alright so i have my rings in and it runs pretty well but it smokes from the road draft tube, dipstick and the filler. actually pretty good. i made sure to off set the ring gaps. so i'm hoping the rings need to settle and the blow by will go away. anyone got tips tricks or ideas?

Were the cylinders honed? Were they checked for out of round or taper? Are you sure you installed them in the correct order and direction?


Lawrenceville, GA

yes i honed the cylinders, i checked the taper, i installed them correctly. I triple checked.

Were they chrome or cast rings? I always recomnend cast for a simple re-ring job, it takes more than a ball hone to seat chrome ones.  If they are cast just run it a while, they should seat if it all was done right.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

Assuming you’ve got the correct crosshatch for the rings you’re using and the crankcase is not filled with synthetic oil, heat on the rings does the trick.  If you’re running a 160° thermostat, this can inhibit getting enough temperature into the rings to adequately seat them early.  My own preference for street engines is to use 190°/195° thermostats beginning with the first fire up.  Beyond all this, just try a half dozen part throttle accelerations in high gear from 30 to 70 mph and see if that doesn’t improve the blowby significantly.

Lorena, Texas (South of Waco)

they're cast rings.



i took it for a decent highway drive today and the blow by is much better. still a little but its better, maybe as i continue to drive it it may clear up completely.



however i was noticing that as i took my foot off the pedal at those speeds there was a huge cloud of blue smoke i can't tell if this is coming from the exhaust or the crankcase. but it has me worried.



also the problem i was having before i ringed it is still there. under a moderate load (climbing a decent hill) i get some consistent backfiring, i found the #2 cylinder held only 30 psi with a compression test. bleed down test confirmed it was leaking into the bottom end, long story short after inspecting and checking the cylinder for taper i put rings in it. i haven't yet been able to do a compression test but if the compression holds what else could it be? I've put a new carb, new plugs, cap, rotor, points, coil, ballast resistor, rings, i"ve had the heads looked at. I've played with my timing god knows how many times... I'm at a loss and about ready to dump this motor.

Did you take a good look at your cam when you had the bottom open?  A bad lobe can do what you describe.

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

Worn timing chain?


Lawrenceville, GA

About the back firing, could the timing be out because the 50 year old damper has slipped, as has been reported?

Paul

Hold on a minute.  You said above #2 had low compression and you honed the cylinder and put new rings in it.  Did you put new rings in #2 only, or in all 8 cylinders?

John - "The Hoosier Hurricane"