texas_maverick

I'm replacing the front pads and rotors on my 2005 997.1. I've looked everywhere but couldn't find the torque spec for the 10mm brake line bracket bolt (not the caliper bolts). Does anyone have the data? I'm also unclear as to whether this bolt really needs to be removed to get the caliper off.

Steph1

texas_maverick

This is gold! Thank you very much!

Steph1

No prob. 👍

Petza914

I don't think that's right. That torque spec of 51 ft lbs is way too much for that little 10mm bolt that I think you're referring to. Also note that in the left column is says that's a 10mm hex (like an allen bolt). Looks to me like that spec sheet is for a newer car that has radially mounted calipers (mounting bolts through the top of the caliper) not our axially mounted calipers (through the side of the caliper). 51 ft lbs is too much for that 10mm head bolt screwing into an aluminum upright. Should be more like 15 ft. lbs, or for that bolt, "tighten by feel until snug" is my recommendation.

jeebus31

100% agreed, 51 ft lbs is way too much. For ref the T45 or T50 giant brake calipers bolts are 63 ft lbs... You will snap the bolt. Just snug it up.

Steph1

This is what I downloaded from Pelican parts and was going to use when I do my suspension next month !!!! geez! The way I see it, is if one figure doesn`t make sense, chances are...…

jeebus31

Try this. 7.5 ft lbs sounds appropriate for the wheel speed sensor/brake pad sensor bracket nut/bolt (I think this is what you're referring to?)

Petza914

Much better number.

Petza914

You have the link where you downloaded that from?

Steph1

I'll check but took a screenshot of it when I recently traded my phone to avoid loosing it. Now if it's totally wrong, maybe I should have lost it. Damn.

Steph1

I'll check but took a screenshot of it when I recently traded my phone to avoid loosing it. Now if it's totally wrong, maybe I should have lost it. Damn.
Edit... Couldn't find on the site, but by Google searching PORSCHE 997 SUSPENSION TORQUE SPECS. and choose image, it is right there on top.

OKB

no thats not right. you are saying a 10mm head. thats not a 10mm bolt.
you probably need 7 lbs or so.
You have to identify the bolt size, the reference to a torque spec chart.

morefun

FWIW It’s really easy to cross thread that bolt if there is any lateral load by the brake line on the bracket. 7.5 ft.#s should be the correct torque spec,

workhurts

Yes. Very very easy to cross thread. I did and had to extract and tap. Don’t do that.

Also, hand tight on the torque.