|
Title: Tacho Problem Post by: Peter W on 17 September, 2009, 10:53:27 PM The tacho on my 1600HF has started to play up. On starting it appears to read correctly for a second or so but then rapidly goes round to 6000 rpm. At tickover it fluctuates violently from 2000 to 6000 & as soon as I build the revs up a little it reverts to 6000. The engine is running perfectly. I am not sure whether to look for a wiring fault or an instrument problem. Has anyone experienced a similar problem?
Peter Title: Re: Tacho Problem Post by: nistri on 18 September, 2009, 07:01:22 AM First, I would check carefully the electrical connection of the tacho to the coil. Second, if you are using electronic ignition, the special module between the black box and the tacho to transduce its electrical signals may be damaged (this is a common problem). Otherwise it is likely to be the instrument. Andrea
Title: Re: Tacho Problem Post by: Peter W on 18 September, 2009, 11:13:49 PM Hi Andrea. I am not using elctronic ignition & the tacho connection is firmly attached to one side of the ballast resistor, so it looks as though I will have to source another instrument.
Peter Title: Re: Tacho Problem Post by: lancialulu on 19 September, 2009, 08:40:42 PM Peter
Have you checked the earthing behind the dash? Tim Title: Re: Tacho Problem Post by: Peter W on 20 September, 2009, 11:53:47 AM Tim
I am just about to go off sailing for a week but when I get back I will get down to a detailed examination. Peter Title: Re: Tacho Problem Post by: Dilambdaman on 23 September, 2009, 12:18:46 AM Peter
I've got a spare set of black face Fulvia instruments. Any use to you? Robin. Title: Re: Tacho Problem Post by: Peter W on 29 September, 2009, 03:42:47 PM Thank you for the offer Robin, I would like to take you up on that.
Peter Title: Re: Tacho Problem Post by: Dilambdaman on 29 September, 2009, 10:33:49 PM Peter,
I've sent you an email. Robin. |