Pressed Steel Rocker - re-bushing help!

[moita]

Hi,

I have succefully taken off all bushes from pressed steel rockers (850).

I have found that I need to pre-drill oil holes before fit again the bush, my question is:

- Where do I do this 3 mm hole?

The original bushes are different from new ones. Where is the screw drivers is where the hole is, and I place a bearing outside in same position.

Can anyone help me?

Thank you.

[Vegard]

You don't need to drill the bushes. Where is the oil suppose to go? Only the S rockers had an oilway to the adjuster screw. I guess they just used the same bush at the factory.

[moita]

Great, even easier and the internal shape, should I care about its position?

[Hipwell]

I was under the impression, maybe wrong, that oil weeps through the rockers.

[cooper64]

the oil should get to the adjuster screw and run down the thread to lube ball and pushrod ,that is why there is a hole in it and with cast rockers must be drilled from screw adjuster end of rocker to bush then outer hole filled in end of rocker

[Polarsilver]

Sorry this is Off the Post subject..can i ask a Question ..are these aftermarket Roller Rockers also drilled with an oilway so as oil reaches the Pushrod Cup ?

[GraemeC]

Yes.
Or at least the MED one I have in front of me is:

[moita]

Thank you all for the answer so far.