Natasha 1 Posted April 9, 2006 I have just had a 405 master cylinder fitted to my car - it's a 4 output one but I beleive its an ABS version. Now the front calipers seem to be binding on ( after 10 miles of driving) I can only assume that this is the fault of the new master cylinder as things were fine beforehand. Has anyone else experienced this problem? Is there a 'fix' for this problem - or so i have to bite the bullet and buy a new non abs master cylinder? Does anyone have an aftermarket part number (not pug part number as i dont think they can cross reference them) that i can give to my local factors so I know i get the right one this time. Thanks Natasha Share this post Link to post Share on other sites
littlemike 0 Posted April 9, 2006 I read somewhere on here that you have to adjust (shorten) the bar that operates the master cylinder as it's set wrong for a 405 one (it's the little bar that you can see just inside the brake servo opening when the master cyliner's removed). Share this post Link to post Share on other sites
mi16nut 0 Posted April 9, 2006 Where's the Search Button???? See http://forum.205gtidrivers.com/index.php?s...opic=56414&st=0 The problem is the different end float on the rod that goes in the master cylinder. I put my 205 one back on for now; slightly long pedal, but otherwise OK. I'll attack the locknut on the rod & adjust it at a later date. Mark. Share this post Link to post Share on other sites
Foltan 0 Posted April 10, 2006 Yes! This happened to me! You need to adjust the servo push rod a little and itll sort it out fine! Share this post Link to post Share on other sites
Natasha 1 Posted April 12, 2006 Thanks for all the help - this is a job for superman (what I actually mean is my fiance Simon!!) Share this post Link to post Share on other sites
Phil 0 Posted April 18, 2006 I fitted my 406 one recently (which I think is the same as the 405 one?) and have had none of these problems, despite doing some very heavy brake testing! Maybe I have done something wrong but I didn't need to adjust anything. (Using GTi-6 calipers BTW) Share this post Link to post Share on other sites
mi16nut 0 Posted April 18, 2006 Phil, The 406 mc is 23.6 mm, the 405 that I have is 22.2mm. The problems we have encountered is due to the internal measurement & the lack of endfloat for the pushrod. The 405 version is @ 2mm shorter & that seals the system after a few miles, locking the brakes on. I don't know the measurements of the 406 version, so this may not be a problem. Mark. Share this post Link to post Share on other sites
