Interesting. That was definitely a late, after-the-fact change since the
national speed limit of 55 was enacted either in the Fall of 1973 or
slightly later if I remember correctly. Connecticut had a state limit of 50
MPH for a while as I travelled to college in the Fall of '73 and the new,
national limit was a month or two later I think.
Alex Thomson
-----Original Message-----
From: triumphs-bounces@autox.team.net
[mailto:triumphs-bounces@autox.team.net] On Behalf Of Dean Tetterton
Sent: Saturday, December 15, 2012 3:37 PM
To: triumphs@autox.team.net
Subject: [TR] Tail Weight
At the time that the weight was added to the tail shaft of the
transmissions, the normal speed limit was 55 in the US. At a constant 55 the
shifter of the TR4 would "buzz". This resulted in a lot of complaints. The
solution was to hang a weight from the Transmission. This changed the RPM of
the harmonics from 55 to another spot. It was still there but not in a spot
where one drove at a constant speed. There was a engineering bullention
issued on it. Was retrofitted at the dealer if the customer complained.
Dean Tetterton
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