Join Date: Jan 2002
Location: Sacramento,Ca USA
I was just out running the Chevelle and on the way back she started to run a bit rough. By the time I got home the engine was running really rough and knocking loudly from the passenger side.
The engine is a 396/325 with some mild performance modifications by a previous owner. These include cam, intake manifold, carb, a fuel pressure regulator, and headers.
I have not had the car long. Stuff I've done is an oil change about two weeks ago, a fill-up with premium unleaded yesterday, and I tightened the terminal nuts on the coil a small bit today. Other than than I have done alot of polishing.
All of the vitals (oil pressure, water temp, amps) were normal throughout the run and when I shut her down. There is no water in the oil or steam from the tail pipe. No smell of coolant. When it cools off I will see what the inside of the radiator looks like.
I'm wondering a couple of things. One is whether it would be wise to start the engine, in order to narrow down the source of the noise. The other is what should I check out first? Is there a most common offender in cases such as these?
Any help would be appreciated.
69 SS 396/325