Recurring Brake Issue

[DaveWA]

I have an issue with my brakes

1999 NB 10 AE

I put new carbotech pads all round 3 months ago

all ok until brakes began to feel that they were not releasing completely

adjusted rears all OK after 2 3 weeks, same issue has reoccured
starts off ok ends up feeling like I have 100 kgs extra in the boot

So far I have greased the slider pins and thoroughly flushed the brakes

any thoughts as to why this is happening

[Okibi]

Sorry can't think of an obvious reason unless it's a dodgy master cylinder, with the rears are you tightening the adjustment screw and then loosening it 1/3rd of a turn?

[manga_blue]

Have you had a look at this thread? http://mx5cartalk.com/forum/viewtopic.php?f=30&t=46321

[NMX516]

I recently had a similar problem, turned out that one of the front calipers had some corrosion in it. Had the two fronts rebuilt, problem solved.

[DaveWA]

thanks guys

looks like i have a bit of work in front of me

will let you know how i go

[DaveWA]

replaced the brake booster

issue solved

[geofiz]

Dave,

Glad to hear it is finally fixed. Was it the booster or the little rubber 'reaction disc' that goes between the pushrods from booster to M/C?

[DaveWA]

It was the Booster
Just working out some vacuum issues
And then I'll be back at the track
Work and family engements permitting
Cheers