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Upgrading Valve Springs, Guides And Retainers

MattyP

By MattyP,
in General Maintenance

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MattyP Proficient

MattyP

Posted
Posted

Earlier last week my car R broke down, and when I got home I found the engine to be making some weird rattling noises. I've been told its the retainers, and that they need to be replaced.

At the same time I thought I might as well do the springs etc, however reading up some of the blurb they have on Nengun the HKS and Tomei ones say they are designed to be used with their upgraded camshafts. I however don't plan on upgrading them, so my question is would I be harming the engine parts in using upgraded springs etc on normal camshafts?

Or is my best bet to just go to Nissan and buy factory ones instead (which would probabyl cost as much as aftermarket ones or more).

Cheers

djr81 Grand Master

djr81

Posted
Posted

Two things.

1. Stock parts are designed to work together as a whole. Rb26's don't suffer from valve float like say a Ford straight six - so the stock valves are good enough. It is common not to upgrade the springs when you upgrade the cams anyway, so not much point on stockies is there?

2. You can test the springs to see if they are still the right spring constant. So maybe do that before spending large on stuff you don't need.

Oh and think about reshimming the valve train if you are pulling it all apart.

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