I have just rebuilt my buick 3.8L engine and it seems to be running pretty good now. I got the carb tuned after much trouble, but now I have a new problem. I searched and didn't find anything on this specific motor, and not sure if I can take advice on another motor since this one seems to be quite unique.
On cold startup, oil pressure is between 30 and 50 psi at idle. After driving for a little while (5-15 minutes) I noticed a low oil pressure at idle (around 12.5 psi). At about 1200-1500 RPM, all is good again. When this first happened, I thought the oil might be thin from the engine break-in, so I went ahead and changed the oil and filter. Same thing happened after the oil change.
The first time this happened, I immediately stopped and checked the oil level which turned out being fine. When I started it up after sitting for about 5 minutes, there was white smoke from the exhaust only on start-up. Should I switch oil, or do you think I have another problem? (using 10w30 now)
TravisT
On cold startup, oil pressure is between 30 and 50 psi at idle. After driving for a little while (5-15 minutes) I noticed a low oil pressure at idle (around 12.5 psi). At about 1200-1500 RPM, all is good again. When this first happened, I thought the oil might be thin from the engine break-in, so I went ahead and changed the oil and filter. Same thing happened after the oil change.
The first time this happened, I immediately stopped and checked the oil level which turned out being fine. When I started it up after sitting for about 5 minutes, there was white smoke from the exhaust only on start-up. Should I switch oil, or do you think I have another problem? (using 10w30 now)
TravisT