OST-070: 7AGE for an N2 Levin

[oldeskewltoy]

(08-13-2020 08:48 PM)oldeskewltoy Wrote:  

(08-11-2020 09:48 PM)Vaptor Wrote:  Looking forward to this build, please post as many details as possible, also about the block assembly, would be nice to have a good build tread about a 7AGE, as I am going to build one for my car

Will you be using a 4AGE Oil pump?

yes... with a few minor modifications (more later)

and now its later....

The OEM oil pump will have a number of modifications to help this mild mannered beast stay lubricated. As I've done before, this pump got mildly ported, smoothing the transition at the entrance to the pump(3), tapering the exit from the pump body(2), and gently working the inner radius of the pumps exit(1).

(photo from OST-053)

I also installed the SQ pressure relief valve spring kit (Australia)




Along with all of those mods, this pump also need one or 2 more......



The 7A block, being taller, has the oil galley slightly further out then the 4A. The 7A pump matches the outlet, but has a few "flaws", the pump gears are not as thick, (so they can't use Toda pump gears) and it fits the "wrong" lower timing cover.

The 4AG pump has a flaw as well....(when using with a 7A block), the outlet isn't in the correct location.


So beginning with a 4AG pump I added 2 more radii, one inner(on the block), and one outer( on the pump) to remedy that




more to come.....