Real time troubleshooting help

[Anvil]

I have a 1997 80. I did a complete brake overhaul in September... new oem rotors and calipers, master cylinder, and EBC pads. Last night I came to a stop and heard a very LOUD grinding sound from the front right. I assumed a brake pad separated and the rotors was destroyed. Something was in a bind when I pushed the brake pedal. I limped the 80 home using the parking brake and downshifting. The Cruiser dives fine as long as the brake pedal is not depressed.

Pulled the wheel this morning... rotors and pads look great! I'm baffled... what should I check next?

Any advise is much appreciated! Thank you!!!

 

[voodu3]

Check your caliper bolts.

 

[Anvil]

Check your caliper bolts.

You sir should win a prize!! The bottom caliper bolt is missing...

Thank you and thank MUD!!

 

[Anvil]

Anybody know the size and pitch of the bottom caliper bolt?

 

[Mtntopper]

Anybody know the size and pitch of the bottom caliper bolt?

Both caliper bolts are identical.

 

[flintknapper]

Anybody know the size and pitch of the bottom caliper bolt?

12mm x 1.25 pitch x 40mm long.


Common problem. Anytime you can back up and not hear the noise, but pull forward and get a grating sound (caliper shifting) that is usually the problem.

OEM parts (bolt and washer)

Bolt: 90101-12144
Washer: 90201-12452


In a pinch....you can use one of the tow-hook bolts and add a couple of washers (bolt is a bit longer). Same bolt size and pitch otherwise.

 

[jonheld]

Anybody know the size and pitch of the bottom caliper bolt?

Front caliper bolts: 90101-12144
Front caliper bolt washers: 90201-12452

 

[Anvil]

Just want to thank you guys for your help! New bolts have been ordered along with other things.

Sorry for the slow response... spent Christmas day in the ER getting stitched up.

Thanks again!!!

 

[Spdstr280Z]

Ouch, hope you are OK. On the new ones, make sure you torque to spec, and maybe a bit of Loctite. Loctite will lubricate while you are tightening, so you can reduce the dry spec torque a bit. I think they say 15-20%,. Verify that.... Or a philosophical debate on thread lockers and torque may begin with the next few posts.

Jason