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Re: RPMs WAY too high !

To: TR6 Triumph <tr6_1969@hotmail.com>
Subject: Re: RPMs WAY too high !
From: "Robert M. Lang" <lang@isis.mit.edu>
Date: Mon, 28 Apr 2003 14:23:21 -0400 (EDT)
On Sun, 27 Apr 2003, TR6 Triumph wrote:

> Ok, its a nice day out.  So I took her for a ride.  Remember: my 1969 TR6 
> 4-speed manual transmission, first time on the road in 17 years?  Today I 
> drove several times at an indicated 65 MPH on the speedometer and the 
> tachometer indicated 3650 RPM !!!!!!  Help.  Too high.  What does this 
> mean???  Do I have a 4.10 rear?  Did the previous owner change it maybe?  
> Could it have been ordered this way?  Or should I just disconnect both the 
> speedometer and tachometer and drive it without either of them, that way 
> I'll never know better (that's what I did 18 years ago, when I was last 
> driving it).

You either have the wrong speedo or your tach is reading high (and need to
be recalibrated.

Note: if the gears were changed, the RPM/MPH reading is the same. The
actual speed would be slower for a given RPM, but the speedo would read
the same.

I'm assuming, of course that your speedo is NOT a GPS based speedo.

Find a measured mile and test your odometer and speedo functions with a
stop watch. This should help you drill down to the problem (whatever that
is).
  
> Sincerely,
> Dave Herbert
> 1969 TR6 and nothing else

regards,
rml

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