Low Idle Oil Pressure, Wanting to find out how easy it is to install Tangerine's oil pressure relief kit Options

[Highland]

The engine is a fresh rebuilt 2056 stock D-jet engine running Brad Penn 10W40. Once the oil gets warm the idiot light comes on and the oil pressure gauge (electrical VDO) goes to almost nothing.

Thinking about trying Tangerine's Oil pressure relief valve:

http://www.tangerineracing.com/oilpressurerelief.htm

Is it pretty easy to install with the engine in the car? Does it slide in easily or does it need to be pressed into the bore?

The description says it bypasses the oil cooler so is the oil always going through the oil cooler even on cold start?

One more note. I misplaced the engine's original plunger and spring assembly so I bought a used one. I have since found the original spring and plunger. Just wondering if anyone thinks putting the original part back in will fix the problem. The original engine was built as a 1.7 and I don't recall it having this problem.

[MichaelB]

Hi, another variable to consider is oil temp. Pressure will drop and the oil gets hot. I;m running a 2056 with d-jet and Raby 9590 cam. Newly rebuilt motor, d-jet not optimally adjusted and running lean and timing not optimally set all can result in increased oil temps and decreased pressure especially at idle.

For me a combination of the below worked.

1. changing exhaust so I had a common collector and could put in wide band oxygen sensor and then adjusting the mix after replacing the diaphragm in the MPS with the excellent tangerine diaphragm (they are all bad if original).

2. Get real oil temp gauge and head temp gauge.

3. Finding timing that the engine likes, mine was around 28-29 at 3500. Some have needed less than 27. I did this trial and error, change and test drive as I do not have a dyno. Watching both oil and head temps.

4. Check and see if your engine had the pressure relief valve which I think is under cylinder #1 on the side (typing from memory) . Not all cases had them. Make sure oil is not getting past at normal pressure. Mine had a copper plug put in by PO who had been running hydraulic lifters. The seat in there can be rough and leak.

5. Putting some miles on the engine.


There are lots of threads dealing with all of the above.

I did buy and install the tangerine oil pressure relief valve which is a very cool product, but it did not help my temps and low idle pressure.