Oil Pressure low?
Posted: Thu Dec 18, 2003 9:44 pm
Hi guys,
I've been running Miss Daisy '49 usually for a good stretch of 2 hrs. at a time pushing snow. It does a real nice job of levelling flat even after lots of traffic up and down the drive.
After the 2 hrs. is up I'll look down at the oil pressure and it looks to be on the low side even when working. There were no numbers on that gauge so I stole the one off of Frank '67. That gauge starts at 0 and goes to 75 with 15psi graduations on the gauge. When I fire up it sits right in the centre and will stay there for about 20min. then will begin to work it's way down, right down to 15 by the time I'm ready to put her away. My manual says 30-35psi at 100rpm above high idle, looks to me like I only have half that.
I'm thinking of putting in a different oil, say 10W/40 as a start to see if things will improve, remember I put fresh rod bearings in this one, the mains looked to be alright. I have been running straight 30 in it.
Should I see an increase in oil pressure, say if I'm really loading her?
What do you guys think about the 10W/40?
I've never done too much tinkering around with different oils, except running 5W/30 during winter for an Onan engine.
I'd hate to lose my little work-horse this early on, I've probably only got 10 tp 12 hrs. on it.
The engine sounds OK to me.
I've been running Miss Daisy '49 usually for a good stretch of 2 hrs. at a time pushing snow. It does a real nice job of levelling flat even after lots of traffic up and down the drive.
After the 2 hrs. is up I'll look down at the oil pressure and it looks to be on the low side even when working. There were no numbers on that gauge so I stole the one off of Frank '67. That gauge starts at 0 and goes to 75 with 15psi graduations on the gauge. When I fire up it sits right in the centre and will stay there for about 20min. then will begin to work it's way down, right down to 15 by the time I'm ready to put her away. My manual says 30-35psi at 100rpm above high idle, looks to me like I only have half that.
I'm thinking of putting in a different oil, say 10W/40 as a start to see if things will improve, remember I put fresh rod bearings in this one, the mains looked to be alright. I have been running straight 30 in it.
Should I see an increase in oil pressure, say if I'm really loading her?
What do you guys think about the 10W/40?
I've never done too much tinkering around with different oils, except running 5W/30 during winter for an Onan engine.
I'd hate to lose my little work-horse this early on, I've probably only got 10 tp 12 hrs. on it.
The engine sounds OK to me.