That lists the following engines;fefelarue wrote: this is the first alternator I bought that didnt fit:
http://www.ebay.co.uk/itm/251724684058? ... EBIDX%3AIT
Linked Vehicles
Description Model Year Body Style kW HP cc
HONDA - PRELUDE Mk III (BA) - 2.0 EX (BA4) 04.87 - 01.92 Coupe 80 109 1958
HONDA - PRELUDE Mk III (BA) - 2.0 (BA4) 08.87 - 01.92 Coupe 84 114 1958
The B20A7 isn't one of those shown (has 150bhp)
The second listing does include the B20A7 though...Then this is the one that did fit but had the wrong plug:
http://www.ebay.co.uk/itm/251690158238? ... EBIDX%3AIT
Having removed pre/post-facelift, I wonder if the difference is B20A7 (injection) versus non-injection? B20A7's could be ODB0, carb B20A's might be something completely different????