It was a fun 3 days or so, but now there's oil in the coolant and I need to figure out what's gone wrong.
I'm in the middle of a compression check. So far:
1. 151psi
2. I'm on this cylinder now. This plug is the most difficult to access. I've got the plug out and it looks fine. I'm having difficulty tightening the compression tester adapter in the plug hole and will go get a set of adjustable head ratchet wrenches tomorrow morning before I finish.
3. not done
4. not done
5. 122
6. 124
7. 142
8. 144
I don't like what I see in 7 and 8, and I'm not that experienced with blown HGs, but I'm fairly confident that if I took out a piston, the numbers would have been considerably worse. That's not to say that I'm certain I won't find a pleasant surprise in one of the last 3 cylinders.
The AFR went strangely lean today. I believe this to be the result of the engine missing and dumping the fuel and O2 from at least one of the cylinders into the exhaust. The BS3 is probably trying to compensate by richening the mixture. The mixture at cruise pegged out the O2 sensor at an incredibly rich 9.1:1. I'm pretty sure the BS3 is dumping fuel through those 120# injectors trying to get it back to the target, but because of the miss, no O2 is being burned in the cylinder. So no matter how much fuel goes in, the O2 sensor still reads O2 in the exhaust and interprets that as a lean condition. The only other explanation I can think of is that a fuel injector clogged or something's wrong with the pump.
I'll buy a couple drain pans and take a closer look at the oil and coolant tomorrow. The oil on the dipstick show no signs of coolant. At this point with the crazy readings I've gotten for AFRs and boost pressure, I'm hoping it's JUST a head gasket. This is all very tiresome after getting the best parts for the car and the best people to work on it. I wouldn't expect this to happen. I'm not ready to point any fingers or raise any hell. Was it the tune? Was it the build? Who cares? I just want a running, driving car with no major issues. Too much to ask, I guess, despite the time and $ invested. I'm probably just going to take the car to a shop in Atlanta and let them tear it down to prevent any hassle. I'm tired of this ****...
More to follow,
Chris
I'm in the middle of a compression check. So far:
1. 151psi
2. I'm on this cylinder now. This plug is the most difficult to access. I've got the plug out and it looks fine. I'm having difficulty tightening the compression tester adapter in the plug hole and will go get a set of adjustable head ratchet wrenches tomorrow morning before I finish.
3. not done
4. not done
5. 122
6. 124
7. 142
8. 144
I don't like what I see in 7 and 8, and I'm not that experienced with blown HGs, but I'm fairly confident that if I took out a piston, the numbers would have been considerably worse. That's not to say that I'm certain I won't find a pleasant surprise in one of the last 3 cylinders.
The AFR went strangely lean today. I believe this to be the result of the engine missing and dumping the fuel and O2 from at least one of the cylinders into the exhaust. The BS3 is probably trying to compensate by richening the mixture. The mixture at cruise pegged out the O2 sensor at an incredibly rich 9.1:1. I'm pretty sure the BS3 is dumping fuel through those 120# injectors trying to get it back to the target, but because of the miss, no O2 is being burned in the cylinder. So no matter how much fuel goes in, the O2 sensor still reads O2 in the exhaust and interprets that as a lean condition. The only other explanation I can think of is that a fuel injector clogged or something's wrong with the pump.
I'll buy a couple drain pans and take a closer look at the oil and coolant tomorrow. The oil on the dipstick show no signs of coolant. At this point with the crazy readings I've gotten for AFRs and boost pressure, I'm hoping it's JUST a head gasket. This is all very tiresome after getting the best parts for the car and the best people to work on it. I wouldn't expect this to happen. I'm not ready to point any fingers or raise any hell. Was it the tune? Was it the build? Who cares? I just want a running, driving car with no major issues. Too much to ask, I guess, despite the time and $ invested. I'm probably just going to take the car to a shop in Atlanta and let them tear it down to prevent any hassle. I'm tired of this ****...
More to follow,
Chris