Honda/Acura has changed the valve keeper and retainer design, starting sometime in the '04 model year. do not mix and match these parts with the older design retainers & keepers!!! this also means if you have a late '04 to '06 (and 07?) motor/head, you cannot use the newer keepers with aftermarket retainers. you either have to reuse the OEM retainers & keepers as a matched set, or buy a set of the older-style keepers.
the newer setup is identifiable by the distinctive arrow marks on the keepers, as well as (at least on the RSX-S) the light blue-green intake valve spring and orangey-brown exhaust valve spring.
Thanks to Jeremy@InlinePro for pointing this out and saving my ass on a cam install today. and also thanks to kommon_sense for originally posting the ServiceNews article:
http://www.in.honda.com/Rjanisis/pubs/SN/B060400.PDF
the newer setup is identifiable by the distinctive arrow marks on the keepers, as well as (at least on the RSX-S) the light blue-green intake valve spring and orangey-brown exhaust valve spring.
Thanks to Jeremy@InlinePro for pointing this out and saving my ass on a cam install today. and also thanks to kommon_sense for originally posting the ServiceNews article:
http://www.in.honda.com/Rjanisis/pubs/SN/B060400.PDF