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Re: Tr3a speedos

To: davidt@opentext.com, triumphs@autox.team.net
Subject: Re: Tr3a speedos
From: ZoboHerald@aol.com
Date: Sun, 10 Jul 2005 21:15:36 EDT
In a message dated 7/10/2005 5:37:22 P.M. Eastern Daylight Time,  
davidt@opentext.com writes:

I picked  up a replacement speedo for the '3 a little while ago. I finally get
around  to installing it. I notice the "model" number on the face is  
different,
mine is a 1180 the replacement is a 1200. Is there a difference  I should care
about?  What is the 1200 from?


======
FWIW, the TR2/3/3A Spare Parts Catalogue lists only two speedometers: one  
each for "MILE" and "KILO." The TR4 SPC, though, lists four different speedos  
each for MILE and KILO:
 
One (each) for 5.50/5.90 x 15" tires and 3.7:1 ratio axle  
One (each) for 5.50/5.90 x 15" tires and 4.1:1 ratio axle
 
One (each) for Michelin X 165 x 15" tires and 3.7:1 ratio  axle
One (each) for Michelin X 165 x 15" tires and 4.1:1 ratio  axle
 
I could be wrong, but given the small difference between 1180 and 1200, and  
the fact that the Michelin X tires were probably a slightly smaller diameter  
than original Dunlop Gold Seal 5.50/5.90 x 15" tires, the "replacement"  
speedometer might have been intended for factory installation of Michelin X  
tires?

 
 
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