voltage

[mk1morris]

Got a prob with my voltage the alternator has 14 v when engine is running but 11.5-12 at the battery not anough charge getting through had the alternator checked and all is good put a new battery on and it just slowly drains any ideas anyone

[Miniböttcher]

The alternator sounds like its fine so check the cables running to and from it. One could be cut or broken somewhere.
You must also have a drain some where something is slowly pulling on the battery.
Could be a Internal light which is left on.
Does you box of tricks come up with anything.

Check with a tester to see if anything is powered up with the keys out.

Has anyone in the past done any DIY wiring anywhere.

A good thing to put on you earth terminal is a isolator switch.

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[mk1morris]

My box of tricks cant find a fault but engine running and volts at battery are slowly dropping but alternator is pushing out 14v Checked wiring all looks good cleaned all conectors to alternator and checked thay are tight no voltage anywhere when not running just seems the voltage is not making its way to the battery cant understand it
would there be a inline fues at all
all wiring is standered and un buchered

[Miniböttcher]

Check all your earth points and the one in the boot.

Bloody spi and mpi all those computers Etc etc. ha ha

[MiniGT5]

As suggested check the earth points and I'm not sure how the voltage regulators work in spi / mpi is it possible that could fail and not be allowing charge into the battery

As for a drain on the battery in the past I have known of cars fitted with trackers suffering from this when the tracker internat battery goes flat... If its a good tracker you would not even know its there but people never used to fit trackers to minis in the 90s as they were still cheap run a outs then so probably not a likely cause

Neil