BoosteD16

I get a D16z6 engine... When i start the car, and the engine is cold there is 2,5 - 3 Bar oil pressure...

When the oil warms up, the pressure decreasing.. So I have to rev the engine up to 3000RPM to get 0,5 Bar oil pressure.. Over 3000 RPM the oil pressure is riseing up to max 2 bar. I have a K03s turbo on the car, but i used the same setup on a D14 engine, the turbo, and the oil pressure gauge is OK, when i swap this D16z6 engine the problem occurs..

What can be the problem?

- The oil pump is good, I get it from another engine, that works well, and i measured the gaps, so the pump is OK.
- The oil pumps pressure spring is OK.
- I replaced the oil (15w-40), and the oil filter too..
- New crankshaft bearings
- New Cylinder head gasket

The crankshaft and the connection rods has 0,50 oversized bearings.

Where can the oil leaks inside the block ? or in the cylinder head ?


THX !

perseverance

15w-40? no.. u should be using 5-30.

perseverance

5w-30***

BoosteD16

This oil is for the test time.
I want to use some 0W-60 or something oil, that can handle the lots of heat...

pdiggitydogg

that oil is way too heavy for winter weather...
Have you inspected your pickup tube and gasket?

8urv8

I run Moble1 syn 10w30 works great in my race car. Did yoy check your main bearings?

8YourV8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8urv8 &raquo;</TD></TR><TR><TD CLASS="quote">I run Moble1 syn 10w30 works great in my race car.</TD></TR></TABLE>

Quoted for truth.

Also, Royal Purple (obviously) 10 or 5w30. 5w30 for colder regions.

also, CHANGE YOUR USER NAME!!!!! lol

BoosteD16

i think not the oil is the problem...
There are NO oil pressure at 3000RPM... The oil lines, gaskets are okay...
Everithing is okay... This is a hard problem... The bearings are new...

Luserkid

Like said did you check the pick up? Also what type of oil pan are you using and is there enough oil in there?

BoosteD16

I got oil pressure!

The gauge was the bad! I bought a new one, and it shows the correct value..
Idle - cold engine - 5 Bar
idle -warm engine 1,2 Bar

On 3000RPm - 4,3 Bar

slammedEM1Si

why use a used oil pump on a rebuilt bottom end.

though you said you checked the internals, it might be going bad.

check your pickup tube and stuff. blow it out with shop air or w/e. If you have to rev it to build oil pressure, something is about to give.

doublejz

reused oil pump on a built motor... i see the outcome of this already.

I did this once, tried to save some money and stuck a used oil pump in... I landed up replacing bearings along with the oil pump shortly afterwards