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TR2/3/3A TR3a Clutch cylinders
- Thread starter Lemlem
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Thank you for the responses BUT, "like a lever" a lever works by leverage advantage, ie A long handle and a small pivot. It seems that if the m?cyl is smaller then the volume of fluid entering a larger cylinder will not push it as far! It seems like it should be the other way round,NO!
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Seems to me that's exactly where the "lever" comes into play; in this case the brake or clutch pedal is the lever.
Are there any other comments on this. What I'm trying to say is; if a Master cylinder has a bore of 3/4" and it is operating another cylinder which is 1" then for 1" of movement of the master the fed cylinder can only move 3/4" as it needs more fluid to occupy the 1" diameter. Conversely, if a 1" cylinder fed into a 3/4 the 3/4 piston would have to move farther!
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Well, the math is a bit off, you need the ratio of the two volumes, not just the diameter.
But you are right, a larger piston pushing a smaller slave will result in more movement at the slave, the opposite will result in less movement, but with a mechanical advantage.
But that doesn't mean the sizes the Triumph engineers selected are wrong, and of course other parts of the linkage (clutch petal, the arm that operates the fork) also affect the system.
But you are right, a larger piston pushing a smaller slave will result in more movement at the slave, the opposite will result in less movement, but with a mechanical advantage.
But that doesn't mean the sizes the Triumph engineers selected are wrong, and of course other parts of the linkage (clutch petal, the arm that operates the fork) also affect the system.
TR3driver
Great Pumpkin - R.I.P
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Check how far the slave moves for one stroke of the pedal. If it is less than about 5/8", there is a problem in the hydraulics. (My guess would be a broken spring inside the MC, but there are lots of other possibilities including not having the pedal properly adjusted.)
If it is moving that much (and you do have it properly adjusted), then there is a problem inside the bellhousing.
Oh yeah, also check that the return spring is, in fact, returning the slave piston all the way to the internal stop. A weak or ineffective return spring can also cause odd problems.
If it is moving that much (and you do have it properly adjusted), then there is a problem inside the bellhousing.
Oh yeah, also check that the return spring is, in fact, returning the slave piston all the way to the internal stop. A weak or ineffective return spring can also cause odd problems.
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TR3driver said:
Randall is of course correct. I was thinking about that there is an equal volume of fluid displaced, but the mechanical advantage (or disadvantage) of the hydraulic potion of the mechanism is the ration of the areas.
TR3driver
Great Pumpkin - R.I.P
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Nope, drivers seat is always fixed. Only the passenger side folds forward, even on RHD cars.
PS, it's good practice to start a new thread when you have a new question. Lets folks decide if they are interested in reading by the title, and makes it easier to find later on.
PS, it's good practice to start a new thread when you have a new question. Lets folks decide if they are interested in reading by the title, and makes it easier to find later on.
Thank You, Yes, I realized that afterwards. I clicked on New reply instead of New post. As for the clutch issue, I ended up modifying (shortning)the push rod then removing the very strong spring, I pushed the piston all the way out then adjusted the free play on the rod. I added a very week spring just to ensure the lever would in fact come back. It is perfect. I presume that someone fitted the wrong cylinders, I ordered the correct ones and of course they were not going to work! Thank you all.
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