Roller rocker gear lubrication
Turbo Mini Forums

Just built up a new engine with 1.5 roller rockers and may or may not have a problem.

After the initial 20 mins run to bed in new cam there didn't seem to be a lot of oil on the roller rocker gear . So run the engine with the rocker cover off and there is oil to the rocker shaft and it oozed out between the roller rockers and the solid spacers. But what lubricates the roller tip? Should there be a lot of splash lubrication going on.

Standard rocker gear uses a spring as a rocker spacer , so oil will run out onto the shaft but does the use of solid spacers stop this happening.

Am I being paranoid , how much oil should be flung around and what lubricates the roller tips. Just run engine again and run my finger over the top of the roller rocker through the oil filler cap and it just seems dry.

Thanks

You dont need much oil to the tips. Oil well when you assemble and it should be fine.

Don't worry Roy, when the engines running on the road with revs there's. More than enough to lubricate. A battleship engine

id have thought when you fill the engine with oil it "floods" the rocker cover giveing the whole lot a good bath but yes ive had the cover off on mine and basicly anything above idle and it flicked oil everywheel makeing a dam mess so thers plenty getting around

rollers do require minumal oil flow vs the slideing action of non roller types thing journal turbo vs ball bearing

I suppose what I was saying was, Oil runs along inside the shaft and lubricates the rocker on the shaft but then has to ooze out . One way has a rocker post and the other has a solid spacer to no real exit point for the oil.
However on the standard rocker gear the oil can leak out onto the shaft as there is no solid spacer just the spring does this allow more splash lubrication.
Thought about putting a little notch on the end of the solid spacer to allow more oil to bleed out after its been used to lubricate rocker on shaft. Yes or no?

Sorry, I misunderstood. There should be enough clearance with the solid spacers that this ins't a problem. In fact, much more clearance than the rocker bushing on the shaft, so the oil will still be able to escape.

Edited by PhilR on 24th Feb, 2015.

I would bin the spacers and put the springs on. That will help quieten them down a bit

You know that makes sense ,Roy.

So its spacers out and springs on?

In theory, the spacers would get rid of any drag caused by the springs. In reality, the difference is so low it's probably not worth the time to set the spacers up. Springs work fine and ensure the rockers in the same position all the time. Keep the springs.

Edited by PhilR on 24th Feb, 2015.

Right then , spacers out and springs in.
Thanks