smoke at high revs after sitting flooded
06-30-15, 09:24 AM
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smoke at high revs after sitting flooded
Wondering what you guys think.
I'm seeing lots of white smoke (doesn't smell of coolant too me) when I rev it hard. This never happened before. When at idle or low RPMs it doesn't smoke. Shouldn't matter much as I'm sure the same logic applies, but this is a 12A engine installer into a 2nd gen car.
Car sat for about a year due to it not wanting to start. Flooded the **** out of it many times trying to get it going. Eventually I figured out it was the main battery terminal cable. Corrosion was allowing enough to crank it but not enough spark to start it. Now it starts like it used to. When I finally got it going it smoked like hell at all RPMs for a while. I figured this was from all the crap in the engine from flooding. Low RPM Smoke cleared up after running it a bunch, but I can't get it to stop smoking at high revs.
I am wondering if this is happening because there is still crap from the flooding in the exhaust that only burns a high RPM. I would have thought with the heat these cars put off and a couple months of letting it sit it with starting it up ever week or two would have burned everything off or evaporated by now.
I let it idle for half an hour then goose it to see if it will smoke and it does an instant white snowmobile smelling cloud every time.
So what do you guy make of this? Too much crap in the exhaust that is not leaving or burning off, or other troubles?
I'm seeing lots of white smoke (doesn't smell of coolant too me) when I rev it hard. This never happened before. When at idle or low RPMs it doesn't smoke. Shouldn't matter much as I'm sure the same logic applies, but this is a 12A engine installer into a 2nd gen car.
Car sat for about a year due to it not wanting to start. Flooded the **** out of it many times trying to get it going. Eventually I figured out it was the main battery terminal cable. Corrosion was allowing enough to crank it but not enough spark to start it. Now it starts like it used to. When I finally got it going it smoked like hell at all RPMs for a while. I figured this was from all the crap in the engine from flooding. Low RPM Smoke cleared up after running it a bunch, but I can't get it to stop smoking at high revs.
I am wondering if this is happening because there is still crap from the flooding in the exhaust that only burns a high RPM. I would have thought with the heat these cars put off and a couple months of letting it sit it with starting it up ever week or two would have burned everything off or evaporated by now.
I let it idle for half an hour then goose it to see if it will smoke and it does an instant white snowmobile smelling cloud every time.
So what do you guy make of this? Too much crap in the exhaust that is not leaving or burning off, or other troubles?
06-30-15, 05:11 PM
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is it white? or is it light blue?
gasoline is a volatile liquid. it evaporates rapidly. the color of smoke is key. if it's absolutely white, it's coolant. you could confirm by pressurizing the system, allowing it to sit for a period of at least a few hours, observe the pressure drop, fire it up and see if you get a billow of white. if so, probably coolant seals. if it's light blue, look towards the oil injection nozzles maybe. could also be oil control rings, but usually the indicator is smoke during warm up, accompanied by high rpm smoke. you can also monitor fluid levels to what's dropping, but the color and sometimes smell should be indication enough
gasoline is a volatile liquid. it evaporates rapidly. the color of smoke is key. if it's absolutely white, it's coolant. you could confirm by pressurizing the system, allowing it to sit for a period of at least a few hours, observe the pressure drop, fire it up and see if you get a billow of white. if so, probably coolant seals. if it's light blue, look towards the oil injection nozzles maybe. could also be oil control rings, but usually the indicator is smoke during warm up, accompanied by high rpm smoke. you can also monitor fluid levels to what's dropping, but the color and sometimes smell should be indication enough
Last edited by welfare; 06-30-15 at 05:15 PM.
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