Bultaco brakes

[jerry]

Can anybody give me some clues to improve the "performance" of my MK 3 Pursang brakes. I have nearly brand new linings (used twice) all linkages are either new or reconditioned, new front cable. The bloody thing just doesn't want to stop! I have tried laying it down and crashing into the scenery but I would like to be a little more sophisicated. Jerry

[Davey Crocket]

Dont ride so fast!!!

[Stan S]

Jerry try and get a longer actuator lever off a different model Bully. I had the same problem with my Mk7 360 and I fitted a longer lever(can't remember what model it was off) instant fix. The front brake is now fantastic. If you need the length let me know and I will measure mine.

Regards Stan.

[KB171]

Campberfield Brake an Clutch in Barrys RD  redone the linings on both my CR's , the old ones were like bakelite and sent me on some off track excursions as well,    They work now.
Cheers KB

[Hoony]

G'day Jerry,

so this Boaty has no anchors then.


What's the hub like? the trick is to match your linings to the hub so that maximum surface area is gained.

Further to KB's contact in Campberfield.  BGT in Dandenong can do same.

BGT Brake Services

Address:     Webster Street
Dandenong, VIC, 3175
   
Telephone:    03 9792 2806

[Mark Austin]

Hi Jerry,

There are no such things as brakes on a Bultaco... After many years of ownership, I finally figured it out.

Cheers,
Mark

[jerry]

Thanks for your advice guys. I'm drawn to your fix Stan because it seems a quicker (and possibly more cost effective) fix. Now I assume we are measuring brake lever actuators here Stan AKA Greg and I have measured mine at 70 mm from centre to centre. I'm keen to know how long yours is if you dont mind bending down and with your 6"(15cm) rule. I guess that may fix the front brake. Are you suggesting the same for the rear? Jerry

[Rosco86]

If you reckon the bulty isnt stopping don't ever ride a maico as your toes wear out!
Rosco

[Stan S]

Gday Jerry, my lever measured 80mm between the centre of the splined end to the centre of the cable nipple notch. I assume your linings are ok and your drum is not badly worn. I couldn't beleive how much difference this lever made to my brake. After I tried the longer one my mate wanted some for his 250 and 360 mk7's but because we didn't have any more genuine long bully ones so we had a few lengthened which worked well except all the welded ones eventually broke. If you would like a lend just to try I can pull the one off mine and send it to you as long as I get it back before CD7 as I think we might go up for it.
As for the rear I haven't tried that but I would amagine it would work just as well.
Back in the old days I used to get some soft competition car lining material bonded oversize to my brake shoes then set the shoes up on the backing plate with a coke can shim wrapped around the cam and spin it in the lathe and machine the lining material off untill the shoes were size for size with the brake drum, then remove the shim material giving you much more shoe contact with the drum. This is far more effective than when they radius grind the shoes separately. Gary Flood showed me how to do this when I bought my first two Bully's off Bert back in 1974.
Hope some of this helps. Regards Stan.

[jerry]

Thanks Stan. You have got me thinking. I'm sure I've got a spare actuator somewhere in the shed. I will attempt to modify if I can find it. Failing that I might take you up on your offer. I will let you know. Jerry PS Have you seen the VCM calender is out and about. Be good to catch up and say hello some time.

[jerry]

STOP PRESS! I found it. It measures 75mm centre to centre. I will clean it up and report back. Thanks again for the advice Stan. Cheers Jerry

[Stan S]

Have you seen the VCM calender is out and about. Be good to catch up and say hello some time.

Yeah, we might look at doing the last 2 rounds if everything goes ok.

Stan.

[TooFastTim]

An oxymoron? Better than Ossa brakes anyway, which aren't so much as brakes as they are a mild retardation.