Triumph Clutch Fork Pin Tapered - 158777X

Triumph Clutch Fork Pin Tapered - 158777X

This is a hardened taper pin holding the fork to the cross shaft.

The tapered pin holding the release fork to the cross shaft often cracks or breaks.

Take care with this part of the operation... It will save you hours of time and frustration if you get it wrong.

Trial fitment of the pin in the hole is important.

If the pin wobbles in the hole, it may be gently 'tapped' into the hole for a better fit.

This helps overcome the frequent failure of this pin.

This can be the reason for clutch drag - caused by part of the slave cylinder push rod travel being taken up by movement between the fork and the cross shaft.

When carrying out any work involving the removal of the engine, gearbox or both from the

car,the opportunity should be taken to replace the pin while access to it is easy, whether it appears to need replacing or not.

Failure in this area can lead to the fork not being positively located and will prevent disengagement of the clutch.

Drilling through the fork, through the shaft and out the other side and installing a hardened roll pin as a back up to the taper pin 158777X is also recommended.

Of course using the correct tempered Wire Tie to secure the taper pin is also important.

"Fitting a Round Peg into a Square Hole"

Correct seating of the pin in the cross shaft is important. Ensure that any broken parts

of the pin are removed from the fork and shaft. Also, check the taper angle of the pin should correspond to that in the hole in the cross shaft without the presence of the release fork.That will bring to light any irregularities

in the two components.

If the amount of "tapping" required is excessive, replacement of the clutch cross shaft or the tapered pin may be necessary.

To suit vehicles 

Triumph  TR2

Triumph  TR3

Triumph  TR3b

Triumph  TR4

Triumph  TR4a

Triumph  TR250

Triumph  TR5

Triumph  TR6

Triumph  Stag

Triumph  Dolomite

Triumph  2000

Triumph  2500

Triumph  2.5Pi

TR Register