I have been doing a bit of research on the by pass oil filter that was originally fitted to Holden "grey" motors.
I came across this article on the internet, and I assume it would be OK to post it here as they have used several images of mine.
OIL FILTER ARTICLE
the two photos below show a Nasco cartridge for the AC filter.
And the 5 photos below show the Ryco R4 cartridge for Holdens with an assembly guide..
Grey Motor By Pass Oil Filter
Grey Motor By Pass Oil Filter
ourtouringpast.com THE vintage caravan restoration website
and home of The National Caravan Museum.
and home of The National Caravan Museum.