jonalman

hello, i have a new 347 stroker with less than 100 miles on it, in a 93 hatch. i am having problems with my oil pressure dropping when i come to a stop after the engine was under a load. i will be driving, and will let the car out of gear, to come to a stop sign, and the idle and oil pressure will just plummit. i understand when the idle of the car gets low the oil pressure drops also, but when i say drops, the oil pressure gage bottoms out. when i let it sit at an idle, without the motor ever having a load on it, the oil pressure is fine.. i dont have any idea why my oil pressure is inconsitant. does anyone have any ideas?

aode08

How is the oil level and how many quarts are in there?

What oil pan do you have? factory 5 quarts or canton 6/7 quarts?

Who did the 347 build? Was the Crank New OR TURNED?


Ive seen STD Bearings used on .010 turned cranks. and just because a bearing says .010 dont meen it is.

jonalman

5 quarts, and the level is fine

aode08

ok, the next step would be to verify the pressure with a Mechanical Pressure Guage, they are at Autozone and Pepboys for under $20

67mustang302

Sounds like maybe the pickup is too high, hits the brakes and the oil sloshes away from the pickup. Stock pan, or is it a baffled pan? And does it do it when you corner hard also? Definately check it with a good gauge though, stock gauges are notoriously innaccurate,

1985stang

+1, stock gauges are terrible. My oil pressure read on the H pretty much all the time, so i put in autometer mechanical gauges. Come to find out, even with the stock gauge unplugged it still reads having pressure [&:] A lot of good that does...