88 740 GLE Brakes

BrickBoard Archives

The files contained in this listing have been automatically archived from the active forums. Because the vast majority of posts are now in one place, this archive is considered legacy. You should use the SEARCH feature OR choose your topic and select date tabs within the forum you choose.

88 740 GLE Brakes[ALL/1998] posted by Arrwin on
Wednesday, 19 November 1997, at 12:18 a.m.

Hey everyone,

I own an 88 740GLE and I have a problem with the front brakes. I had the rotors changed about a year ago and since then they've been getting warped about every 3 to 4 months. When that happens, it wears out my pads, so then I would have to replace the pads and the rotors. I did have the driver side caliper replaced after getting the new rotors. Could it of been a bad rotor or bad caliper? Can anyone help? Thanks.

- Arrwin

Re: 88 740 GLE Brakes[ALL/1998] posted by orson on
Sunday, 23 November 1997, at 10:21 a.m.

I am not aware of a way that a bad caliper can cause rotor warping. My first suspicion is over-tightening of the lug nuts/bolts. This can easily cause excess rotor run-out that would ultimately result in warping. Make sure that the nuts/bolts are tightened to Volvo spec.

Re: 88 740 GLE Brakes[ALL/1998] posted by abe crombie on
Sunday, 23 November 1997, at 10:45 a.m.

It is critical on cars with detachable rotors (hubs stay, rotors come off) that the hub face is clean and that the rotor is installed where the runout is lowest. Your hub will have some side-to-side runout and the rotor will have the same. If you install the rotor and check the runout, then remove it, move it one lug position, and then recheck runout. Do this until you find the position that yields the least side-to-side runout. When this is not done many cars (Volvo 700/900 series being one of these) will transmit the wobble of the rotor when brakes are applied to the steering system. This may not happen at first as the rotors will wear more in spots during light braking and then the irregular rotors will cause this steering shake.

Re: 88 740 GLE Brakes[ALL/1998] posted by Arrwin on
Sunday, 23 November 1997, at 10:28 p.m.

Abe,

Thanks for your advice on the 740 brakes.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.