Rover V8 Rocker shaft Pedestal Groves

[stevesprint]

I’ve have two sets of rockers, one set has groves on the insides of ALL the pedestals and the other set doesn’t have the groves. The groves are similar on all pedestals and run from top to bottom on one side of each pedestal.



I can't see how the groves will make any difference as the oil feeds up the bolt hole into the rocker shaft, but has anyone noticed the goves and have any thoughts on pros or cons?

Cheers
Steve Sprint

[Classic Chim]

Other than oil movement
Expansion maybe.

[Boosted LS1]

As above, it probably promotes oil flow to the underside of the shaft which is the part that usually wears quite badly.

[stevesprint]

Boosted LS1 said:

As above, it probably promotes oil flow to the underside of the shaft which is the part that usually wears quite badly.

Thanks for the replies, agreed the groves could promote oil flow but Its confusing because the pedestals don't rock on the shafts so why promote oil flow for the pedestals?

Edited by stevesprint on Wednesday 29th November 00:11

[Boosted LS1]

Ooop, it's the rockers that wear out the shafts. Maybe the grooves help oil flow outwards towards the springs? The oll for the rockers flows within the shaft iirc?