On Tue, 5 May 1998, Darrell Leach wrote:
> Well, both of my 1962 TR4s speedometers say 1184 on the lower center
> of the face. One car is OD the other is not. I am not the original
> owner of either, so cannot vouch for the originality of the speedos,
> but there are other numbers on the face's that are different. One of
> them is a serial number, but the other may be a part number. The maybe
> part number, for the OD unit, is 209182, for the non-OD unit it is
> 208082.
Those are Triumph part numbers.
209182 is for use with a 3.7 rear axle and 550/590 x 15 bias ply tires,
with speed shown in MPH. It was used on commission number CT11308 and
later.
208082 isn't in the factory parts catalogue. Is it perhaps 208062? That's
the same as above, but used on CT11307 and earlier.
By the way, the speedo calibration isn't determined by whether or not the
car has overdrive. It's determined by the ratio of the rear axle. Most
non-overdrive TR4s have 3.7 gearing, and most overdrive cars have 4.1, but
that isn't a hard and fast rule.
-----------------------------------------------------------------------
Chip Old 1948 M.G. TC TC6710 NEMGTR #2271
Cub Hill, Maryland 1962 Triumph TR4 CT3154LO
fold@bcpl.net
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