Cutlass connecting rod

5

Asked by Aug 09, 2010 at 11:15 PM about the 1984 Oldsmobile Cutlass Supreme

Question type: Maintenance & Repair

Hello, im a new cutlass owner and new to this site. i have a 1984 cutlass with a 3.8 liter V6. My number two rod is shot and im wondering if i can pull it out the bottom of the motor. any one ever done this before or know if its possible?

4 Answers

405

I have never seen any V6 or V8 engines where you could pull the piston out from the bottom. Even if you could the tool to compress the rings and install the piston will only work from the top with the head off. It needs a flat surface to rest on. Besides, if it broke a rod then there is a chance that it bent a valve or may have damaged the head or even the cylinder wall. You should look everything over before going to far.

5

well the rod bearing was spun when i got it and i wobbled out the rod so its still in one piece. i was just thinking i could pull the piston down till i can get to the wrist pin, but leave the piston in the cylinder.

405

Well I won't say it's impossible but on most GM cars the wrist pin is pressed into the piston. If this is the case then you will not be able to get it out while in the car. If the pin is held in with retaining rings then maybe, but I would bet that the piston won't come down far enough. Good luck.

5

well thanks for the help, i guess i just take the top end apart.

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