Rings have to have oil on them to prevent them from wearing out; that's the whole purpose of the oilscraper rings, to scrape off most of what the rods are squirting up there, leaving just the right amount.
Raw gasoline or ether dilutes the film and the rings scrape it into the pan.
Do a compression test dry, then repeat with oiled cylinders. I have seen differences of anywhere from 30% to 50% ..
Your lawnmower might start at 60psi, even 30 with an auto-decompressor and a big flywheel,lol.... but not your V8.
Is this the easiest way to get oil in there? It's gotta go in to the topside of the rings.Since you can't aim this oil to go where it needs to be,so the rings can distribute it around the piston and from there to the cylinder walls, you just put way too much in there, to start with, and blow the excess back out with a few revolutions of the starter. Yeah it makes a mess, so you do what you gotta do to minimize it. You gotta blow it out, cuz if you don't, it will just short out the plugs and still not start, driving you crazy.
It may not be fun, but if low-compression pressure is the cause of the failure to run, then,the results will be instant.
Same goes for an engine that has sat for a long time; oil it up, and hit the key, and hope the guides have not yet nor will, seize.
The pistons do not suck the air in.
Atmosphere goes from a high pressure area, to a low pressure area. The throttles are closed while you are cranking to start. The piston assemblies have to create the low pressure area. With a long-period cam , and it's resultant late-closing intake, the piston tries to create the low-pressure area, but then pushes half of what may have just come into the cylinder by BDC, back out the still open intake valve, up into the plenum, and with no ring seal, what ever is left over, the oxygen molecules are too far apart to support combustion, or even find a gas molecule small enough to react with. You gotta have a decent ring seal on the intake stroke.
Or do what I do, if you dare.
Start with a fully charged battery to ensure a good cranking speed. Then sit on the radiator, and with a windex spritzer loaded with at least 5% 2-cycle oil in one hand, and the other holding the throttle wide open; have a helper start cranking. Tell him not to stop cranking, no matter what, until the engine is either running or 1 minute has gone by, or the battery is giving up, or you yell fire!
When he starts cranking, you start spritzing.
Keep your face away from the airhorn, cuz if it "Backfires" you don't want your prime bodyparts in the line of fire. And it will backfire. And your helper better not stop cranking, cuz the best way to put out that fire that is bound to occur with you still spritzing,and the intake full of atomized fuel, is to suck it on down into the engine. But if your hand is on fire; #1 you shouldda put a glove on, and #2 yell fire! This is a key word to your helper to stop cranking and hit you with the fire extinguisher. You did bring an extinguisher didn't you?
This is the easiest way,
but I don't recommend it; and
you didn't hear it from me,
got it?
I would say lol, but working with open gasoline is like riding a ticking time-bomb, and you don't know when the ticking will stop.
Have I done this? Of course or I wouldn't know about this method. More than once? Sure, or I wouldn't have reminded you to bring the extinguisher. Did I ever get burned? You better believe it, and I smelled burned nose hairs for several weeks. And my friends had a good laugh over my missing eyelashes, missing eyebrows, and frazzled hairline, which the burned stuff had to be cut out of the rest. That was a for sure lol.
Will I do it again? Probably yes, it is the fastest and easiest method. Besides practice makes perfect; I'm getting pretty good at finding the extinguisher with my eyes closed; I don't got no helper.
BTW; when it starts firing, close the secondaries. When it starts running, keep the primaries WOT until the rpm comes up, then stop cranking; and slowly begin to close the throttles, so as not to exceed about 3000rpm. When it's hitting on all 8, you can put it on the fast-idle cam, and maintain 1500 for a couple of minutes, then see if she's ready to idle yet.
Now, remind me, about who told you this easiest method. It for sure wasn't me. I have seen the results of underhood carfires; not mine, nor any I have worked on, but it couldda been. You just never know what gasoline can do until you see it.
