|
|
|
I can understand your explanation of the long travel caused by a damaged/failed flexi pipe.....but ...why is there no excessive travel when the engine is off ? The brake pedal has a firm to rock solid feel when pressed. The condition only happens after the engine is started. ie........ long pedal travel and a spongy feel I know the pedal goes down a little after the engine is running when the brakes are applied but there should still be a firm to rock solid feel. My car is a Lexus.........the only modification was the removal of the ABS system which was replaced with a 'normal' servo and master cylinder Is the master cylinder the same diameter as the original? I looked into this a while ago, and there's much more involved than you'd think.....
|
|
|
|
|
|
|
The original was the same as shown in this photo A combined ABS block with accumulator pump. Now look at the previous posts on page 1 showing my 2 attempts. The replacement was from a LS430 with its large diameter servo and its master cylinder with a 23.8mm ( 0.938") bore This should be ample,I hope, to get a good pedal feel and travel.
|
|
Last Edit: Dec 5, 2021 13:13:08 GMT by freespeech: extra photo
|
|
|
|
|
Yes, if a tester can spot it. A lot of MOT test bays run unassisted these days so it’s hard to spot issues like that on your own sadly. Depending on what year the Volvo is, it might be MOT exempt anyway This is one of the many reason why I believe mot exemption for older cars is a bad idea.
|
|
|
|
Rich
Club Retro Rides Member
Posts: 6,249
Club RR Member Number: 160
|
Soft brake pedal questionRich
@foxmcintyre
Club Retro Rides Member 160
|
|
Depending on what year the Volvo is, it might be MOT exempt anyway This is one of the many reason why I believe mot exemption for older cars is a bad idea. Yea, MOT exemption to some is seemingly exemption from minimum road worthiness standards. Not all cars will be maintained to a high enough standard to actually mean they are safe one year to the next. I haven't owned an exempt car, only tax exempt at the time, and even if I did I would still just happily pay to know that my vehicle had been inspected by another set of eyes once a year. People thinking it's a badge of honour to save themselves £45 a year. Not everyone sees it like that of course, not pointing any fingers anywhere, and some people are very sensible.
|
|
|
|
|
|
|
I've always thought that MOT exemption is a very bad idea and that the cost of the MOT fee is good value in terms of a thorough safety check over (if paying normal garage labour rates, I reckon it would be much more expensive).
Whilst two of my three cars are exempt, as and when they go back on the road, they will still be MOTed.
|
|
|
|
|
|
|
I've always thought that MOT exemption is a very bad idea and that the cost of the MOT fee is good value in terms of a thorough safety check over (if paying normal garage labour rates, I reckon it would be much more expensive). Whilst two of my three cars are exempt, as and when they go back on the road, they will still be MOTed. As I've said before, my local guys will do a 'safety check', IE an MOT without logging it on the system, another pair of eyes never hurts A roller brake test (assuming not 4wd) might identify the dodgy circuit too
|
|
|
|
|
|
|
May be worth checking that the pads are not stuck in the carriers, if they are that can cause longer pedal as the pads flex.
|
|
|
|