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Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.

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Old 12-11-2012, 11:42 AM   #1 (permalink)
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Timing cover & clutch cover replacement

I was looking into replacing my stock brushed aluminum looking timing cover and clutch covers with either a speed merchant fined covers or just powder-coated covers. How difficult is it to do this? all I need to do is drain the oil and get new gaskets to complete this task?
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Old 12-11-2012, 12:16 PM   #2 (permalink)
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You will need new gaskets. Make sure to scrap off all the old bits. Its pretty easy to do...plan it around an oil change.
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Old 12-11-2012, 04:00 PM   #3 (permalink)
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Replacing the covers is a simple mechanical job, but remember you will have to remove the stator from your "Timing Cover" which isn't to bad, just be careful when removing the wires & gromet.
The clutch side is a little more complex. You'll have to swap out the clutch actuating mechanisms. There is a cover plate, the clutch shaft, a pin & a spring and what looks like a rubber cush drive but I think it's there as a damper. Also there are bearings for the clutch shaft that may have to be installed in the new clutch cover. Make sure you note exactly how it all comes apart. One end of the spring fits into a hole in the end of the shaft. It can be a little tricky, but doesn't require a high skill level. Just patience and note how everything comes apart.
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Old 12-11-2012, 05:59 PM   #4 (permalink)
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This sticky in Twins Technical Talk contains a wealth of information on maintenance/repair:


When I had to change my clutch cover gasket, I had a terrible time cleaning the old gasket off, but the following link was helpful (even though I wash't messing w/ the springs).

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Old 12-11-2012, 06:01 PM   #5 (permalink)
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It can be very helpful to take detailed photographs while disassembling and then look at them as you put it back together.
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