Originally Posted by gmcaseyf
i have a 1988 chevy k5 blazer with a chevy 350 that i built in it. the engine is bored .030 over, has a mild cam, and a high volume oil pump. the motor has about 1000 miles on it and sat for about 6 months at times without being run. recently it started smoking(oil smoke) out of the right side of the motor only. i changed the oil and for some reason added a type of restore product to the oil to try to remedy the smoking. after this, the oil pressure is about 60 at idle and pegs my mechanical guage at 100 under throttle. this worries me a bit. any info would be much appreciated.
What type of restore product. The bypass valve should open and vent excess pressure, if you're getting over 70-75 psi, I'd be concerned that either the bypass is jammed in a closed position or the product you put in is so thick it can't vent quickly enough to where the valve has any authority over system pressure anymore.
An engine that's sat for 6 months has had plenty of time for corrosion to go to work on the cylinder walls and rings. It's likely that there is damage to one or more of the bores. Auto engines are shut down by killing the electrical ignition. This leaves fueled cylinders and cylinders with combustion products in them, unless treated for extended shut down with a top oil product it's highly likely that corrosion has occurred or gums and varnishes formed gluing the rings in place. This is not even to mention what a dry start up can do, especially if you helped it start with either.