Smoking out of tail pipe at WOT
08-20-2017, 05:17 PM
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Smoking out of tail pipe at WOT
So I just did a fresh rebuild on an LS B18b1 non vtec and I was driving it around today. No smoke on start up or normal acceleration.
Didnt smoke until it reached operating temperature AND WOT. My friend tells me it's white but I don't really trust his opinion because it is easy to mistake oil smoke for coolant smoke and at idle I get no smoke. only a tiny bit when I really rev it out in neutral to 7-8k and even then it's difficult to get smoke. There is also no sign of oil in the overflow reservoir. The oil cap doesn't smell like there is coolant in the oil at all. All gaskets including the head gasket are replaced on the engine and brand new pistons and rings. It was also machined, sleeved and honed.Brand new valve train as well. Only thing not touched on the valve train was the valve seals. I don't know what else to do. What else should I check for? Pleaseee help me figure this out. Thanks in advance.
Didnt smoke until it reached operating temperature AND WOT. My friend tells me it's white but I don't really trust his opinion because it is easy to mistake oil smoke for coolant smoke and at idle I get no smoke. only a tiny bit when I really rev it out in neutral to 7-8k and even then it's difficult to get smoke. There is also no sign of oil in the overflow reservoir. The oil cap doesn't smell like there is coolant in the oil at all. All gaskets including the head gasket are replaced on the engine and brand new pistons and rings. It was also machined, sleeved and honed.Brand new valve train as well. Only thing not touched on the valve train was the valve seals. I don't know what else to do. What else should I check for? Pleaseee help me figure this out. Thanks in advance.
08-23-2017, 03:11 PM
#3
Re: Smoking out of tail pipe at WOT
So I just did a fresh rebuild on an LS B18b1 non vtec and I was driving it around today. No smoke on start up or normal acceleration.
Didnt smoke until it reached operating temperature AND WOT. My friend tells me it's white but I don't really trust his opinion because it is easy to mistake oil smoke for coolant smoke and at idle I get no smoke. only a tiny bit when I really rev it out in neutral to 7-8k and even then it's difficult to get smoke. There is also no sign of oil in the overflow reservoir. The oil cap doesn't smell like there is coolant in the oil at all. All gaskets including the head gasket are replaced on the engine and brand new pistons and rings. It was also machined, sleeved and honed.Brand new valve train as well. Only thing not touched on the valve train was the valve seals. I don't know what else to do. What else should I check for? Pleaseee help me figure this out. Thanks in advance.
Didnt smoke until it reached operating temperature AND WOT. My friend tells me it's white but I don't really trust his opinion because it is easy to mistake oil smoke for coolant smoke and at idle I get no smoke. only a tiny bit when I really rev it out in neutral to 7-8k and even then it's difficult to get smoke. There is also no sign of oil in the overflow reservoir. The oil cap doesn't smell like there is coolant in the oil at all. All gaskets including the head gasket are replaced on the engine and brand new pistons and rings. It was also machined, sleeved and honed.Brand new valve train as well. Only thing not touched on the valve train was the valve seals. I don't know what else to do. What else should I check for? Pleaseee help me figure this out. Thanks in advance.
It's quite likely the rings are not fully seated yet. Chromoly rings take a loooong time to seat and at WOT high rpm, that is when you get the most oil passing by the rings.
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