• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

TR6 Clutch question

AndreL

Freshman Member
Country flag
Offline
On a '69 TR6,
is it possible to push the throw out bearing so far forward against the fingers of the pressure plate,
that the fork' dowel pins come out of the groove of the bearing sleeve/carrier?

The problem I have,
the push rod of the clutch slave cylinder came so far out, I lost the fluid.
The cross shaft lever felt like the fork was not engaged with the bearing.
I pulled the gearbox, thinking it was a broken pin.
The pins are all intact and now I can't see what the problem was
(unfortunately the lever moved, the bearing fell out and evidence was lost).

I've read almost everything I could find on the Buckeye website and other sources, and could not find a precedent.

Four photos:
- the 'dent' or wear mark on the end of the fork dowel pin (driver side),
- the marks left (seemingly) by the pin on the back outer edge of the sleeve,
- the fingers, to show how little wear there is,
- where the pin and sleeve would've met to cause the damage (bearing no longer seated on the gearbox front cover).

The slave cylinder is new, the master cylinder is relatively new.
The clutch has approximately 20 thousand km, mostly highway miles, Automotive Product make, from Borg & Beck tooling, I surmise.
Two clues:
- the slave cylinder push rod was attached to the lowest hole on the cross shaft lever (incorrectly, trying to get better leverage),
- the link between the master cylinder push rod and the clutch pedal lever has a lot of play (shaft and clevis pin hole).

Those 2 issues should not have caused the problem, it should make it more difficult to release the clutch (me thinks).
Micrometer is not currently available to measure clearance between the sleeve and gearbox front cover.
I figured the bearing would have to move forward approximately 1.25 inch from its resting position against the fingers,
in order for the sleeve to come off the gearbox front cover.

Has anyone experienced this and how do I make sure it doesn't happened again?
Should there be a 'bumper' on the back of the clutch pedal lever, where it meets with the firewall, to restrict its travel?

I've had the car 44 years, no modifications from original-design replacement parts.
 

Attachments

  • 20180620_180726.jpg
    20180620_180726.jpg
    48.4 KB · Views: 52
  • 20180620_180816.jpg
    20180620_180816.jpg
    77.7 KB · Views: 56
  • 20180620_175243.jpg
    20180620_175243.jpg
    50.7 KB · Views: 54
  • 20180620_173747.jpg
    20180620_173747.jpg
    116.8 KB · Views: 61

poolboy

Yoda
Country flag
Offline
Was the new slave cylinder mounted correctly in it's bracket ?SlaveCylinder.jpg
 
OP
AndreL

AndreL

Freshman Member
Country flag
Offline
Bravo, you are correct Sir!
as much as it pains me to admit to such novice error.

To work out how the bearing came off the gearbox front cover,
I can refer to the Sticky Clutch page of the Buckeye website and I quote:

Some tilting of the sleeve is not surprising since the pins of the clutch fork sweep through the front end cover center line, but are either above or below the centerline during part of the sleeve travel....

by attaching the slave cylinder with its 'ears' to the front of the plate, I actually changed the arc of
" the clutch fork sweeping through the front end cover center line"
Thank you Sir
 
Similar threads
Thread starter Title Forum Replies Date
B TR6 TR6 1976 Clutch Choice Question Triumph 3
D TR2/3/3A clutch/brake pedal question Triumph 4
KVH General TR Overdrive Up-date and Clutch Question Triumph 2
W General Tech Clutch Release Question Triumph 6
S XJ6 Mk1 clutch slave question Jaguar 0
toysrrus TR6 Clutch fluid question Triumph 4
M_Pied_Lourd TR2/3/3A TR6 Transmission Swap Clutch Slave Question Triumph 3
T TR2/3/3A Question on A type overdrive spec for "clutch movement from direct to overdrive" Triumph 7
Marvin Gruber Big Healey clutch question Austin Healey 3
T Clutch release bearing question Spridgets 10
A TR2/3/3A Clutch Question Triumph 4
2billydavies TR2/3/3A Question about size of Clutch Alignment Tool Triumph 9
M_Pied_Lourd TR2/3/3A Brake and Clutch Master Pushrod Question Triumph 4
Zimmycobra TR4/4A Clutch hydraullics question Triumph 25
JPSmit Trivia question - clutch hydraulics Spridgets 16
toysrrus TR6 TR6 & GT6 Flywheel, Clutch question: Triumph 4
Crankshaft TR2/3/3A Brake/Clutch fluid question Triumph 6
Zimmycobra TR4/4A TR4A Clutch adjustment question Triumph 2
TR4A_IRS TR4/4A Question about TR4A Clutch line fitting specifications Triumph 1
bugedd Rivergate clutch question Spridgets 0
RAC68 A Quick Question [Clutch Master Seals] Austin Healey 2
T TR2/3/3A tr3 brake/clutch reservior question Triumph 1
W BN2 clutch cover or pressure plate question Austin Healey 2
C TR2/3/3A New member and newbie question on TR3 clutch Triumph 26
JPSmit 1500 Clutch hose question Spridgets 8
P Clutch replacement question British Motor Corp 1
hondo402000 TR6 TR6 Clutch question Triumph 5
H Clutch question Triumph 10
R clutch push rod replacement question Spridgets 6
dklawson Rhetorical Question/Comment - Use of Clutch Pedal? Triumph 29
Ohiobugeye Another Clutch Hydraulic Line Question Spridgets 2
Stinger TR4/4A TR4A Clutch Question Triumph 7
Tabcon Restoration Up-date & Clutch Question Triumph 23
SherpaPilot TR6 TR6 Clutch Question Triumph 3
davidk Clutch Pressure Plate Question Triumph 9
E Rivergate Clutch question Spridgets 2
theleisure quick clutch question Spridgets 10
H T-Series Tranny/Clutch question MG 3
M Clutch Question Spridgets 9
JPSmit Qucik Question #1 Clutch slave cylinder Spridgets 2
GT6_Mark T-Series MGC Clutch Fork Question MG 1
J clutch question Spridgets 2
R spitfire OD in MG midget, trany & clutch question Spridgets 4
CCURTISS TR4/4A TR3/TR4 Clutch Fork Install Question Triumph 8
T Clutch hose question Triumph 21
C brake & clutch master cylinder question Austin Healey 2
M Clutch Question Spridgets 3
M Clutch Question Spridgets 5
J T-Series TD clutch actuation part question MG 1
M Shifting Issue: Clutch Question Spridgets 4

Similar threads

Top