I know that I have asked this before but I wonder if everyone could rack
their brains.
My motor starts fine the pressure goes up to 5.5 bar for about 2-4 minutes.
It then falls with not loss of rpm to 1.5 bar for about 2-5 minutes.
It then goes back up to 5.5 and stays there without a problem.
The oil pressure sender is working fine and is the gauge - I have tested
them both. The engine runs smooth and produces sufficient power. I run
avgas because the premium mogas here is 95 or lower octane.
On a hot day the pressure drop is minimal on start up. So I am thinking
that maybe this has something to do with viscosity. Perhaps even what Ira
mentioned - lead accumulation in the oil tank.
Any ideas as to the cause?
How much damage will this do? Clearly this is not ideal but it could be one
of those problems where the "solution" ends up being always out of reach.
Will
Colombia
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