Jon K
07-12-2004, 12:13 PM
I know this is the wrong forum but I know that the right people hang out in here. Here are the details.
I have been working with a friend on his 330i. It's got an ASA supercharger/intercooler from Rennsport and such. Car has been running fine. We were to put a 3.15 differential in instead of the stock 2.93 differential and so that is what he worked on today. I wasn't able to get up to NY to help, but he managed to get the differential in all alone. I told him to torque things to spec, drive the car a bit, and come home and check torque specs again. So, he takes the car out. Reports to me that the 3.15 jumped his RPM only about 250rpm and that it's a nice improvement without being silly. We talk for 10 minutes about it and such and everything is running good.
I go out for the evening and come back to check up on the car and he tells me this horrible story. Essentially he was highway driving the car when the oil light came on red (on E46 this indicated oil pressure, but he didn't know). He had an oil pressure light come on before once when a line on the supercharger popped off. So naturally he went and checked those hoses and everything looked ok and he started the car again. The car started awkwardly and he drove it home not feeling right. He says the car had no power at all and he had to keep the gas on somewhat for it to not stall. This sounds like a big vacuum leak to me, but then again I am not sure. Once in the garage he tried turning it over. It cranks but doesn't turn over. Feeling really nervous about this he contacts some people who deal with the supercharger. They told him to check the crankcase ventilation line as they have had issues with this before. He checked the line and noted that it was pinched and when he tugged lightly on the hose he noted that it came off from down on the engine from the supercharger. The assumption here is that the pinch in the hose cause pressure that may have messed some things up here. However, when he said the oil light came on red and the car ran really weird and shakily I instantly think oil pump failure. Question is. To hook the ventilation hose back up, we need to pull the supercharger. If we do that, what is the likelihood that this hose is what is causing the car to not start and run extremely odd? I hate to say it but it sounds like the oil pump failed to me and he drove this car a couple miles in the state it was in, I fear he completely damaged the engine. What's the likelihood this motor isn't completely wrecked? Input please guys. Thanks in advance.
Jon
I have been working with a friend on his 330i. It's got an ASA supercharger/intercooler from Rennsport and such. Car has been running fine. We were to put a 3.15 differential in instead of the stock 2.93 differential and so that is what he worked on today. I wasn't able to get up to NY to help, but he managed to get the differential in all alone. I told him to torque things to spec, drive the car a bit, and come home and check torque specs again. So, he takes the car out. Reports to me that the 3.15 jumped his RPM only about 250rpm and that it's a nice improvement without being silly. We talk for 10 minutes about it and such and everything is running good.
I go out for the evening and come back to check up on the car and he tells me this horrible story. Essentially he was highway driving the car when the oil light came on red (on E46 this indicated oil pressure, but he didn't know). He had an oil pressure light come on before once when a line on the supercharger popped off. So naturally he went and checked those hoses and everything looked ok and he started the car again. The car started awkwardly and he drove it home not feeling right. He says the car had no power at all and he had to keep the gas on somewhat for it to not stall. This sounds like a big vacuum leak to me, but then again I am not sure. Once in the garage he tried turning it over. It cranks but doesn't turn over. Feeling really nervous about this he contacts some people who deal with the supercharger. They told him to check the crankcase ventilation line as they have had issues with this before. He checked the line and noted that it was pinched and when he tugged lightly on the hose he noted that it came off from down on the engine from the supercharger. The assumption here is that the pinch in the hose cause pressure that may have messed some things up here. However, when he said the oil light came on red and the car ran really weird and shakily I instantly think oil pump failure. Question is. To hook the ventilation hose back up, we need to pull the supercharger. If we do that, what is the likelihood that this hose is what is causing the car to not start and run extremely odd? I hate to say it but it sounds like the oil pump failed to me and he drove this car a couple miles in the state it was in, I fear he completely damaged the engine. What's the likelihood this motor isn't completely wrecked? Input please guys. Thanks in advance.
Jon