I have just been looking at some stuff about my swap. My question is, is there a such thing as an OBD0 alternator and an OBD1 alternator for a D-series? I am just trying to rule some stuff out. If there is, how can you tell the difference and is the wiring and mounting different. My motor before the swap had a few A6 parts and it is a Z6.

I didn't do the swap, just bought the car ghetto rigged.

 

Anyone?

 

obd == on board diagnostics. Alternator has nothing to do with obd. I would be shocked if the alternators were not interchangeable between an a6 and z6.

 

I'm thinking the plugs are different...

 

they both will mount up but the plugs are differant... obd1 is green and obd0 I think is white if i remember from my crx days

 

they both are same in colour, they got nothing to do with OBd1 or OBD0,

 

Alright, just trying to narrow stuff down. Thanks guys.

 

both are 100% plug and play.

 

The BIG difference between the two on a D-series motor is the pulley. 1988-1991 alternators use a three rib serpentine belt, while 1992-1995 alternators use a four rib belt (similar to ALL B-series). Also, the 1992+ alternators are somewhat bigger, and appear to be higher output units. But I would think that newer alternators are compatible with older ECUs (and vice versa). They are with B-series.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx_88_si &raquo;</TD></TR><TR><TD CLASS="quote">both are 100% plug and play.</TD></TR></TABLE>yup correct, the rib count is the same for the belts. the main difference is that the CRX one is a 60 amp and the 92 up are 70 amps.
plugs are the same, as is mounting locations.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StorminMatt &raquo;</TD></TR><TR><TD CLASS="quote">. 1988-1991 alternators use a three rib serpentine belt, .</TD></TR></TABLE>do you have a pic of this 'serpentine' belt?

 

The pulley's are different... My CRX HF had the thinner belt while A/C belt was wider. Then when I got my OBD1 JDM D15B VTEC motor w/ alternator on, it had a wider alternator belt; exact same width as A/C belt.

You can use either one. The difference is also noticable on their crankshaft pulley.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueCrxNC &raquo;</TD></TR><TR><TD CLASS="quote">The pulley's are different... My CRX HF had the thinner belt while A/C belt was wider. Then when I got my OBD1 JDM D15B VTEC motor w/ alternator on, it had a wider alternator belt; exact same width as A/C belt.

You can use either one. The difference is also noticable on their crankshaft pulley.</TD></TR></TABLE>this must be form the diffrence in compressors since my DX had the wider belt.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NastyHabitzCRX &raquo;</TD></TR><TR><TD CLASS="quote">this must be form the diffrence in compressors since my DX had the wider belt. </TD></TR></TABLE>

Compressors?

Okay, so it would seem that HF's had the thinner alternator pulley while all/most others have the wider one identical to the 92-95 Civics.

 

When I did my swap and put everything back in, the AC and Alt. belt were diff. sizes.