around 200 miles on my stock rebuild. Great oil pressure, usually stays between 50-60 warm. Whenever I press the brakes even slightly more than normal, I lose about 20PSI of oil pressure, then it jumps right back up. I'm using Chevron 10W30 by the way.


I did a search, and figured my oil pump pickup tube had fallen off. Bummer.

I drained the oil, and pulled the oil level sensor in the pan. Looking through, I can see the pickup still in its correct position, I even pushed a screwdriver in there to see if it was loose or wiggle around, nope its as tight as it was when I installed it.

Any ideas? The level of oil was full also.

 

Okay, so it does not lose pressure when the brakes are actually applied, but if I push in the clutch and remove my foot from the gas, as the tach falls back down and gets to the 1K mark, the oil pressure does a quick dive, then comes back up. Maybe 10-20 PSI difference.

I guess its ok as long as there is still oil pressure, I have an autometer oil pressure guage on the way to try and be a little more accurate with it.

 

Got a baffle in that thing?

 

sounds kinda normal but u did say it has only 200 mile

oil pressure will rise and fall wuth rpm change but i d k how much a significant fall is

 

Just the stock pan/ windage tray.

 

Do ya know how far the pickup is from the pan floor?

 

just a lil over 3/8"

 

Can't think of anything else except the engine almost stalls and the IAS motor catches it and the pressure is dropping like ya shut the key off or ya may have a bad ground or loose connection to the dash guage's that only happens when braking,