weird things happening

hi

got a 1989 2.5td 110 which is overcharging its putting 18v to the battery.
fitted a new voltage regulator to the alternator but did not fix problem.
so i took alternater to be bench tested come back as no faults found

any idea what could be causing this to happen

thanks

defender1996 said:

hi

got a 1989 2.5td 110 which is overcharging its putting 18v to the battery.
fitted a new voltage regulator to the alternator but did not fix problem.
so i took alternater to be bench tested come back as no faults found

any idea what could be causing this to happen

thanks

Click to expand...

What have you been testing it with? A multi-metre or a gauge in your vehicle? Could be a faulty / dying battery in a multi-metre or a goosed gauge in your landy. Your altenator should charge at around 14-15V I believe, but I am not 100% certain.

-Pos

Correct.

get it checked at Halfrauds

pos said:

What have you been testing it with? A multi-metre or a gauge in your vehicle? Could be a faulty / dying battery in a multi-metre or a goosed gauge in your landy. Your altenator should charge at around 14-15V I believe, but I am not 100% certain.

-Pos

Click to expand...

i tested it with a multi-metre will try another one tomorrow(incase faulty) once i have refitted the alternator.

The Mad Hat Man said:

get it checked at Halfrauds

Click to expand...

im on the Isle of Man so ive got nowhere big like halfrauds to get things tested. which is a pain cause when i need big things for landy (chassis:Cry it will not be easy

cell down will cause over charging, what is multi meter saying battery voltage is?

fanatic said:

cell down will cause over charging, what is multi meter saying battery voltage is?

Click to expand...

when its started it is reading at 17.8v when turned of it varies between 12.1v and 13.7v (reading goes up the longer i hold the multi-metre on the terminals)

prob sounds stupid but what will cause a cell to go down battery only few months old is it just unlucky or will something triigger it thanks

test the meter on a household pp3 9v battery or aa cell before jumping to anything

fanatic said:

test the meter on a household pp3 9v battery or aa cell before jumping to anything

Click to expand...

yeah will do that tomorrow multi-metre in landy, outside in snow

refitted alternator today, after it had been tested and classed as ok
changed nothing no it (no cleaning etc)
now getting 14.23volts to battery
gauge is still reading of the scale (time for a new one me thinks)
does this suggest my alternator is working correctly sometimes but not others
thanks