Triumphrat

oz-brit

Today, after much study and mental preparation, I bit the bullet and took on my biggest mechanical challenge to date; cam shaft removal and changing shims to bring my valve clearances within spec.

Unfortunately, I have fallen at the first hurdle with a cheese torx bit. Why do they use these things? This is a big dissapointment after so much mental preparation. Those cam caps really are grippy though.

Has anyone had this problem, and what is the solution? I was only on bolt 2 out of six.

tcb

Yeah, the first time I took my engine apart, I went through all of my torx bits and broke them all. I went to an actual tool store and bought a set of good ones and haven't had the problem since. Make sure you can account for all the pieces, so you don't have to go looking for them in the bottomless pit that is the Triumph cam chain tower!

tba-golfer

And get ones that are made of metal, rather than "cheese."

Sorry...couldn't resist.

:razz:

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cw

Torx bolts (or nuts in your case) increase the points of contact on the bolt. This allows for greater torque on a smaller bolt without stripping/rounding the bolt head.

Dickie2679

The TORX drive system was developed in the Camcar Technical center, located in Rockford, Illinois.

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mikeinva

that is one tool that you are just better off buying the best buy a snapon bit and it will last

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whoa

Lets make this the factoid thread:
By design, TORX head screws resist cam-out better than Phillips head or slot head screws. Where Phillips heads were designed to cause the driver to cam out, to prevent over-tightening, TORX heads were designed to prevent it.

Cheese tools.... mmmmmm

There are some cases where the right tool for the right job is a good standard. This is good example.

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05 Thruxton

BILLYSIM

I have posted here before that I have had great success w/ chucking my bits into a Porter Cable 14.4 volt drill. The micro ratchet chuck and 20 position high frequency clutch act as a mini impact driver/remover. The torque is limited by your clutch setting (start safe and go up) and the VIBRATION does the rest. This really works...and with a few adapters, you can use it on anything that doesn't require the compressor and the "big guy".

...Billy :wink:

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