| Author | Message | ||
| Malcolm West (Ferrari_uk_tech)
Junior Member Username: Ferrari_uk_tech Post Number: 117 Registered: 7-2003 |
Richard, Whilst you have the brake pads out to apply the anti-squeak grease, put some abrasive paper on a flat surface and lightly "rough-up" the pad surface, also "rough-up" the rotors enough to remove any glazing. MW | ||
| Steve Magnusson (91tr)
Intermediate Member Username: 91tr Post Number: 2100 Registered: 1-2001 |
Richard H. -- Welcome (but I cyber-slap you for not starting a new thread -- at least there's "348 brake" in the title  ). Do a search on "goop 348 brake" (AND mode) to get some previous discussion/options. One interesting thing I've noted over the last 2 years on my TR is that it's gotten less prone to squeal as the pad lining thickness has come down (must be giving a different acoustic "tuning" somewhere in the assembly). | ||
| Ernie (Ernie)
Member Username: Ernie Post Number: 791 Registered: 11-2001 |
Richard, there is a coating that you can put on the back of the break pads to quiet them down. You can find it at just about every auto parts store. Just ask them for some "break quiet" and they will point you in the right direction. This should shut them up, without having to get new ones. | ||
| Richard Hurl (Richardh)
New member Username: Richardh Post Number: 1 Registered: 9-2003 |
Can anybody out there help? . . . with horrendously squeaky brakes on my 1990 348TS. The squeak starts after the brakes have warmed up, beginning with a slight squeak and rising to an almighty shrieking, even at low speed. Stamping hard on the brakes stops the noise but it's unrealistic to drive at slow speed and to stamp on the brakes. We inevitably draw attention driving our cars, but this is VERY embarrassing and acutely annoying for me just as a driver. Any ideas that don't involve completely replacing disks, pads etc. I may own a Ferrari but I need to run it on a tight budget!! | ||
| James I. Movich (77_308gt4)
New member Username: 77_308gt4 Post Number: 24 Registered: 2-2003 |
man, i love this place! | ||
| Jeff B. (Miltonian)
Member Username: Miltonian Post Number: 562 Registered: 12-2002 |
Your symptoms can also occur when you have a flexible hydraulic brake hose starting to collapse internally. Give your hoses a visual check, look for signs of swelling and cracking, but the problem would not really be visible from the outside in most cases. | ||
| James I. Movich (77_308gt4)
New member Username: 77_308gt4 Post Number: 23 Registered: 2-2003 |
Ernie, this sounds more along the lines of what i already suspected to be the cause. whatever the physics of returning the piston to the "ready" position must be at fault. thanks for the note. | ||
| Ernie (Ernie)
Member Username: Ernie Post Number: 790 Registered: 11-2001 |
James, what it sounds like is that your have a piston in the caliper starting to freeze up. This happened to a friend of mine in a non-Ferarri. If I remeber correctly what happened is the seal was going bad causing the piston to loose the correct preasure. When the break peddal was depressed the piston would squeeze the breaks properly, but because of the the incorrect seal it wouldn't allow for the piston to return to the resting possion in the caliper. So basicly what is happening is that the break is being constanly applied. What he had to do was replace the caliper with a new one and the problem was solved. Now I'm not sure if this is the case with your front breaks, but the symptoms sound the same. | ||
| Rob Schermerhorn (Rexrcr)
Member Username: Rexrcr Post Number: 798 Registered: 11-2002 |
Not exactly an adjustment, just simple maintenance. If you own basic tools and know how to safely lift and support your car, remove the wheels, then you can do the inspection, and probably the entire repair. Do what Malcolm suggests. If what he wrote doesn't make sense to you, get a friend who knows brake systems to help you or ask here for a recommendation for a technician or shop in your area. Ask in a new thread. There is only an 'adjustment' in regard to the rear parking brake, not on the front. Have fun, Rob | ||
| James I. Movich (77_308gt4)
New member Username: 77_308gt4 Post Number: 22 Registered: 2-2003 |
is there some form of adjustment? | ||
| Malcolm West (Ferrari_uk_tech)
Junior Member Username: Ferrari_uk_tech Post Number: 97 Registered: 7-2003 |
Remove the wheels and the brake pads, check to see if the pads move freely in the brake calipers and test if the pistons in the calipers are free. Be careful when doing this - remove the brake fluid resevoir top and place some rags around the neck as when you depress the pistons the displaced fluid could spill out, it's also a good idea to test one piston at a time. MW | ||
| James I. Movich (77_308gt4)
New member Username: 77_308gt4 Post Number: 21 Registered: 2-2003 |
Not yet...have had no chance, but yes, i agree...something is quite wrong. i have never had this occur with any car. just wondered if anyone has had similar issues/problems | ||
| Rob Schermerhorn (Rexrcr)
Member Username: Rexrcr Post Number: 797 Registered: 11-2002 |
Did you take the wheels off and inspect the brakes? Something is quite awry. | ||
| James I. Movich (77_308gt4)
New member Username: 77_308gt4 Post Number: 20 Registered: 2-2003 |
i have some drag in my front brakes that gets worse as they heat up. more on one side than the other. i searched the threads, to no avail. it will get to the point of limiting free roll of the car. on a recent, very hot day, i could smell them, so i stopped for a cold one while they cooled off. any suggestions? |