heli coil size

[marvinmadman]

I need to heli coil the driver's engine mount. It's the two bolts that go through from the top into the mount on the engine. Hope that makes sense. What kit do I need to buy? I don't recall the size. Thanks

 

[89Mirageman]

Is there room to tap to a different size? This is either a 10mm or 12mm diameter bolt and the kit alone will be around $100. Better yet, just swap that mount out. I probably have one laying around here somewhere.

 

[marvinmadman]

$100? Lmao where you get yours at? I got a kit for $25. I found the size, 10x1.25

 

[1793]

What are you using marvinmadman? It's been a while since I looked, but I know the "Master Kit" ran about $100.

 

[marvinmadman]

A kit with just what I need. Tool, tap, and inserts.

 

[89Mirageman]

The kit I bought was around $80 for the 8mm 1.25 thread pitch over 5 years ago when I had some exhaust manifold studs that were broken/stripped. Like someone else mentioned though, this was the master kit with the bit and everything in a plastic case.
Glad you got it sorted either way.

 

[curtis]

Screw the helicoils

I had seen these timeserts before but never had to use them. I think main reason is because I don't use air tools, all fasteners are put in and started by hand and tighten by hand and then torqued. But anyway had to repair the holes in a transmission the other day for a slave cylinder on a friends go fast street car and used a timesert kit. I'll never fight a helicoil again. click me. Actual I was on the phone with John (boostx) and used a cheap cordless drill and a driver with just my right hand to do the entire operation. Things are magic. /ubbthreads/images/graemlins/worthy.gif Actually considering buying a kit and stepping up to 10mm on all the intake and exhaust studs on my head when it goes together.

 

[Jason G.]

+1 on Timeserts

 

[SleepinGVR4]

+3 on TimeSerts.

When I first came across timeserts I asked around, performance shops, garages... no one ever heard of them.

Go to my machine shop... what does he say? "Of course, its the only thing I use."

But my luck he doesn't have any metric ones.

I found a place online and was able to order a metric kit for the turbo bolt size. Not cheap mind you. And its only one size.

But now every time I break a turbo bolt, I just take the exhaust housing to my machine shop with the timesert kit and he fixes my threads for next to nothing.