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Stripped Thread on Brake Caliper Bleed Screw seat


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I'm in the process of replacing the original (rusty) bleed screws on all the callipers on my 2003 986.

 

Unfortunately, whilst trying to carefully remove one which was really rusted, the bleed screw came out in one piece but it would appear that some of the thread within the caliper itself has been damaged.

 

Grateful for advice on whether or not rethreading is feasible, and the tap size needed.

 

I didn't see anything like this covered under the suspension/brake sub-forum.

 

Thank you.

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55 minutes ago, wizard said:

I'm in the process of replacing the original (rusty) bleed screws on all the callipers on my 2003 986.

 

Unfortunately, whilst trying to carefully remove one which was really rusted, the bleed screw came out in one piece but it would appear that some of the thread within the caliper itself has been damaged.

 

Grateful for advice on whether or not rethreading is feasible, and the tap size needed.

 

I didn't see anything like this covered under the suspension/brake sub-forum.

 

Thank you.

 

You may be able to do it with an appropriate threaded insert as I would now not trust the original threads to hold the nearly 2,000 PSIG pressures these things see by just cleaning up what is left.  And when you install the new ones, please use an anti seize compound (we use high temperature nickel base for this application) on the bleeder threads.

 

The original bleeder thread are 10mm x 1.0mm pitch.  Good luck!

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