Help! Cross Threaded FCAB Bolt

[Titaniu//M]

Hi all,

I was finishing up a DIY oil pan job, and was reinstalling the driver side FCAB when one of the bolts went in slightly crooked (by hand). I backed it out immediately, but it seems that I cross threaded the first 3 or so threads in the chassis where the FCAB mates up. I ordered a thread chaser kit, and the chaser seems to follow the crossed threads, not the original ones. Should I continue with a tap, or admit defeat, put the car back together and bring it to a shop? Also, can the car be driven with only one bolt holding the FCAB on?

Thanks!

[Icecream]

Hi all,

I was finishing up a DIY oil pan job, and was reinstalling the driver side FCAB when one of the bolts went in slightly crooked (by hand). I backed it out immediately, but it seems that I cross threaded the first 3 or so threads in the chassis where the FCAB mates up. I ordered a thread chaser kit, and the chaser seems to follow the crossed threads, not the original ones. Should I continue with a tap, or admit defeat, put the car back together and bring it to a shop? Also, can the car be driven with only one bolt holding the FCAB on?

Thanks!

I thought I did this to one of mine but a little finaglling and all is good, it is hard to cross thread these tbh. The thread chaser is a good tool (if you bought a high quality one) and should fix it. I would get the FCAB mounted and centered with the good bolt and then carefully try again. When chasing, you will feel some resistance and it may seem like it is crooked at first but it should straighten out without much force. The handle on the chaser should give you sufficient torque, i would probably avoid putting a big wrench on it.

Also, use a wire brush or metal pick to clean the threads inside, there may be metal blocking the threads.

[WOLFN8TR]

Try this method, It’s easy and it works.

[heinzboehmer]

Same experience as icecream.

OP try attaching the FCAB bracket with the good bolt and then using it as a guide for the second one.

[Titaniu//M]

Thanks for the input guys, I'll try this tomorrow when I'm more clear headed