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Reply to "Oil Pressure Concern"

 

Michael McKelvey posted:
 

...From time to time, my oil pressure will drop to zero and then after a bit come up again...

 

This is not at all normal.

Many of us are running external filters, coolers, mocal sandwiches and all manner of wacky plumbing. None of that stuff should cause zero oil pressure, which is generally considered a very bad thing and one of the leading causes of dead engines.

Is there any pattern to 'from time to time' ? Completely at random or after hard cornering, maybe? That would support Stan's hypothesis that the oil pickup is seeing air when it should be seeing oil. The main reason for an extended sump is not to add more oil to the system, but to supply a deeper well of oil, so the pickup doesn't go dry under hard cornering or braking. BUT, the pickup needs to be altered when an extended sump is added to take advantage of that deeper well. Maybe, on your engine, it never was, or it was but broke somehow?

 

Michael McKelvey posted:
 

...the oil level when this happened...was a bit over the add oil level. I have read that this is a good level when using the add-on sump...

 

I have never read that.

But, I'm not the most well-read dude on such matters. Or even the second most well-read dude. I HAVE been lead to believe that the oil should be filled CLOSE to the 'full' mark, but just a bit short thereof. The story goes that if you fill all the way up, the oil can get churned up by the crank and turned into the same stuff that Starbucks uses to make cappuccinos.

 

Last edited by Sacto Mitch
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