Circaskaterr

So my friend told me that its possible to convert an OBD2 alternator to OBD1. I have an Alternator off a B20B thats basicly brand new but its OBD2 and the one on my integra thats OBD1 went bad. So can you like take them apart and swap the insides or something.

Circaskaterr

bumpp i need to know this by tomorrow so i can save the money for a new alternator or to get mine rebuilt

civic sand rail

Whats wrong with your original alt? Surging voltage???? Did it cut right out?

usually a alternator rebuild consists of replacing brushes and bearings as well as cleaning slip-rings on rotor.

Sometimes the diodes blow as well.

For the most part it is worn brushes though

Circaskaterr

it wont charge the battery when i use the old one my battery light stays on and my car dies when the battery does but then we tried my friends and right when we started the car the battery light was gone and the lights stopped dimming

civic sand rail

Yes it does still sound Like your alt.

With your friends battery installed it will run fine till the battery dies.

One more test you can do would be to use a volt meter and while the car is running check the voltage between the battery terminals. If you have around 14V at the terminals with the car running your alternator is fine. If it is 12V or less your alternator need to be fixed.

If you are getting 14 V steady ............. The battery must not be accepting a charge.

Circaskaterr

yeah we did that thats how we knew it was the alt it was just staying at around 12 and slowly went down

civic sand rail

ok so .......you can call you local parts store and ask them if the have a rebuild kit for your alt. and just rebuild it yourself

Circaskaterr

well couldnt i just use the almost brand new one to rebuild it? they are basicly exactly the same except for the plugs if im not mistaken

civic sand rail

yeah if the brushes fit and the bearings fit sure!!

Why cant you just use the newer one?? Different mounts?

Circaskaterr

the plugs are different and i dont have the OBD2 plug to just change the wires i might just go and find one though

civic sand rail

if it is just the plugs id rebuild the old one with the new parts.

Circaskaterr

yeah i just gotta figure out how to first ive been looking and cant find any tutorials on how to that have pictures

civic sand rail

http://www.youtube.com/watch?v=T7V8E8YlNls

http://www.youtube.com/watch?v=JgwXr...eature=related

http://www.youtube.com/watch?v=9gdmm...eature=related

This guy has about 10 videos on the various steps..... go to you tube and check all them out


It is easy dude just pay attention

Circaskaterr

alright thanks a lot

turbodcxbro

iTrader: (1)

Yes I just did this on my wifes 1994 Integra, I used the B20 alternator from the 1999 B20 engine I swapped. You just need to pull the back cover off of both alternators by removing the 8mm nuts.

Lift the cover off and you will see the regulator and rectifer bridge. Just remove the regulator by removing the small philips screws, be careful because the brushes will also come off, dont damage them.

Swap the regulator with the one from your old alternator and your done! As long as your old regulator was good this will work fine and plug right into your harness.

Circaskaterr

yeah i found that out but one of the screws on the old regulator got stripped and i cant get it off cause its rusted in place.