[DeTomaso] Montana 7/14/12-FW: Speedometer Calibration Problem GT5-S Amerisport 1987

[Montana, K.M.]

7/14/12
Thanks to all who have responded with advice.  This is a great group in the
forum.  It is the first time I joined in but will now not be the last.  I'll
update info later next week as to continuing info and what I find.
Thanks again,
Ken Montana / 228-832-1313 / montana at montanas.com / Biloxi, MS

-----Original Message-----
From: Montana, K.M. [mailto:montana at montanas.com] 
Sent: Saturday, July 14, 2012 10:12 AM
To: detomaso at realbig.com
Cc: Montana File Copy
Subject: Speedometer Calibration Problem GT5-S Amerisport 1987

I am restoring a 1987 GT5-S and have had the speedometer calibrated 3 times
and it still remains approximately 135 % under reading versus actual speed.
( Gauge-55, GPS-75, Error 20, Ration-136.4%)  This error factor remains
constant through the 30-70 gauge test.
The mileage and the odometer test results in 8.0 miles reading versus actual
10 miles traveled.  The 52 ft., 9 & 1/2 in. cable rotation test is 12.63
turns within the test distance.
Advice would be most appreciated.  Ken Montana, Biloxi, MS, USA,
228-832-1313, montana at montanas.com