another electric problem :(

poo forgot abotu that
ill need to get a multimeter off my mate
cheers for the reminder ill do that tomorrow aswell

Whats the rating of the alternator, if its 35 or 45amp then you need a bigger one.

Your car amp is probably drawing about 300-400W based on what you've told me.

35A x 12V = 420W
45A x 12V = 540W

So you can see even when the alternator is performing at peak current levels it would only be providing a 100-200W of spare power, turn on the lights and/or heater and your battery will drain.

You need at least a 55A or I'd suggest going further and get a 65A, if you going to increase the stereo further, go for the 90A one.

And don't waste your time measuring Voltages it proves nothing

i found a wire split for my rad fan and looked like it was touching metal
hope this is what was drainiogn the battery
ill see  after a good run if this has mad any differance

there not writing on the altinator or any stickers so i carnt find out

Jack1 said

there not writing on the altinator or any stickers so i carnt find out

Its a small block, not sure if you can upgrade anyway. So you might just have to settle with the power you have. Someone else is bound to know, etc.

But first……try to find out if the existing one is fault.y.

ye rmna
well im gunna do a engine swap cause this engine has started leaking oil pritty bad now

Jack1 said

ye rmna
well im gunna do a engine swap cause this engine has started leaking oil pritty bad now

rmna?

engine swap - like for like? Will the new one come with an alternator?

sorry i was rushing hahaha
it was ment to say yer man

and na uprateing to a 1.6 16v engine from a mk4 polo
and im sure you need a polo altinator for it too

wont be for a while tho

paul_c said

Jack1 said

there not writing on the altinator or any stickers so i carnt find out

Its a small block, not sure if you can upgrade anyway. So you might just have to settle with the power you have. Someone else is bound to know, etc.

But first……try to find out if the existing one is fault.y.

I'm pretty sure I had a 65A on my 1.3 Driver, certainly wasn't a 35/45A anyway, but if as you say there's no easy upgrade the split charger system as you suggested is the best alternative. At least then if the amp battery dies the car will still function.

Fully working or not though a small alternator will cause problems with the amps.