My tach on my TD seems to read high, at least from going through the
math. At 50 mph indicated the tach says approx. 4000 rpm. The numbers
on the tach reduction gear box on the back of the generator are
"R.141/AT17 2-25:1". The tach face itself says Jaeger
X65021/4
RPM
X 100
2-1
K.45
I've looked at another TD tach and it is the same.
The pulleys under the hood/bonnet are 3 3/4" on the crankshaft and 3
1/4" on the generator.
Does any of this seem incorrect?
TIA
Charlie Baldwin
'52 TD
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