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Originally Posted by performanceisland  Well it wasn't any of the usual suspects, i have very low compression on all four cylinders, with oil put into the cylinder compression goes up significantly, so have to do rings, anyone know if the rings can be replaced on this engine with the block still in ? |
I would not try it. The cylinders should at least be honed so there is a fresh surface for the new rings to seat properly. Also torquing rod bolts correctly is a important part of the process which is hard to do correctly with the block still in the car. I would suggest take the extra time to remove the block and put it on a engine stand and do it right the first time by going through the complete motor. You might need crank and/or rod bearings which are very hard to do with the block still in the car.
Good luck, John S