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[freecall666]

looking for an up grade think one i have is 70a and original one i think but lights are dipping at night and charge is waving about 11.5v 12.10v up down all time, what is the highest one can put on engine, was offerd and 90a recon but not seen a 90a only 70a and 100a. would it be ok or not. thanks for looking

[GastronomicKleptomaniac]

Try going through these steps first to find if it is the alternator at fault

http://www.omegaowners.com/forum/index.php?topic=90619.0

[freecall666]

Try going through these steps first to find if it is the alternator at fault

http://www.omegaowners.com/forum/index.php?topic=90619.0

thanks had a look, still think its alternator, no adnormal drain on battery, and just put new one on not long back. put fan on number 2 and radio on with light battery volts drop to just under 12v, at idel. charges fine with out a drain on it. but still just over 12v. used to be fine with no problems has a good dance around with volts when driving.

[Kevin Wood]

Sounds to me like your alternator's on the way out or you have a wiring fault (check the crimping of the battery terminals and security of the grounding straps between engine, body and battery negative terminal.

Very seldom will the car draw the full rated output of the alternator, so I don't see the point of upgrading it. The manufacturers would have specified it to suit the electrical spec of the car when new.

[freecall666]

Sounds to me like your alternator's on the way out or you have a wiring fault (check the crimping of the battery terminals and security of the grounding straps between engine, body and battery negative terminal.

Very seldom will the car draw the full rated output of the alternator, so I don't see the point of upgrading it. The manufacturers would have specified it to suit the electrical spec of the car when new.

thanks Kevin have to try and find one failing that take up offer on 90a one, dont know why a 70a cost more than a 100a one?
clean'd all wires and battery clamps

[Kevin Wood]

What you can try is to measure the alternator output at the terminal on the back of the alternator itself, just to make sure. If it's low there, the alternator is the issue. Tricky to get to but conclusive.

Alternators can be refurbed yourself quite easily. Just a couple of bearings and a regulator pack would probably see it working again.

I guess the pricing is just down to which parts are more commonplace, and therefore cheaper to stock.

[2woody]

Ex-plod V6s have a 130A alternator fitted - I probably have a spare one somewhere if really needed

[freecall666]

Ex-plod V6s have a 130A alternator fitted - I probably have a spare one somewhere if really needed

thanks but dont think they fit on 2.0l engine, Kevin got some crok clips and put on the back and volts is not constant. the person with the one was going to get says he will swap his and £20 for recon one so not to bad, see him tomorrow.

[freecall666]

Ex-plod V6s have a 130A alternator fitted - I probably have a spare one somewhere if really needed

thanks but dont think they fit on 2.0l engine, Kevin got some crok clips and put on the back and volts is not constant. the person with the one was going to get says he will swap his and £20 for recon one so not to bad, see him tomorrow.

he just got back to me and found a 3week old new one for my year and engine type so getting that one £30. never used nice.