29-06-2024, 08:01 AM
Hi
There isn't really a "zero position" for the adjusters, the square headed bolts can wind out by many turns. However, you may reach a point where the hardened steel plungers in the adjuster touch each other at the nearest tips of their angled faces, so the shoes cannot retract any further from the drums. I guess this could happen if the shoes have been fitted with liings that are a little thicker than standard. As long as the brakes aren't binding this shouldn't be a problem, and in any case the clearance will increase as the shoes bed in.
Due to the fitment of adjusters in the semi-girling design, the position of the actuator cams and levers is more closely controlled than in the earlier design. It needs to be, because the cams are smaller to give more leverage and the levers are longer. When the brakes are fully applied the levers should ideally be vertical if you are to get maximum effectiveness, but as long as they are no further back than about 20 degrees I wouldn't worry. From memory, after adjustment the "off" position is usually about 10 to 20 degrees forward of vertical, so your 45 degrees does sound a bit large. Where do your levers sit with the brakes full off and full on ?
There isn't really a "zero position" for the adjusters, the square headed bolts can wind out by many turns. However, you may reach a point where the hardened steel plungers in the adjuster touch each other at the nearest tips of their angled faces, so the shoes cannot retract any further from the drums. I guess this could happen if the shoes have been fitted with liings that are a little thicker than standard. As long as the brakes aren't binding this shouldn't be a problem, and in any case the clearance will increase as the shoes bed in.
Due to the fitment of adjusters in the semi-girling design, the position of the actuator cams and levers is more closely controlled than in the earlier design. It needs to be, because the cams are smaller to give more leverage and the levers are longer. When the brakes are fully applied the levers should ideally be vertical if you are to get maximum effectiveness, but as long as they are no further back than about 20 degrees I wouldn't worry. From memory, after adjustment the "off" position is usually about 10 to 20 degrees forward of vertical, so your 45 degrees does sound a bit large. Where do your levers sit with the brakes full off and full on ?