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Clutch
#1
roncohudd Avatar
roncohudd Gold Member Ronald Huddleston
Muenster, Texas, USA   USA
1967 Triumph Spitfire "Lucy"
1969 Triumph Spitfire MkII "Lucifer"
1997 Ford Ranger "Little Red"
2001 Yamaha MC XV1600A "NOT THE HONDA"    & more
What is this hole for on the clutch release mechanism?

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20170912_200854.jpg

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, Nevada, USA   USA
Alternate link for a clutch cable.

In an alternate reality.

roncohudd Avatar
roncohudd Gold Member Ronald Huddleston
Muenster, Texas, USA   USA
1967 Triumph Spitfire "Lucy"
1969 Triumph Spitfire MkII "Lucifer"
1997 Ford Ranger "Little Red"
2001 Yamaha MC XV1600A "NOT THE HONDA"    & more
Thanks



Edited 1 time(s). Last edit at 2017-09-12 08:30 PM by roncohudd.

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Tonyfixit Avatar
Tonyfixit Tony M
Duncan, British Columbia, Canada   CAN
Or clutch slave return spring.

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, Nevada, USA   USA
In reply to # 1484662 by Tonyfixit Or clutch slave return spring.

+1

Yellowhawk Valley Avatar
walla walla, washington, USA   USA
1969 Triumph Spitfire "Walla Walla"
1969 Triumph Spitfire "Portland"
1972 Triumph Spitfire MkIV "Spokane"
1975 Triumph Spitfire 1500 "Dayton"    & more
Some early cars used them as the guys mention. Even the Heralds used that. This photo shows a rod sticking out of a hole just outboard of the clutch slave. It is connected to that outer sheave you point out. It had a spring attached to it to help pull the clutch back on this 69 car when I first bought it many moons ago. It was not needed during the 6-9 years I drove the car.
Dan


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14GPDJENGINEERING Avatar
Silver Spring, MD, USA   USA
As Dan says it is a "vestigial tail" left over from the Mayflower/Standard 10/Herald 948 period.



Dennis smiling smiley

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Herald948 Avatar
Herald948 Andrew Mace
East Nassau, upstate NY, USA   USA
Dating back to the original Standard 8 of 1953 and going up to part way through Herald 948 production, the gearbox had provision for clutch adjustment. (The Mayflower gearbox was very different, being a variation on the Vanguard box later also developed for the TR series)



http://www.fairpoint.net/~herald948/database/


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spitfire50 Avatar
spitfire50 Paul Mugford
Rochester, N.H., USA   USA
Andy,
How did that work? Did it act as a stop on the return motion?
Curious,
Paul

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Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, Nevada, USA   USA
In reply to # 1484913 by spitfire50 Andy,
How did that work? Did it act as a stop on the return motion?
Curious,
Paul

Spring 30 fits between part 29 and part 26 pulling the arm of the clutch back to the released position.

SpiTazz72 Avatar
SpiTazz72 Bryan H
Magnolia, Texas, USA   USA
I wonder if this spring will fully seat the slave piston and eliminate that troublesome air bubble we see when bleeding the system. The drawback could be a longer pedal stroke.

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, Nevada, USA   USA
In reply to # 1484924 by SpiTazz72 I wonder if this spring will fully seat the slave piston and eliminate that troublesome air bubble we see when bleeding the system. The drawback could be a longer pedal stroke.

The bean counters who eliminated didn't anticipate that side effect.

spitfire50 Avatar
spitfire50 Paul Mugford
Rochester, N.H., USA   USA
In reply to # 1484919 by Doug in Vegas
In reply to # 1484913 by spitfire50 Andy,
How did that work? Did it act as a stop on the return motion?
Curious,
Paul

Spring 30 fits between part 29 and part 26 pulling the arm of the clutch back to the released position.

Doug,
That doesn't explain how it adjusts the clutch.
Working it as you describe would seat the slave piston deeper into the cylinder. That in turn would require a longer throw of the pedal to release the clutch. Slacking the tension off completely would make the system operate as the later cars' set-up does, without the extra parts.
All the best,
Paul

Doug in Vegas Avatar
Doug in Vegas Douglas D
Las Vegas, Nevada, USA   USA
In reply to # 1485153 by spitfire50
In reply to # 1484919 by Doug in Vegas
In reply to # 1484913 by spitfire50 Andy,
How did that work? Did it act as a stop on the return motion?
Curious,
Paul

Spring 30 fits between part 29 and part 26 pulling the arm of the clutch back to the released position.

Doug,
That doesn't explain how it adjusts the clutch.
Working it as you describe would seat the slave piston deeper into the cylinder. That in turn would require a longer throw of the pedal to release the clutch. Slacking the tension off completely would make the system operate as the later cars' set-up does, without the extra parts.
All the best,
Paul

It wouldn't actually increase the travel. It would shift the position of the travel so it's less likely to bottom out on the circlip.

Lizzard d id
san jose, ca, USA   USA
It unloads the throw out bearing .

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