Antique Car Breaking In New Piston Rings. G piston rings replacement parts car parts. When should I change the oil and re-torque the head bolts.
When should I change the oil and re-torque the head bolts. When youre ready to put on the replacements you need to stretch them with your piston ring tool as you fit them over the piston. Even if you plan on running synthetic oil you should break a new engine in with a conventional mineral-type engine oil for the first 4000-plus miles.
I have only run the car around the block and left it idle for 20 minutes.
Such an engine would seriously wear the piston and rings before any break-in period could be completed and so they are clearanced to go into immediate service with no real break-in at all. I put in 30 weight oil. Breaking in piston rings Breaking in piston rings. However you need to be very careful that you dont stretch them so much that they break if they do new piston rings are very cheap.