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Braking Problem

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Braking Problem

Postby Covboy » Mon Sep 07, 2015 10:01 pm

Hi all

So I have a issue with the brakes on my 225.
New Scootsrs disc at the front
New hub, new components on rear.

Stationary:-
Rear wheel spins freely, no drag from shoes, stops spinning with light pressure on pedal.Small adjustment on the cable stops the wheel from spinning freely
Front wheel spins freely, no drag, also stops with light lever pressure - tightening up the cable brake adjuster just 1 notch (180 deg) stops the spinning and makes the wheel very stiff.I have also adjusted the pad screw similarly.

On the road:-
Only done about 20 miles so far but the brakes feel very ineffective, hard pressure on the rear at low speeds does not stop the bike, same with the front.
I would say at present it is dangerous to ride in this condition.

I'm a bit mystified, the brakes on my GT186 are much better (drum front) and no problem to set up - stops very well.

Any tips?
Have I missed anything?
Do they need bedding in? if so any method recommended?
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Re: Braking Problem

Postby dickie » Tue Sep 08, 2015 4:39 am

I just rebuilt my rear with mostly new components and it was good from the off.

Possible differences

Original drum skimmed by a mate
Makino shoes
Gp cam


My front is also rebuilt and scared the Bejaysus out of me until I changed it to reverse pull. It's not as good as r6 brakes but i can use it to slow down. My front is drum, so we're in very different territory but the reverse pull technique is just as valid.
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Re: Braking Problem

Postby MK Monty » Tue Sep 08, 2015 7:50 am

I would be removing the hubs after some very carful miles maybe riding on the brakes and have a look at just how much shoe is in contact and showing signs of wear. I suspect it will be very little. You may have to sacrifice some material and loose the high spots to get more contact.
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Re: Braking Problem

Postby Covboy » Tue Sep 08, 2015 5:54 pm

Hi

I changed the front to reverse pull and it has made a massive difference - I am amazed.

The rear will have to wait until the weekend, when I have some more time.

Thanks fellas
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