Conway_160

iTrader: (1)

Now that the engine is out, and the weather is amazing. Cool and rainy I took some measurements to see what the ring gap was set to by the engine builders and try to figure out what is going on with piston #3 and why its so low on compression. Results:




Number 3 is not liking life, which just happens to be the hole that ate the spark plug and is down almost 100 psi in compression. When I put in the top ring I noticed that the ring does not set flush in the hole and right where the two ends meet up the right side bows in a little and you can see light from underneath. I will be sending in the block to get inspected to make sure the holes are good go, in the mean time I have new rings on the way and @bealljk is letting me use his ring gaping tool.

Also I have no idea where this "Engine Builder" came up with his gap numbers. Instead of using Weisco's .0050 and .0055 ratios, they were using ~.00529 and ~.00687 to me seems a little loose.

OldManZ350

iTrader: (23)

I set my Motor Piston Rings to

Top Ring .021"

Bottom Ring .025"

There is No Reason that you can't hit the Ring Gap "on the Money" for every Cylinder with a Ring File Tool!

To MISS by .006" is just Carless Garbage Work.....