05-03-2019, 08:06 PM
(This post was last modified: 05-03-2019, 08:14 PM by Bob Culver.)
Hi Jon and others
The flat on the cotter aligns with the flat on the cam spindle. The hole in the lever aligns with the body of the cotter, which is at an angle to the flat.The holes on the levers are square to the body of the lever so not handed, although the twist at the front introduces l and r. Depending on which way cotter inserted, the shank of the lever is less or more than square to the cam flat
The best advice is to select for optimum lever positon operated. (With Girling this does not change much, and should be close to right angle.)
The experts will be able to confirm if they so deign, but I suspect the rear levers are further forward on pre Girling Rubys to accommodate longer levers without the axle housing getting in way. (a slightly shorter cable is listed). It is presumably why many cars are seen with long levers fitted pointing up (when the cable angle is all wrong and levers liable to strike the body and be damaged)
Very early cars had very short levers. I wondered if this was to allow cams to be fully off for all states of wear. It was generally recognised that unreasonable later, esp with the long Ruby arms.
With absolutely unkinked cables, bedded shoes, uncoupled rears, cable length adjusted equally, would be intersting just how much pedal give after shoes contact.
Although disconcerting, esp to modern drivers, a long pedal travel ensures brakes do not rub, esp with varying axle ride positons; need every mousepower with Sevens
Cams are easliy made and may not have been readily avialable in the past. May explain some of the odd angles..
The flat on the cotter aligns with the flat on the cam spindle. The hole in the lever aligns with the body of the cotter, which is at an angle to the flat.The holes on the levers are square to the body of the lever so not handed, although the twist at the front introduces l and r. Depending on which way cotter inserted, the shank of the lever is less or more than square to the cam flat
The best advice is to select for optimum lever positon operated. (With Girling this does not change much, and should be close to right angle.)
The experts will be able to confirm if they so deign, but I suspect the rear levers are further forward on pre Girling Rubys to accommodate longer levers without the axle housing getting in way. (a slightly shorter cable is listed). It is presumably why many cars are seen with long levers fitted pointing up (when the cable angle is all wrong and levers liable to strike the body and be damaged)
Very early cars had very short levers. I wondered if this was to allow cams to be fully off for all states of wear. It was generally recognised that unreasonable later, esp with the long Ruby arms.
With absolutely unkinked cables, bedded shoes, uncoupled rears, cable length adjusted equally, would be intersting just how much pedal give after shoes contact.
Although disconcerting, esp to modern drivers, a long pedal travel ensures brakes do not rub, esp with varying axle ride positons; need every mousepower with Sevens
Cams are easliy made and may not have been readily avialable in the past. May explain some of the odd angles..