wishicouldbe wrote:I've always heard the chromoly rings take along time and people have this trouble often.. But I don't know about the plasma moly
wishicouldbe wrote:What if it wasn't honed with the right grit what can I do to fix it now without pulling it back apart. I've heard of using Bon ami
JoePorting wrote:If you're using synthetic oil, replace it with regular 20/50 oil and do a number of full power runs to reseat the rings. I found situations where synthetic oil unseats the rings. I think there needs to be a certain amount of friction between the ring and cylinder to keep the rings seated. Synthetic oil is too good and unseats the rings IMO.
wyrmrider wrote:as others have said
try breaking it again
if this vehicle is streetable
warm it up
make a hard pull up to the legal speed limit
then back off the throttle and let it coast down
do this about 10 times
if your cylinders are glazed you are SOL
if track only do not just click it off, allow it to coast down to create some vacuum, pull up some oil, and help flush crap away
then do it as said above
Now how come engines that have not been plate honed and have run for many laps never seal up and even after 2 or 3 years of running and have poor leak down numbers. . . I have seen engines on the dyno never seal up after many pulls.
.003 is a disaster with the deck plate on. Personally I would consider .0015 out of shape a disaster when measured with a deck plate in place. The deck plate will simulate how that cylinders shape will actually be when the heads are on. There is significant cylinder shape changes with and without a plate on. All blocks that leave my shop, when finished are plus .0002 and minus .0000.