Jeep broken piston

After replacing he lifters and push rods in Jennifer’s Jeep, there was still a nasty clatter. The lifter tick was gone but the clatter meant something was bad wrong.

I dropped the oil pan and discovered pieces of aluminum in the sump. A quick inspection showed part of the number six piston was missing. A google image search turned up several pictures of broken pistons that look exactly like hers. So this is not a completely unheard of problem.

I pulled the head back off and pushed the piston out the top. It is broken right below the oil ring and the complete skirt is missing. However, the cylinder walls look fine. Hopefully the other pistons are OK and I can just put in one new pistons and some new rings and bearings and she will be good for several thousand more miles.

One Reply to “Jeep broken piston”

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