Tapping a hole in the sub-frame

[Shmed]

I have managed to shaft one of the threaded holes in the rear sub-frame (the one that holds the lower suspension arm to the sub-frame) and wondered if anyone might know what thread tap I need, and if there is anything else I could do? I have only mashed the first thread or so so the bolt won't bite.

Having looked atthe bolt, it seems to be an M14 x 1.5 thread. Can I just run a tap through the first couple of threads? I don't want to have to replace the sub-frame.

[roadwolf]

I can't see why not. You would be better running the tap all the way through to make sure all the thread is clear.

[Shmed]

I was just a bit concerned that I might land up with no thread at all if I were to cut the wrong thread.

[LimeyMk1]

Can you get the tap in at the good end of the captive nut? Then the tap will follow the good threads and straighten up the few knackered ones.

[Shmed]

That was my first hope, but such is life, no I cant. I must remember that when a bolt doesn't bite, it is because it isn't lined up, not that it needs 'persuading' with a hammer

[Shmed]

Phew, the tap was successful and the suspension arm is back on