Low Oil Pressure on Hard Deceleration, 2.056L with Dual Carbs Options

[Spoke]

I bought this allegedly running-when-it-was-pulled 2L engine last year to upgrade to 2.056L just to find out it already had 96mm P&C.

Internals turns smoothly so I thought I'd do the flame test and clean the engine and put it back together. The engine runs strong and smooth.

As I started driving it harder I noticed on fast deceleration the oil light would come on.

If I let the engine speed come down naturally from about 2k, the oil light doesn't come on.

Last night coming off the highway running about 3.2k, I immediately shifted into neutral to let the engine slow on its own, the oil light came on for a few seconds as the engine was now idling.

I don't have an oil pressure gauge on it to see where the oil pressure is during operation.

Any ideas of what to look at?

[914Bryan]

I agree with what Ethan said about overfilling the engine about a half a quart. My 2256 was experiencing the same condition, especially on a left turn when the engine was at operating temp. No tuna can installed but by overfilling the sump, there will now only be a momentary flash of low oil pressure, but it quickly recovers.

Hope it helps.