Pfc. Parts

I'm finishing up a rebuild of my front calipers and I hit a WSM problem. On page 221 the torque specs are quoted for the brake line to caliper as 14 nm (10 ftbs). I'm pretty sure this can't be right since the line spins at this torque and it doesn't crush the washer.

Anyone have advice?

Thanks,

ammonman

If they are hollow bolts (Banjo bolts) that join the hose on front four-piston fixed calipers the hollow bolts get 12 ft/lbs (144 in/lbs). The rear connections on four-piston fixed calipers get 10 ft/lbs (120 in/lbs). If they are floating calipers the hose connection to the caliper gets 10 ft/lbs (120 in/lbs). Floating Frame caliper hose connections get snugged at 1 ft/lb. All the brake hard line connections (master cylinder, brake hose, etc.) get 8.8 ft/lbs (106 in/lbs).

Mike

Pfc. Parts

Hi Mike, that's pretty much exactly what the WSM states, but it's not working for me. At 12 ft/lbs on the banjo bolts I'm left with a brake line I can move by hand and not enough compression to seat the crush washers. There's no way this spec can be right near as I can tell.

Pfc. Parts

Maybe I should mention I'm replacing the stock rubber lines with braided stainless from Goodridge. They gave me new banjo bolts. I should probably check the threads, they could be wrong.

Pfc. Parts

Mike -

It was the bolt. The banjo bolts Goodridge ships with their 928 brake lines aren't compatible with the stock calipers. When I put the originals back in they torqued correctly to specification.

Be warned: Goodridge brake parts aren't compatible with the '85 928 calipers.

ammonman

Good to know and glad you got it sorted out. My next question was going to be whether you had the lines oriented correctly at the caliper and not on top of the anti-rotation lip.

Mike

Pfc. Parts

I did have them oriented and simply replacing the Goodridge bolt with the stock bolt cleared the problem. There's a shoulder on both bolts, the one on the Goodridge keeps it from fully seating into the caliper at the correct torque value. I dread thinking about what might have happened if I hadn't been using a torque wrench.

This is the second incompatibility I've found with these parts. The other end of the line doesn't have a "flat" on it to allow it to penetrate the mounting bracket inside the wheel well. On the advice of others I modified the bracket so it will now accept a round fitting. I'm beginning to worry I made the wrong decision there but expect it's correctable in the event I need to back out the entire thing.

Thanks for your help,