Oli light comes on and noise

[Bujdi]

Hi!
I have a 2004 Toyota Avensis 1.6 VVTi petrol engine car (260 thousand km) I bought this car damaged. Because of the demage plastic parts were  head, causing the  head had to be renovated.
I experience the following problem. When engine is hot (after about 5 km ) it will be louder and the  oil pressure light comes on. With the engine off and immediately restart the , the effect will end( no light, no noise from engine), but after 5-6 km its starts again.
Oil filter, oil pump replaced.

[ajaz]

Have u tried changing oil and filter?? 07828863559 ring me i will explain what steps you need to take!! 

[Bujdi]

Yes.This step was first i taked. A changed the filter, and now there was 5W40, and now 10 w 40.

[+robster+]

losing oil pressure via a loose tolerance bearing? renovated head?big end?cam related gallery?

cold thick oil keeps pressure

hot thin oil passes through the gap causing pressure drop?

vvti related?

 

no other symptoms?