Geoff,
I too struggled with this issue. After some careful observations, I
noticed that new out-of-the-box button rotors actually were loose where
the pin held the brass arm to the plastic. The next time that I ordered
rotors, I bought six of them and found that 50% were already loose. I
ran the good ones in my TR6 race car and had no failures. It became
regular maintenance from that point on to change the rotor before my
feature race and to carry a spare in my race suit pocket! I also
purchased different brands (Napa, Moss, Victoria British, Lucas, etc.
and found that they were all identical in construction (the Lucas brand
cost twice as much) and equally faulty. Same source I assume. Jack
Drews suggestion to contact World Wide Auto Parts is a good one. Their
rotors are made more like the original Lucas brand. Others that I have
talked with about this issue have epoxied the brass to the plastic with
good success.
Good luck,
Allen
On Oct 23, 2006, at 8:25 AM, Geoffrey Byrne wrote:
> Friends
> I have recently experienced a number of distributor rotor button
> failures in
> my TR6 causing frustrating DNF ie I have been "beaten by equipment"
> I purchased a number of the basic tune up kits from the Roadster
> Factory for
> my TR6 which include points, condensor and rotor button. I have had a
> number
> of problems with the rotor button failing due to it shorting through
> the
> plastic to the shaft . The problem relates to the small steel spring
> plate
> inside the rotor button which holds the button tight on the shaft. The
> plastic
> is very thin where this piece of steel is clipped into the plastic .
> Not sure
> if these buttons just will not take constant high revs
> In examining an original Lucas rotor button the plastic is much
> thicker at
> this point.
> From comments by others it seems to be common problem and I wonder If
> you guys
> in the States are having the same problem and if so whats the fix ??
>
> My last two buttons have only lasted minutes of running at high revs .
>
> Is there a source of original design Lucas buttons
>
> Our Regs do not allow us to run non standard Dissies or I'd throw the
> Lucas
> stuff out!!
>
> Geoff Byrne
> Sydney Australia
>
>
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>
>
Allen Washatko
#6 TR-6
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