4G crank pulley vs 5G? - Honda Prelude Forum

H22a_Assasin · 03-13-2003, 10:56 AM

Are the crank pulleys from a 4G the same as on a 5G? H22a1 vs H22a4.

Reason being, is that the crank pulley on my H22a4 looks like it uses a 6 ribbed belt, while my A/C and ALT uses a 5 ribbed belt? What gives? There's extra room on my crank pulley when I put the belt on.

(A little background, it's an H22a4 in a 4G Si) I re-used my 4G ALT and A/C, and even P/S (just shaved the bracket a bit).

Can someone show me a picture of a 4G stock crank pulley, and a stock 5G stock crank pulley? I need to figure this out...since the crank bolt backed out a few times, and it looks like it's doing it again. Hmmm?

Satan_SRV · 03-13-2003, 11:02 AM

the problem you arer having is that you are using an H23 crank pulley.

All H22a crank pulleys are the same.

It's not by generation, it's by engine design.

Satan_SRV · 03-13-2003, 11:03 AM

Err sorry i read it wrong. You are using H23 pulleys on the PS and Alt....which are different than H22A ones, same reasoning.

4bidden · 03-13-2003, 11:05 AM

Si pulleys have one less rib than their VTEC counterparts.

H22a_Assasin · 03-13-2003, 11:28 AM

DOH!!!!!!

Okay, I retract everything I just said. LMAO!

So what do you think is a better solution?? Use an H23a crank pulley? Or upgrade my P/S, ALT, and A/C pulleys to H22 status? (AEM or UR?)

Satan_SRV · 03-13-2003, 08:45 PM

I'm guess the H22a ones have an extra rib to be more stable/secure at high rpms.

Satan_SRV · 03-13-2003, 08:45 PM

just get like H22a AEM accessory pullies or something

Zimmlude · 03-13-2003, 08:59 PM

Here's one for you. On an H23-->H22 swap how can use use the VTEC crank pully. I know you can pull the pullys off the PS and the Alt but how can I change the pully on the AC? I'm thinking I will just use the H23 pully. I might end up using the VTEC alt though as I have heard it is higher amperage. (kinda thinking out loud)

4bidden · 03-13-2003, 09:14 PM

I am currently running all H23 pulleys/accessories. Works fine.

H22a_Assasin · 03-14-2003, 10:08 AM

Quick question. Any problems running an H23 crank pulley on the H22? Cuz I have it in my garage, instead of having to order a pulley set from AEM or UR.

4bidden · 03-14-2003, 10:42 AM

Quote:

Originally posted by 4bidden
I am currently running all H23 pulleys/accessories. Works fine.

Absolut · 03-14-2003, 12:10 PM

Quote:

Originally posted by 4bidden
I am currently running all H23 pulleys/accessories. Works fine.

Same here:
JDM h22
USDM h23 crank pulley
USDM h23 alt, ac and ps

0 problems so far. (10k miles)