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1998 Subaru Legacy

Question: General engine

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jaydoll, 2.5L 4 Cylinder, Hartford, CT, April 20, 2009, 04:13

Rookie

Autotechpat,

THe noise goes away after a few minutes of warm up or driving. If it was a bearing would you expect to see lower pressure if I put a gage on oil pressue guage on it?

I am guessing that the pan can't be pulled in place, Am I correct? You know what happens when you pull the engine.

Thanks,

jon

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Answer #1

patrick mannion from Greg Solow's Engine Room, April 20, 2009, 19:24

Master

Jon,
What you had described did sound like piston slap or even wrist pin bushing noise. Rod bearing noise may not show up on an oil pressure gauge but it would be like changing the oil filter filling the engine with oil it is a rattle rattle rattle sound that you would get until the engine gets oil pressure.
The cross member gets in the way of just pulling the oil pan off. I think you take off the engine mounts and jack up the engine. Labor time to R/R oil pan is 1.8 hours.

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patrick mannion, April 20, 2009, 19:27

Master

I was curious to know if your car ever had a blown head gasket or was badly over heated? Just had a Subaru in a few weeks ago, another shop did head gaskets 9000 miles previously a bit of old gasket debris was floating around and made its way up to the cylinder head starving the camshaft for oil on one bank. That wasn't my reason to question you about over heating. Over heating can easily collapse a piston skirt.

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Question: General engine

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