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No output from Alternator to rev counter
Posted: 17 Dec 2023, 20:28
by Haro1972
Been struggling with this one for a while .Had the alternator re-conditioned before we went off on holiday hooked it up no output to the rev counter ,at this point too late to get a new one . Easy solution I’ll buy a new one but unfortunately a JX 90 amp doesn’t fit a 1Y engine has been fitted with a modified bracket for the alternator ,anyone seen this before there is no code on the alternator to identify it all I know is it’s a Bosch .
Re: No output from Alternator to rev counter
Posted: 17 Dec 2023, 20:30
by Haro1972
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Re: No output from Alternator to rev counter
Posted: 17 Dec 2023, 20:31
by Haro1972
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Re: No output from Alternator to rev counter
Posted: 18 Dec 2023, 12:11
by DoubleOSeven
My rev counter is fed from the negative pin on the coil. Not sure what the alternator has to with that signal. Could be a workaround for you though.
Re: No output from Alternator to rev counter
Posted: 18 Dec 2023, 12:32
by cobblers
DoubleOSeven wrote: ↑18 Dec 2023, 12:11
My rev counter is fed from the negative pin on the coil. Not sure what the alternator has to with that signal. Could be a workaround for you though.
No coil on a diesel
They use a tapping from one of the windings in the alternator for a tacho signal.
