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Old 09-28-2012, 01:38 AM   #1
duck_tape187
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Default HELP!!! Pulled out threads on block while installing coolant crossover pipe. Options?

While installing coolant crossover pipe on my engine (2.5) after head gasket job, one of the bolts wouldn't get tight and when I removed it the threads from the block came with it. What are my options here? Motor is out of the car and I'm now at a stand still on my build.

Any advice would be great!

Thanks,

Chris
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Old 09-28-2012, 01:43 AM   #2
jrodm12
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Retap it and helicoil all u can do. Maybe put a stud there if all else fails.
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Old 09-28-2012, 01:49 AM   #3
duck_tape187
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Anyone ever use this? permatex thread repair
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Old 09-28-2012, 02:52 AM   #4
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get a real machinist to re-tap it......it's not the end of the world... but it suuuuuuuuucks.


A real machinist and get it done no probs.
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Old 09-28-2012, 09:44 AM   #5
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Quote:
Originally Posted by duck_tape187
Anyone ever use this? permatex thread repair
Interesting... Everything else permatex makes is top notch, this might be worth a shot if you're desperate.
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Old 09-28-2012, 09:47 AM   #6
EdgeAutosport.com
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I would just play it safe and re-tap with helicoil. Better to do it right now rather than taking the chance that you may have to do it again...
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Old 09-28-2012, 09:51 AM   #7
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helicoil.

it is what it is... it sucks... but oh well.
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Old 09-28-2012, 11:49 AM   #8
duck_tape187
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Well, I've decided to go the helicoil route. Does anyone know the thread pitch of these bolts? I'm guessing 1.0 pitch but i dont have a pitch gauge. and the 1.0 nut I threaded it into felt a little loose. Also I wasn't able to even find a 1.25 helicoil set, so my guess it that it's 1.0 pitch
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Old 09-29-2012, 01:23 PM   #9
SubieWolfSti
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Go to NAPA auto parts, thats where i got mine. They are pricey but thats one place in case you cant find them in your regular auto parts stores
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Old 09-29-2012, 05:02 PM   #10
gutie04
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Any auto parts or hardware store can tell you what the thread pitch is. Just make sure to get the right depth Helicoil or practice at the 2 coils one hole method a few times because it can be a biotch.
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Old 09-29-2012, 05:06 PM   #11
UK-Wagon
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its a 6mm bolt, cant remember the pitch though. I want to say its 1.25 though, if i was at the shop today I could tell you, but im not.

you didnt need to take the crossover off to do the HG's though..... unless you were just changing the seals for good measure. Still sucks
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Old 09-29-2012, 05:10 PM   #12
Hondaslayer
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M6x1.25

Happens pretty frequently and a helicoil will work fine. If you want to be a baller you can get some of those pimptastic threadserts, but I'm always leery about drilling into the block.
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Old 09-29-2012, 08:06 PM   #13
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Quote:
Originally Posted by UK-Wagon View Post
its a 6mm bolt, cant remember the pitch though. I want to say its 1.25 though, if i was at the shop today I could tell you, but im not.

you didnt need to take the crossover off to do the HG's though..... unless you were just changing the seals for good measure. Still sucks
I was changing the seals under the crossover pipe.

I did drill it out and helicoil it and it worked good. Thanks everyone for the help!
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