In a message dated 9/1/2007 11:03:51 AM Pacific Daylight Time,
tr3driver@ca.rr.com writes:
However, based both on personal experience and what I've been told, this
doesn't appear to be too important for nearly stock, street-driven engines.
It's the people who consistently run over 5000 rpm that seem to need the
dampening. To that end, most of the racing TR parts suppliers offer a
harmonic dampener to fit the TRactor motor. It's also usually alloy, and
usually part of a narrow belt conversion, and quite pricey. TriumphTune
used to sell the parts to allow using the dampener from a BMC motor, but
AFAIK that kit has been NLA for a long time.
Greetings... I got this from a friend who raced TR powered Morgans in the
70's in Europe. The dampener from a 3-main MGB will fit with slight
modification to the key-way to make it a bit deeper. This also converts it to
a
narrow belt. You then need a narrow belt pulley for the generator (if you are
still using one-GM alternators come with narrow pulleys). He didn't recall
the
details for the waterpump pulley, maybe TR6. His further recommendations
were tufftriding the crank and a very precise balance job. His engines ran
consistently over 6000 and he never broke a crankshaft (again). TJ
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