Ring Scraping Cylinder Wall?
Thread Starter
Instructor
Joined: Jul 2003
Posts: 217
Likes: 1
From: Atlanta GA
Ring Scraping Cylinder Wall?
I just started putting the pistons back in my '93 LT-1 and there is a scraping sound when I turn the crank over. Looking at the photo below there are three scratches. The piston and cylinder are well oiled. Is the ring scratching the cylinder, or is this normal?
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
it's normal for new rings to make a scraping noise. Be sure you don't dip the pistons in oil, or your rings will take longer to seat.
It is preferred to oil the cylinder, and install the pistons dry.
I f you will be storing this engine, it is permissible to use marvel oil in the spark plug hole and the engine turned over withouth the plugs in. just don't put in too much.
It is preferred to oil the cylinder, and install the pistons dry.
I f you will be storing this engine, it is permissible to use marvel oil in the spark plug hole and the engine turned over withouth the plugs in. just don't put in too much.
