Has anyone ever rebuilt a 300sd diesel engine,what did you find when tearing it down,were the pistons still in good condition,and what shape was the cylinder liners in.Are the cylinder liners prone to wear.
82 300SD engine rebuild
Dec 29, 2005
2 Replies
No need to replace the piston. You do need to replace the rings and have a new cylinder liners pressed in. The cylinder liner is a high wear item which over time and age will become 'ovalish' shape.
About 10 yrs ago, we rebuilt our 300D engine. Had the cylinders honed by a machine shop and put new rings on the pistons that were one size larger. Car was awesome after re-installation, lot more power/torque. Drove it for another 6yrs before selling.
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