91 240 sx leaking oil, oil coming out of exhaust

[tigerfan]

Hello. Now I have found the right place to post this question. Sorry, guys. Still learning my way around here.

OK, so I have a 91 240sx. She's a lot of fun she has been really good to me over the years. But lately the poor thing has just started to fall apart on me.

It all started a couple of months ago when she started misfiring and blowing some white smoke out of the exhaust. I took her to the mechanic and he diagnosed her with a bad fuel injector. I also had to replace all the spark plugs and wires (the wires had melted a little because the motor was shaking so violently, the wires were hitting the hood), distributor, rotor and all that other good stuff. Basically a nice tune up.

He fixed it and all was well for about a week. Then I started having the same problem again. I took it back and the mechanic said yet another fuel injector had gone bad. So I opted to replace them all. Once the mechanic replaced them all and started her up, she started blowing O rings. The mechanic fixed those and then it wouldn't start at all. The mechanic then puts in a new starter, which by the way, now grinds most of the time when I start the car. I took it back to him but of course he couldn't find anything wrong with the starter. He said he never heard it grind but it could be catching a flywheel. (I know how to start a ****ing car, ok, and the grinding noise is not in my head)

After all of that and $1,500 in mechanic bills the damn battery cable died and I had to replace that too. No charge on that one.

All of that said, the gremlin living inside of my car is still alive and kicking. This past couple of weeks she started leaking oil, a fairly good amount of it, though I don't know exactly where from. There's plenty of leaking out all underneath the motor, but most disturbing is the oil coming out of the exhaust pipe. Have I blown a head gasket too? She has not overheated at all.

Also recently she has been getting the shakes really bad, spuratically, but usually at lower speeds. I have to slow down and let go of the steering wheel to get the shakes to go away. I don't know whats up with that. Maybe a tire (although they're pretty new) or alignment?

I don't know....I've had so much trouble with her lately, but I don't want to give up on her. Should I put a new motor in her or keep having piece after piece fixed? WHAT the hell is wrong with it now?

[OldmanPurdy]

Well I guess the first thing to do is find out if the headgasket is toast because other than the temp gauge not reading high it has alot of symptoms of one. The proper way is to use a compression tester if you don't have one get one there cheap, but if you still don't want to you can try some other tests.

1) When the car is dead cold open the radiator cap and see if oil is mixed with the coolant, if there is it will be a milky brown color.

2) Check to see if there are air bubbles in the coolant overflow tank when the engine is running, this isn't always reliable but its quick to check