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engine problems w/ 94 chrysler LHS

Sent to Car Experts September 11, 2005 12:52 p.m.

I have a 94 Chrysler LHS w/ a 3.5 engine. The car had a serious knocking when i bought it . I was pretty sure what it was and that w/ a little work I could fix it. When I droped the oil pan the #1 piston rod at the crank shaft would slap back and forth w/ ease. I unbolted the rod end to find no bearing in either the rod or yhe rod end. Now I know I should pull the crank out and have it machined , but the rod , rodend , and the crank were still very smooth , but a little worn. so I put an oversized bearing in and did a plstigauge test and it seemed to be within specs so I put every thing bak together. and the knocking is gone but I still have a tick and that same piston is ( the #1 ) is not producing a power sroke . there is spark and Im pretty sure fuel , sense every other piston is firing. My question is what would cause this and would it be related to any thing I might have done? Im thinking it might be the camshaft and there is no air getting in the cylinder.

Customer (name blocked for privacy)

Status: Closed Value: $5

Answer
September 11, 2005 1:02 p.m. (10 minutes and 1 second later)

ACCEPTED

Do a compression test and make sure the cylinder can hold a volume of compression. This will tell you if the piston is damaged of if it is a top end engine problem.If the compression is low,squirt some oil in the spark plug hole(not a lot a few quirts)and see if it brings the compression up. If it does, then there is a problem with the piston rings collapsed/carbon. If there is no compression, you need to do a cylinder leak down test or look down the cylinder with a bore scope and see if you can see any damage.

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Reply to Gene
Sent September 11, 2005 1:10 p.m. (7 minutes and 8 seconds later)

would it have anything to do w/ the cam and what is the ticking

Customer (name blocked for privacy)

Answer
September 11, 2005 1:14 p.m. (4 minutes and 21 seconds later)

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Gene -- Auto Service Technician -- 99% Positive Feedback on 499 Car Accepts
ASE Master w/L1 Advanced Engine Performance, Ford Trans Tech/SMT, Toyota, Mitsubishi,Hyundai Tech.

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