2H Hi oil pressure

[Davetavita]

I have a 2H-T motor which was fully rebuilt now with 30k kms on the build.
It received the longer oil relief valve upgrade during the build.
On cold start the needle on the oil pressure gauge is between high and walking off the gauge.
There is a constant tapping sound when powering on and drops away when I lift off the pedal.
When the engine reaches operating temp, oil pressure sits on high the noise is not there.
Any ideas please?

 

[rkymtnflyfisher]

Diesel Tech / 24 volts

BJ/HJ diesels (3B, 13BT, 1KZ, 1HZ, 1PZ, etc) and other diesel conversions (ie: Isuzu, Hino, 4BT, 6BT, etc)

forum.ih8mud.com

Might try cross posting here in the diesel section, you might get more traction on responses.

 

[charliemeyer007]

Can you swap in a direct read oil pressure gauge to confirm the pressure? Diesels make a lot of noise when cold. Seems like enough milage if something was going bad it would have by now. Oil test is like $50.