Momentum

My buddy has an h22a1 vtec swapped into a 92 civic and it needs a new alternator.

2 questions... what is the engine code for the h22a1 vtec? (8th vin digit)
Also.. will an alternator from a non-vtec work on the vtec?


thanks

vlang29

the alternator will work

Momentum

You sure?

When i called partsource the par numbers were different...
Price of the vtec on is almost $100 more!

Hawkze_2.3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Momentum &raquo;</TD></TR><TR><TD CLASS="quote">You sure?

When i called partsource the par numbers were different...
Price of the vtec on is almost $100 more!</TD></TR></TABLE>

H22 has a 6-rib pulley system, while the H23 (non VTEC) has a 5-rib system, the alternator is the same. He is sure

pentaq

Its not a problem to swap pulleys

Momentum

Ok and what year USDM prelude would the H22A1 come in?

Also why would they ahve different alternator part numbers for the 2?

vlang29

92-96
not positive why the different #'s, what i do know, is that i had an h23 that the alternator went out on. i took an H22A alternator, swapped the pulleys, and haven't had any problems since.

Momentum

So for the 92-96 preludes came two engines... H22A1 vtec and H23 non-vtec?

And alternator is the same?
ANyone have any idea what the engine code (8th vin digit) for both engines is?

I would have to take the pullay off the old alternator and put it on the new one though? How easy do they come off/stich over?

vlang29

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Momentum &raquo;</TD></TR><TR><TD CLASS="quote">So for the 92-96 preludes came two engines... H22A1 vtec and H23 non-vtec?</TD></TR></TABLE>
and also F22 non-vtec SOHC

not 100%, but i believe the thing to look for is: BB1 for vtec, and BB2 for h23

Hawkze_2.3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Momentum &raquo;</TD></TR><TR><TD CLASS="quote">So for the 92-96 preludes came two engines... H22A1 vtec and H23 non-vtec?

And alternator is the same?
ANyone have any idea what the engine code (8th vin digit) for both engines is?

I would have to take the pullay off the old alternator and put it on the new one though? How easy do they come off/stich over?</TD></TR></TABLE>

Yeah, 3 engines (F22 SOHC, H23 DOHC, H22 DOHC VTEC, Prelude S, Si and VTEC respectively).

Why are you so worried about VINs?

Yes, take the pulleys off and swap. Any auto parts store can do it minutes if you don't have the tools. Or you can just use a 5-rib belt on your H22.

vlang29

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Momentum &raquo;</TD></TR><TR><TD CLASS="quote">I would have to take the pullay off the old alternator and put it on the new one though? How easy do they come off/stich over?</TD></TR></TABLE>

correct. They are very easy to change. spray the nut with some PB blaster penetrating oil, will make it even easier

vlang29

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hawkze_2.3 &raquo;</TD></TR><TR><TD CLASS="quote">Or you can just use a 5-rib belt on your H22.</TD></TR></TABLE>

is that ok on a 6-rib A/C compressor pulley?

Hawkze_2.3

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vlang29 &raquo;</TD></TR><TR><TD CLASS="quote">

is that ok on a 6-rib A/C compressor pulley?</TD></TR></TABLE>

I don't see why not?... I use a 3-rib belt with my D-series alternator with a H 5-rib crank pulley. 5 vs. 6 ribs can't be enough of a difference to cause a problem.