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Connecting rod bearing replacement and piston Rings (w/out removing block) 700 1989

posted by  JimChamberlain on  Sun Apr 20 03:58 CST 2003
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For a 740 gl (with B230)Has anyone out there ever replaced their connecting rod bearings and piston rings WITHOUT removing the block from the vehicle? It appears as if you could drop the oil pan, pick-up frpm oil pump, remove the head, undo the Connceting rod caps and knock the pistons and Connceting rods out with a piece of wood, up through the top of the motor for replacement/rebuild.

But is there enough room to work? Could I torque the Connecting rods back on from all cylinders underneath the vehicle?

This seems a little tricky. Any help would be greatly appreciated.

Thanks,

Jim







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    Connecting rod bearing replacement and piston Rings (w/out removing block) 700 1989

    posted by  someone claiming to be Rludwick on  Sun Apr 20 08:08 CST 2003 [RELATED]

    I thoroughly agree with the others.
    It's easy to yank the engine.
    Trying to muscle parts around in a confined environment and attempting to get proper torque values using extensionsis an excersize in mathamatics and aggrivation that I would sooner pass on.








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    Connecting rod bearing replacement and piston Rings (w/out removing block) 700 1989

    posted by  someone claiming to be Rhys on  Sun Apr 20 05:10 CST 2003 [RELATED]

    Mike's right - just yank the engine. My other reason for advising that is that the B230 has a very limited taper allowance on a re-ring, something under .003 inch. So ringing it will probably not be an option unless the ridge is nearly non-existent. New oversize pistons are the usual cure. I bore every B230 I rebuild.








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    Connecting rod bearing replacement and piston Rings (w/out removing block) 700 1989

    posted by  weezy on  Sun Apr 20 04:43 CST 2003
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    Jim, I've done exactly that before on my chevy... and regretted every minute of it. With that much work (removing head, oilpan, etc...) it is just as much work to remove the entire engine. Engine stands aren't that expensive... and I can rent cherry pickers for something like $25-50 a day. ANd then you can do all the work standing or sitting... not lying flat on you back in your garage or driveway.

    my 2c.

    Mike






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