In my 1990 Chevy K1500 with the 350TBI, I recently overfilled the oil crankcase approximately a 1/2 quart on purpose.
No harm done.
But when I drove it last night and today, I noticed an increase in oil pressure according to my oil pressure gauge on my dash.
I usually get 30-32psi of oil pressure when cold at start up. Once fully warm, it settles around 27psi. Now with a slight over-fill, I'm getting 35-38 psi at start up and it settles to around 32 at idle when warm.
Why am I seeing this sudden increase in oil pressure?
My pressure gauge has always read the same, regardless of what weight oil I put in it. I've even been a quart low in the summer, and put 20w50 in it. Somtimes in back to back top-offs, and the OP has never moved from where it typically reads.
Now all of a sudden, I'm seeing an increase due to a slight over fill....is this telling me something? Maybe the oil pick up tube has a crack or break in it or the o-ring that connects to the metal line is shot and now it's "cover" in oil and the engine is picking up that oil, instead of sucking air? Just a guess.
Anyone ever experience this or got a guess as to what is happening?
No harm done.
But when I drove it last night and today, I noticed an increase in oil pressure according to my oil pressure gauge on my dash.
I usually get 30-32psi of oil pressure when cold at start up. Once fully warm, it settles around 27psi. Now with a slight over-fill, I'm getting 35-38 psi at start up and it settles to around 32 at idle when warm.
Why am I seeing this sudden increase in oil pressure?
My pressure gauge has always read the same, regardless of what weight oil I put in it. I've even been a quart low in the summer, and put 20w50 in it. Somtimes in back to back top-offs, and the OP has never moved from where it typically reads.
Now all of a sudden, I'm seeing an increase due to a slight over fill....is this telling me something? Maybe the oil pick up tube has a crack or break in it or the o-ring that connects to the metal line is shot and now it's "cover" in oil and the engine is picking up that oil, instead of sucking air? Just a guess.
Anyone ever experience this or got a guess as to what is happening?