Engine/Transmission (1998.5 - 2002) Has anyone seen this?

[BlitzkriegSSII]

I had an ARP 12mm stud snap in two pieces on me the other day.



I dont know what caused it to break. I was driving easy when it happen, luckily the one that broke was not under the valve cover. When it broke I heard it slam the hood. It even left a small dent in the hood.



I got the kit about a 1 1/2 years ago. I called up ARP and they sent me a new stud and want the broken one back so they could take a look at it. There customer service was great!



Here are a few pics of the stud.

 

[n7gxz]

That stud has been fractured for a long time. It was being held together by only about 40% of the material when it finally let go.



Kevin

 

[turbo torque]

D

Sorry for your hassles, do you know what they were torqued to, & how many times?

 

[BlitzkriegSSII]

They were torqued at 125 ft. lbs. I went through 3 cycles and then set on the 4th time. I also use the ARP lube that they send. It takes a while to set them up the first time. I also use a new Snapon electronic torque wrench that I had gotten just for that job.

 

[BILLVO]

I have heard from a few different people that the A1 studs resist corrosion better than the ARP studs which from what I have seen are always badly rust pitted. I also know of 1 engine where the stud rusted in and upon removal broke a chunk out of the rear corner of the block.

 

[JCyrbok]

Just spit balling here, but the stud looks very corroded and pitted. Could it have been bad stud to begin with or some kind of a leak that weakened it?



Just looks like it is in real bad shape for only being 1. 5 years old.



Just a thought,



J-

 

[BlitzkriegSSII]

sory about not posting for a while, i wasnt able to get to my computer.



Im not sure what caused the stud to rust like that. I did pop a head gasket about 10 months ago. But it only leaked oil out the very front of the head. When I pulled off the head I dont remember any rust being on any of the studs. The one that broke was beside the exhaust I dont know if the heat had anything to do with it or not.