volvo TAMD41a - oiling issue on rocker shaft
 

Hi there, TAMD41A, doesnt look like enough oil is making it up to the rocker arm. Is there a an external supply line I can check? Oil psi has been verified with manual gauge.

Thanks

Rocker arm
 

Curious how you concluded not enough oil was getting to the rocker arm shaft?

Whole upper is dry, like an engine that stood for 4 years. There was a squeak, and I worked my way down with WD40 to see where it was coming from. on the 3rd set of rockers it went away - so it was dry despite being run hard. There was not a sign of oil in the rocker area... looked very dry