Mk1 MX5 1.6 brakes
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Discussion

1st_petrolhead

Original Poster:

1,431 posts

262 months

Tuesday 31st May 2011
quotequote all
The pedal travel is a bit long and the brakes lack bite. They work in a fashion.

The previous owner said he had r[laced the front pads with std Mintex pads.

Could the long travel (its not air as the pedal is firm with the engine off and they don't pump up) be down to old brake fluid ie needs replacing.

What do people here use pad wise? I use Mintex 1144s on the Caterham which work well.

skinny

5,269 posts

259 months

Tuesday 31st May 2011
quotequote all
you can get M1144's on teh mx5 too, i found them to be fantastic pads. however, they are expensive on the rear.

won't hurt to flush the fluid, i do mine every year - at least that eliminates it as a potential problem.

MX-5 Lazza

7,954 posts

243 months

Tuesday 31st May 2011
quotequote all
Sounds like fluid to me though it could be brake lines need replacing.

If it's a road car then standard Mazda pads are well up to the job. They will even take light track use though if it gets used on track much the Axxis ULT or EBC Yellowstuff (I prefer the Axxis) are a good upgrade. Mintex 1144 are very good but a bit more expensive and not that much better.

SimonV8ster

12,926 posts

252 months

Tuesday 31st May 2011
quotequote all
He might have replaced the pads but what about the calipers themselves ? They suffer from sticking calipers and sliders so might be worth a general inspection ?

1st_petrolhead

Original Poster:

1,431 posts

262 months

Wednesday 1st June 2011
quotequote all
Calipers were replaced last year both front and rear. Thinking about it one would assume the brakes would have been bled then as well

Edited by 1st_petrolhead on Wednesday 1st June 08:39

MX-5 Lazza

7,954 posts

243 months

Wednesday 1st June 2011
quotequote all
Could be a leaky brake cylinder then. Try (with the engine running) pushing the brake pedal and holding it down for a while. If it slowly sinks down then the cylinder is knackered. It should actually feel like it's trying to push your foot back up as your leg weakens...

1st_petrolhead

Original Poster:

1,431 posts

262 months

Wednesday 1st June 2011
quotequote all
MX-5 Lazza said:
Could be a leaky brake cylinder then. Try (with the engine running) pushing the brake pedal and holding it down for a while. If it slowly sinks down then the cylinder is knackered. It should actually feel like it's trying to push your foot back up as your leg weakens...
Possible but would this only manifest itself with the engine off as well as the padal is hard?

MX-5 Lazza

7,954 posts

243 months

Wednesday 1st June 2011
quotequote all
You can apply more brake pressure with the engine running as you get servo assistance. Without the engine running you probably wouldn't be able to push the pedal hard enough.

Air in the fluid is still the most likely cause imo though. Just because they had to bleed the brakes to fit new callipers doesn't mean they did a good job of it wink

Mazdamender

173 posts

187 months

Wednesday 1st June 2011
quotequote all
MX-5 Lazza said:
You can apply more brake pressure with the engine running as you get servo assistance. Without the engine running you probably wouldn't be able to push the pedal hard enough.

Air in the fluid is still the most likely cause imo though. Just because they had to bleed the brakes to fit new callipers doesn't mean they did a good job of it wink
Agreed, sounds like air in the system, most never do the brakes the right way, be it pad and disc change(strip and rebuild), or calliper changes, the number i have had to put right,and show owners how to do it right over the years is unbelieveable,but they get it once shown.
As Lazza says dont take it for granted that the last owner or garage fitted them up correct with the right greases ect and bled right, including the handbrake setting.
M-m

CaptainSlow

13,179 posts

236 months

Thursday 2nd June 2011
quotequote all
Mazdamender said:
Agreed, sounds like air in the system, most never do the brakes the right way, be it pad and disc change(strip and rebuild), or calliper changes, the number i have had to put right,and show owners how to do it right over the years is unbelieveable,but they get it once shown.
As Lazza says dont take it for granted that the last owner or garage fitted them up correct with the right greases ect and bled right, including the handbrake setting.
M-m
I plan on doing mine soon. Any chance of some tips please?