Smoking after gas in oil

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standup303 said:
Thanks. Just picked up new plugs. Hope the cam is ok it is a roller.
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if there was any oil pressure and your were not causing it to have pressure on the bearing surfaces (like doing 1/4 mile pulls) My bet is you could have lubed it with water for a short time (and many of an engine has) as water is denser than oil and so a coolant leak into the crankcase would circulate coolant first for a while till the oil and coolant got mixed up.
 
New plugs in. Less smoke but there is still some. Plugs were very fouled. Oil pressure is 40 at idle, started dipping down to 30 as the car warmed up. Car still running like crap, doesn’t want to stay running at idle unless I crank the idle screw up to 1200rpm. I also noticed black unburned fuel/oil that came out of my collector on one side, not a lot. I’m almost thinking I need to let it get up to temp in the garage, change oil and filter again then go run the hell out of it. I feel like I would have had SOME metal glitter in the oil when I changed it if any bearings were shot.

Carb is also out of the box from AED, I need to do some tuning but it was running fairly decent before the ignition issue, way better than this.

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standup303 said:
New plugs in. Less smoke but there is still some. Plugs were very fouled. Oil pressure is 40 at idle, started dipping down to 30 as the car warmed up. Car still running like crap, doesn’t want to stay running at idle unless I crank the idle screw up to 1200rpm. I also noticed black unburned fuel/oil that came out of my collector on one side, not a lot. I’m almost thinking I need to let it get up to temp in the garage, change oil and filter again then go run the hell out of it. I feel like I would have had SOME metal glitter in the oil when I changed it if any bearings were shot.

Carb is also out of the box from AED, I need to do some tuning but it was running fairly decent before the ignition issue, way better than this.

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What kinda 440 heads take SHORT plugs?
 
Went to change the oil before taking it out and had probably 2 quarts of gas in the oil. Glad I changed it. And that’s from just sitting a week and have started it twice since last oil change. I’ll check fuel pump this weekend….But I also have a small amount of fuel leaking out of my driver side collector…so thinking I either have weak spark on that side or too much fuel. Float does not seem to be leaking but I’ll have to triple check it this weekend as well.
 
standup303 said:
Man don’t show me that lol. I have probably 300 miles on this build.
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It's a fact. Diluted oil ruins bearings in short order. I worked at the local Chevy dealer from about meh......89 to about 92ish? For "whatever" reason, the GM 2.8 and 3.1 V6 engines were VERY susceptible to spun rod bearings, but it was always from intake gaskets leaking coolant into the pan. And they did it a LOT. I remember swapping out a bunch of short blocks under GM warranty. So it doesn't take much. I caint see it happening in 300 miles though.
 
Id do a compression test starting with the one that was leaking fuel out of the header.
I'm wondering about pressure in the fuel tank. Vent blocked?
I definitely wouldn't run it anymore until it's diagnosed.
 
standup303 said:
Hey all, fairly new 440 was running fine and had the ECU/pickup take a crap. While trouble shooting this I cranked the engine a lot. When I finally got the car started, I noticed a 1/2 quart puddle under the car and shut it off after about 15 seconds.

The puddle was a gas/oil mix. Changed my oil and had 15 quarts of oil/gas mix….yay. Assuming gas was filling the combustion chamber and then leaking into the crank case?

New oil and filter, cranked her, let her get up to temp in the garage. White smoke the whole time, running/idling like crap. What do you all recommend I start looking at? Oil was not foamy/white. Fouled plugs from cranking not burning the fuel?
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When you gas wash the cylinders finish, it's easy to glaze it over and now have poor ring seal. You pumped a lot of gas into that engine, I'm amazed how you ended up with that many quarts.. so I would say the best thing you could do it's a change of oil again AND FILTER n try some 20-50w in there.. and take it for a nice 55 mph cruise for about 20 minutes
 
MOPAROFFICIAL said:
When you gas wash the cylinders finish, it's easy to glaze it over and now have poor ring seal. You pumped a lot of gas into that engine, I'm amazed how you ended up with that many quarts.. so I would say the best thing you could do it's a change of oil again AND FILTER n try some 20-50w in there.. and take it for a nice 55 mph cruise for about 20 minutes
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Thanks, I’ll give 20-50 a shot. Are you thinking that will hopefully burn off excess?
 
I'd take a safer route and drain the oil dry, leave the oil plug out with an empty catch pan under it to make sure the fuel isn't still leaking into the crankcase and let any residual fuel evaporate.
Running it would be too much risk for me. Unless you have plenty of other engines or parts to build.
Where did the 1/2 quart under the car leak from? Turndowns?
 
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Deltatech said:
I'd take a safer route and drain the oil dry, leave the oil plug out with an empty catch pan under it to make sure the fuel isn't still leaking into the crankcase.
Running it would be too much risk for me. Unless you have plenty of other engines or parts to build.
Where did the 1/2 quart under the car leak from? Turndowns?
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Good call. The 1/2 quart leaked from driver side header to exhaust connection.
 
standup303 said:
Good call. The 1/2 quart leaked from driver side header to exhaust connection.
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Find the source of the fuel excess make sure it has clean oil and drive that thing.

Trying over and over to start a motor doesn’t = multiple quarts over full unless you pumped the living crap out the throttle for days.
May be fuel pump, or maybe needle and seat problems with the carb.

I would expect it smoke for some time since even the exhaust is soaked.
That thing needs to get some heat in it.
The more you push it, the sooner that will burn out of the pipes.

Doom and gloom are just going to freak you out.

Oil pressure looks ok when warmed up.
Run it.
 
standup303 said:
Good call. The 1/2 quart leaked from driver side header to exhaust connection.
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I don't think Mopar Official is wrong although I'm more on the side of polished vs Glazed. I'm almost positive of what the compression test will show.
You must have cranked it for a while.
 

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