Re: question about rebuilding

sorry guys i dunno whats up with the anonymous thing, new tuesday stupidity or something... anyone who woudl like to reply to me directly can send to snipped-for-privacy@juno.com. thanks agian.

Tim

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if i were to buy a used engine from a junk yard, do i need to be concerned with the year vehicle it came out of or all all the 90's SL2 engines the same? will my VIN# have anything to do with anything? i see plenty of 95's, 98's etc....online. Im sure i can find a 94 if i have to but do i have to? thx

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Rebuilding the engine using a roll of aluminum foil and dull drill bits is probably easier than changing the oil in a '99 !?*&$%?@! SC2

thanks everyone for your responses! used engine def seems liek the best way to go. i certainly appreciate it. Can i use pretty much ANY year 1.9 DOHC?

Tim

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No. This is off the top of my head, but here's a motor year comparison to your 94 SL2.

91 DOHC had a cam cover that was different because there was no torque axis motor mount. The crank timing is also different and can't be used with your car unless you swap the car's PCM and ABS computer also. And then you're left with some weird gauge behavior and an idiot light or two that always stays on. 92 DOHC was same as 91, but with the updated valve cover recontoured where the new torque axis motor mount goes. 91 & 92 DOHC also had a different oil pressure sender than the rest because the gague cluster in the car had an actual oil pressure gauge and not just an idiot light. 93 & 94 should essentially be identical. 95 - 98 DOHC used a composite cam cover necessitating different plug wires than the older ones. Fuel rail mounting points, fuel rail, injectors, and throttle body vacuum line hookups are different than the older ones (so you need the corresponding parts off the older engine). The head also had only one temperature sensor, where the older ones had two. You'd lose functionality of the temp gauge in the gauge cluster if you went with one of these. 99 DOHC went with the roller valvetrain and a different head design. Exhaust manifold bolt pattern is different, and so is the fuel rail, injectors, intake manifold, throttle body, airbox, and piping. I've heard that you can use these motors in the older cars as long as you use your old sensors, with the newer motor, newer exhaust manifold, newer intake manifold, newer throttle body, newer fuel rail, newer fuel injectors, etc.

Don't take this word for word, but it should be pretty close. I currently have a 91, a 92, a 93, two 94s, a 96, and a 99 Saturn motor in my garage and have had a good look at them. Any inaccuracies or items missing in what I've listed above, please let me know.

Lane [ l a n e @ p a i r . c o m ]

The 95's are essentially identical to 94s. The only difference between my 95 and 94s is an electric EGR. It goes something like this: In 94, only NY/CA cars had electric EGR, and by 95 everything had electric EGR. The engine in my 95 SC2 is out of a 94. I had to obtain a EGR valve pad to make the mounting point level(since in 94 only some cars had EGR they didn't machine 2 heads - just put the little pad on to make the mounting point flat for elec EGR). The 95 also had 2 temp sensors so no problems there. Fuel rail and injectors were the same. Same cam cover other then the writing on it was a little different.

Or he could tap a fitting in the water jacket for the other sensor........

Try

he has all kinds of engines Paul