the coil into the caliper, that will seal it and hold it perminatly. Pluss the steel helicoil will give you a better grip on the bolt/line your going to install after the fix. Do I have to tap threads to put the helicoil in? I never used helicoil before, I never liked the idea of it, doesn’t seem strong enough. But in this case it might be okay. ---
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [December 4, 2009, 8:09am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/15 "2009-12-04T08:09:09Z")
Yeah, it has its own tap. you drill it out bigger than the fucked up threads, tap it for the coil then spin the coil in with some loctite. But then you ask your self, why not tap it for a bigger banjo or bolt or what ever an use that instead of the coil. Well the coil is steel and wont strip back out as easy as aluminum will. ---
**Author:** ![Wayne64SS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wayne64ss/32/6365_2.png) [@Wayne64SS](https://forums.speedlife.net/u/Wayne64SS)\ **Post date:** [December 7, 2009, 9:39am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/16 "2009-12-07T09:39:48Z")
i don’t think a heli-coil is going to work for a banjo bolt application ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 7, 2009, 9:43am UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/17 "2009-12-07T09:43:19Z")
Thanks Wayne. I’ll just get another caliper. ---
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [December 7, 2009, 1:49pm UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/18 "2009-12-07T13:49:37Z")
I dunno, i dont see why not though. as far as threads are conserned a bolt is a bolt. doent matter if it has a hole going through it. lol How much are the calipers for that beast? ---
**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\ **Post date:** [December 7, 2009, 1:55pm UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/19 "2009-12-07T13:55:30Z")
Like $70 each +core. Not bad I guess. ---
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [December 7, 2009, 1:56pm UTC](https://forums.speedlife.net/t/stripped-caliper-threads/248799/20 "2009-12-07T13:56:34Z")
yeah thats ok. I dunno man… JBWELD is boss… go at it. lol