ljsimp

You can remove the TCT then bring it to the hardware store to match up the correct size bolt, washer, and nut. I have a picture posted what it should look like. Basically all the bolt/washer/nut combo does is retract the piston back in and hold it from going back out. This way you can put in a cotter pin to hold the piston.

-L

Billman250

5MM X .80 bolt

-5MM is the diameter of the bolt threads.

-.80 is the pitch, In threads per mm. many metric bolts have different pitches for one bolt size (diameter)

Lastly, there's length. I would guess 50-70mm long for this application.

Some bolts are described as 5MM X 70MM. The pitch is not mentioned. It is however very important.

Saki GT

Thanks - I'd rather have everything I need prior to pulling the part out.

ljsimp

Yea good point Thx billman as always. I should have known this working in a hardware store all through high school lol but yea that was a decent time ago.

-L

Chris Stack

I want to do mine, going to buy a HF blast gun, but what did you guys do for a cabinet? I really don't want to pay $100+ for a crappy HF blasting cabinet, is this something you guys just did outside? Did you rig something up? Any tips?

alSpeed2k

I see most responses on this post are from AP1 drivers or early AP2s. Does anyone know if this is also a problem on AP2v2s?

Billman250

Bad TCT can affect all s2ks.

alSpeed2k

^Thanks Billman. If a car doesn't have a bad TCT yet, should one sand blast the part as preventive maintenance?

Saki GT

Just did it outside.

Billman250

Sears sells a very simple yet effective sandblaster. Used outside, but you need a compressor.