Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

Brake Problem

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

Post Reply
Posts: 269
Joined: Tue Dec 17, 2002 4:44 pm
Location: Buxton Qld

Brake Problem

Post by Le0n »

My LN130 Surf seems to be running out of vacuum if I have to give it 2 0r 3 quick brake applications. Checked the lines and can't find any leaks.

Where to look next. The Alternater vacuum pump or the booster?
Beer is the living proof that God loves us and wants us to be Happy.



Cheers Leon...
Posts: 6021
Joined: Sat Feb 15, 2003 11:01 pm
Location: Shed.

Post by dumbdunce »

that's pretty normal. if it bothers you, you can fit a vacuum reservoir between the brake booster and the vac pump. blipping the throttle (clutch in) while braking can make some extra vacuum quickly, but at or near idle it take a few seconds to pull the booster down to reasonable vacuum.

the booster does not improve braking performance, it just reduces leg effort, si if you run out of vacuum you just have to push MUCH harder and you can get more or less the same braking effectiveness.
Free air locker to the first 20 callers!
Posts: 269
Joined: Tue Dec 17, 2002 4:44 pm
Location: Buxton Qld

Post by Le0n »

It wasn't doing it yesterday, pulled the booster out and had it tested. OK.
Pulled the Alternater out and getting it serviced with a near new vacuum pump fitted.

It got soo every time I used the brake the low vacuum brake light came on. Bit of a worry driving like that. :oops:
Beer is the living proof that God loves us and wants us to be Happy.



Cheers Leon...
Posts: 269
Joined: Tue Dec 17, 2002 4:44 pm
Location: Buxton Qld

Post by Le0n »

Fitted the new Vacuum pump and still got the problem. Managed to trace the leak and it seems to be in the smaller line which goes under the throttel body. Maybe this line goes to the EGR valve. I've blocked it off for the time being to see how it goes. Will see about fitting a extra vacumm tank to the booster.
Beer is the living proof that God loves us and wants us to be Happy.



Cheers Leon...
Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests