[Shotimes] BRAKE PROBLEMS (sorta long, but an easy read!)

[Bill Murray]

I can't help you out on most of your issues, but I'm pretty certain the
ebrake spring on the caliper is stiff enough to return the caliper to
the off state.  I've removed the spring before, and trying to get it
back on is not an easy task by any means.  You might try and replace the
front cable, or try adjusting where the front cable meets the rears.  I
have a problem with the forward cable hanging too low, and I think it
might be stretched or not properly taught with the 2 rear cables.  I
also have a problem with the RR p-brake not engaging, so my course of
action it going to be replacing all 3 cables, since I believe they are
the originals.  

I don't have any ideas for the fronts, but I am interested to hear what
others may say.  I've never had front brake issues on my 2 92s or my 93,
other then seemingly frequent pad changes.  I use the brakes a decent
amount though.  Hopefully I won't have to deal with these brakes much
longer anyway, I'll be upgrading soon.

Bill Murray

> -----Original Message-----
> From: Jim Koper [mailto:jkoper@frankgates.com] 
> Sent: Tuesday, February 24, 2004 4:56 PM
> To: shotimes@autox.team.net
> Subject: [Shotimes] BRAKE PROBLEMS (sorta long, but an easy read!)
> 
> 
> Hello all,
> 
> I have a 92 SHO with 141,000 miles, several BRAKE-RELATED ISSUES.
> 
> FRONTS: both are dragging. I already replaced the flex hoses 
> and calipers
> about 1.5 to 2 years ago (Wagner rebuilts). Why do they go 
> bad (stick) so
> soon? Any remedies I am missing? I bleed the brakes every year in
> preparation for the convention, so old brake fluid would not 
> be a factor in
> the 'return' of the brakes. MPG and performance are obviously 
> down--hate
> running the car like this, as the engine is working much 
> harder than it
> needs to. I cleaned and regreased the fronts, but it didn't make a
> noticeable difference.
> 
> If the pins have even wear marks (a series of shinier rings 
> around the pin),
> do they need replacing or just cleaned and lubed?
> 
> 
> REARS: After about a year of NOT using the e-brake, I applied 
> it last week.
> (I know the e-brake adjusts the rear pads as they wear, but I 
> didn't want it
> freezing up in the winter.) Big mistake. I smelled burnt pads 
> within a few
> miles.  I pulled the wheels to check it out.
> 
> Applying and then 'releasing' the e-brake causes the RR 
> caliper to 'lock up'
> (the return spring on the caliper doesn't return caliper to 
> the 'e-brake
> off' position. I use a pry bar to return the lever to its 
> natural position.
> Sound familiar?
> 
> The LR e-brake cable does pull the caliper lever--however, I 
> can still spin
> the rotor freely!! How would THAT happen? The pads and rotor 
> seem to be
> wearing, so the hydraulic portion of this work OK.
> 
> BTW, I replaced BOTH rear cables 3 years ago. Moisture seems 
> to get in at
> (1) the end near the caliper and (2) where that clear plastic 
> sheathing
> surrounds the coiled cable (middle of the entire cable, near the rear
> control arms).
> 
> Any way to recondition the e-brake cables? They are not that 
> old! I've tried
> PB blaster, a bit of heat, silicone spray, lithium grease on 
> the cables.
> 
> Have any of you found the front release cable (connects to 
> the interior
> release handle) to be faulty?
> 
> Are the return springs on the rear calipers too weak/bad 
> design and has
> anyone modified them? It seems if they were of a higher 
> tension that they
> could keep the e-brake cable functional.
> 
> What do you guys and ladies do to fix such problems (or 
> better yet, prevent
> them from happening in the first place?
> 
> Is the only real solution to replace all four calipers? The rears were
> replaced 3.5 years ago (new pins and boots last year).
> 
> Would replacing the MASTER CYLINDER solve the fronts 
> dragging? Anyone BTDT?
> 
> I am fed up with having to look at something on this car every other
> weekend!! I'd like to DRIVE the car for a change!!
> No, I won't trade it for anything else--yet.
> 
> Thanks for your input.
> 
> Jim Koper
> 92 red/black
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