Running Cam in?

[Meatball]

Hi folks,
Whats the genral rule of thumb for running a new cam in? do i need to get some miles on it or is it ready for beans straight away?
cheers

[ray_von]

Meatball said:

ready for beans straight away?

[350Matt]

As long its been broken in when it was changed ( 2000prm for 20mins) then its fine to thrash away

Matt

[Meatball]

350Matt said:

As long its been broken in when it was changed ( 2000prm for 20mins) then its fine to thrash away

Matt

It was....cheers chaps

[Pink_Floyd]

What does the runing it at 2000rpm for 20 mins do? Is this true for all cams or just the ones in the v8?

[350Matt]

A brand new cam is still quite soft as they are designed to work harden in situ, getting the revs up raises the oil pressure to flood the cam with oil so it doesn't overheat as it hardens.

Raising the speed also reduces the hertzian stresses over the lobe tip while its still soft


This is true for all engines

Matt