How to helicoil! A visual guide...sorta.

[ArchangelX]

Well, we had to helicoil two threads on both the turbo and the manifold itself for my RX-7. My friend, Tom (who most of you know already), who's a mechanic who works on and races in Formula Mirages and the like says it'll hold up really well. If it works for racecars, I imagine it'll work fine for my RX-7. After we helicoil'd it, it torqued down perfectly...so it seemed to work really well.

Here's a few photos of us doing some helicoil work on the turbos:

Grinding the stud off so it's flat.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01184.jpg

After grinding.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01187.jpg

Positioning the drill bit in the center.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01188.jpg

Drilling through the stud.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01189.jpg

The stud, after drilling through it. Definetly need a high quality drill bit for this.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01190.jpg

Putting the extractor in place (tap, tap)
http://img.photobucket.com/albums/v185/ArchangelX/DSC01191.jpg

After getting the stud out, we tapped the threads for the new helicoil. Keep in mind, we had to redrill the hole with the proper drill bit before this. I believe it was a 13/32.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01194.jpg

The new threads for the helicoil.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01195.jpg

The helicoil and tool.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01196.jpg

Screwing in the helicoil.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01197.jpg

The helicoil in place...you can see the little piece that you need to break off in the center.
http://img.photobucket.com/albums/v185/ArchangelX/DSC01198.jpg

Taaa daaa! All good, and it torqued down great! :D
http://img.photobucket.com/albums/v185/ArchangelX/DSC01199.jpg

A little bit of work...but man...it sure beats buying a new manifold.

[Devil Boy]

Good job!! I'm always replacing heli-coils at work because of the aluminum engine on our torpedos. Once you get the hang of it, it's a piece of cake. (having the right tools helps too)

I've never had to do it yet on my truck, and hopefully I won't ever have too.

[ArchangelX]

Yeah...that stuff saved me from having to rebuild the engine again. I can't imagine what it would be like if we didn't have helicoils. :faint:

[MasterFunk]

my whole carb is held together with helicoils. :retard4:

[ArchangelX]

Heheh. Apparently, good as new, huh? :D

[MasterFunk]

Heheh. Apparently, good as new, huh? :D

it seems to be OK, but I'd love to pitch it and throw on a 38/38 or some sidedrafts. :belokan:

[Latka]

1600cc engine on the '02? Or is it a 2000?

Some twin 40 DCOEs... mmm...tasty induction noise. :)

[MasterFunk]

1600cc engine on the '02? Or is it a 2000?

Some twin 40 DCOEs... mmm...tasty induction noise. :)


2000cc foo, don't ya know the numbering system? :abigael13:

2002= 2000cc/2-door, and in translation the slash turned into an &, thus 2000 & 2, just got switched to 2002. There were 1500s first, and 1602s, and 1802s, and 2000 tourings, and so on. but the 2002 was the lil one with the big motor. :belokan:

[ArchangelX]

I didn't know they made motorcycles in the 1802's. :hilarious:

[Chad89gt]

Mike, why'd you have to helicoil the broken stud? Were the threads messed up when you extracted the remains of the stud?

[ArchangelX]

Yepz. The stud pretty much disfigured the threads inside of the hole, but that was after the stud puller just wouldn't work on that little f'ing stud. The stud just broke in half. Pissed me off. That area is under high heat all the time, so it pretty much fused the thing together. Sucked azz.