Posted by Andy R on May 24, 2017 at 21:18:12 from (166.181.82.164):
I was in need of a 706 gas engine and found one earlier in the week. Engine (263) will be coming out of a very original 1963 706. Looks like it had been taken care of. Cylinder head has been off at sometime as the head had been cleaned and not repainted. This engine starts well, idles well (possible miss), sounds pretty decent under load in high 4th on the road - especially when speeding up. When in road gear and it reaches rated rpm it sort of sounds like it the engine starts to "float" and possibly miss. It looses its strong exhaust sound. The engine never smokes and blow-by is normal in my mind. I sort of think it has an exhaust valve going out as this is very common with these engines. Generally when the valves start to get burnt up it means the engine is burning some oil. Probably needs the valve lash adjusted as well. My question is if I can't get it to sound right with a tuneup and end up pulling the head and checking/grinding the valves can I just do the bearings and then do the rings to stop oil consumption using the existing sleeves and pistons????? Tractor will not see a plow or disk. Maybe an auger or chore tractor. Years ago Farmall H's and M's were just re-rung all of the time. Can I get by with a ring job once if I find the pistons are not all scored up??? I know ideally that sleeves/pistons are best, but the tractor is just going to putz around. Don't beat me up. Just want to know if I can re-ring successfully. Thanks.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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