Jparry

Denham yacht station is reasonable to. joe

on my isuzu engine although my alternator/tacho wire is in the harness from panel it is connected along side the connector plugs not in the plug not that I think this willbe much help if the panel lights dont work as well.

Trouble with that we are so use there daft ideas nobody took much notice Joe

Thats Ashley Cole done for then.

I went to look at that sight generally looked liked you would be moored between 2 rubbish tips so decided against it.Joe

Yes ,thanks Joe

A combination of things were wrong the wiring for the signal to the rev counter was already in the loom connected to the alternator but not connected in the loom in two places the cable was folded back under the plastic covering I knew about one of the places so had only connected that one when I checked the wire with meter I realised there was a break, so then looked for it I used timleech's table to set it up,I did finaly see the table on the revcounter. Ive got an appointment at specsavers later Joe

Mine also is a Hydronic 10 but have never serviced it although mine runs only on weekends and the odd week but I do run it in the summer for hot water also .I am frightened to say it has never missed a beat in the 5 years I have had the boat It will probably just die now I have praised it Joe

Thanks to every one sorted it today just got to calibrate it now Joe

I thought I would use a cycle speedo

I think I need to go to the boat & remove the tacho & establish just what it says on it I thought I had read it properly but all these answers give me doubts now so thanks for all the answerrs Joe

Sorry had to take car in for repair yes it does have a potentiometer

The tacho is a faria & has a selector switch on the back numbered 1to 6. I think the alternator is a lucas 127 .I believe ?, from what I have gleaned from the internet you divide the fingers by 2 to give the poles . Joe Def ordered as a diesel one and marked as such Joe

Thanks for your help I must admit I had to measure the crankshaft pully by eye as it is behind a much larger pulley for the domestic alternator so wasnt so straight forward to see I will try to get back to the boat today .and will also phone faria today ,that is the tacho I am using Joe

Thanks I will investigate further I will post the instructions later today when I find them I hope you are right and I am wrong .Joe

Thanks but that would make the final figure worse Joe

I am hoping someone on here knows the answer .Are crankshaft pulleys usually larger than the alternator (mine is)the reason I am asking is I am trying to set up a new revcounter and the instruction say to measure crankshaft pulley and the alternator pulley ,divide crank by alternator & multiply the No of poles ,then set the switch on the back to that number . On my engine it works out at 80mm /50mm * 6 = between 9 & 10 it only goes upto 6, since most alternators are 6 pole this semms it would only work if the crankshaft pulley was smaller or the same size as the alternator thanks if I am doeing something wrong I would appreciate any helpful information Joe

A very happy Christmas to every on from another quiet one in the corner Joe

Yes you dont even have to bank it up that much to keep it in it can be turned down very low .

Good choice I have found them easy to use & nice looking

I thought he said it was an auction Joe

You must use sleeves with plastic fittings to .Joe

I meant to type instrument panel but still good answers thanks

I have just made an panel from aluminium and want to paint it I intend using a an aerosol car paint Do I need to use a special primer for aluminium or take any special precautions thanks for any help Joe