Alternator probs. .

Turbo Twat · Post by **Turbo Twat** » Thu Nov 20, 2003 5:55 pm

Hi guys, been a while so thought I should raise my head. Hope you are all good and looking after your babies. . .

Right, here's the problem; altenator went, removed, couldn't source a replacement so paid to have it refurbished. I then replaced, but ever since then no charge is being sent to the battery (charge light is constantally on). Have testid terminals with volt-meter and if you attach meter from negative terminal on battery to big terminal on altenator, appears to be chucking out in the region of 15v, so is working, but must be a prob inbetween altenator and battery as charge never reaches it. . .

Do any of you have any suggestions/have experienced similar probs??

Cheers.

MatBat · Post by **MatBat** » Thu Nov 20, 2003 7:27 pm

I'd take it back to whoever serviced it. Sounds pretty strange to me

strangegame · Post by **strangegame** » Thu Nov 20, 2003 7:36 pm

From memory . so im probably wrong. is there not a wire on the alternator, just for the battery warning light.also have you checked the fan belt ( drive belt ) is tight but not too tight

does it start in the morning turbo

volvofox · Post by **volvofox** » Fri Nov 21, 2003 2:55 am

there are some old rusty connectors under a black plastic. check if they are OK. (check the complete wiring to the battery)

btw. 15 volts is kind of much.... is the regulator working (at the rear end of the alt, with the blue? and yellow wire)... Is everything connected well ?

Luck
JPF

Turbo Twat · Post by **Turbo Twat** » Fri Nov 21, 2003 5:02 pm

Cheers guys. . .

Have temporailary fixed prob by adding a temporary cable straight from big terminal on altenator directly to positve terminal on battery, so must be a prob in wiring between terminal on altenator and battery!! Guess i will have to trave the wire from altenator to battery to locate fault. . .

Do any of you have any idea as to the route this wiring takes? Or what could be causing the fault . . First thing i will check is connectors dr fox mentioned (cheers mate!!), haven't had time yet ..

(Have checked fan blet tension and battery warning light connections and these are all fine)

Turbo Twat · Post by **Turbo Twat** » Tue Nov 25, 2003 10:55 am

Is all fixed now, through cutting a few cable ties and tracing the wiring, found an inline 80A 'MEGA FUSE' not far after the altenator it was for some reson blown. Stole a replacement form the scrsapyard.

These fuses were apparently fited by Volvo as a recall after a number of altenator faults caused a number of 400 series to set fire!!

Anyway, sorted!!

MatBat · Post by **MatBat** » Tue Nov 25, 2003 11:27 am

Then you have fixed the problem, not the cause. You should find out what caused the fuse to blow in the first place. Or you could face a hot 480!

This happened to a Peugeot 205 up the road from me, the guy kept having a blown fuse, so he hard wired the fuse with a peice of wire. It worked for a few months, and then............ FLAMES!!!!

Turbo Twat · Post by **Turbo Twat** » Wed Nov 26, 2003 10:03 am

Will investigate further if fuse goes again, but as it never worked since my altenator packed up would guess that some kind of change in current as the altenator was kicking out its last bit of power probably cauesd it!!

MatBat · Post by **MatBat** » Wed Nov 26, 2003 10:11 am

Do you have A/C? the alternators are different. The alternator for the a/c car is much more powerful. Perhaps it has the wrong alternator, or when it was repaired they replaced a differant part. Hope you can get it sorted.

Turbo Twat · Post by **Turbo Twat** » Wed Nov 26, 2003 11:42 am

I don't understand, it is sorted!!

MatBat · Post by **MatBat** » Wed Nov 26, 2003 12:20 pm

I thought that this could have been what blew the fuse. But reading your post I see what you mean now.

volvofox · Post by **volvofox** » Wed Nov 26, 2003 3:05 pm

any rusty or oxidated clamb of the fuse can make it burn. there is no danger at the moment. He has a fuse in it now. If he keeps on having burned fuses, than he has to worry about this.

luck
JPF