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Possible cracked Rocker Cover
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Old 31 Oct 2011, 05:52 PM   #1 (permalink)
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Possible cracked Rocker Cover


I am having a problem with my 1994 WRX STI Version one, in that once the engine is up to temp it begins to leak oil from the driver side rocker cover. I have had the gasket replaced twice each time a different manufacture of gasket has been used but this still has not stopped the leak.

The passagner side gasket has also been replaced with the same gasket and this sealed and stopped any leaks straight away.

The Rocker cover has since been removed and when looked at closely very fine hairline fractures can be seen both on the inside and the outside of the cover, is it possible that when the engine is up to temp these cracks open up and allow the oil to leak?

Is this a common fault on older imprezas?

Is there any harm in buying second hand rocker covers from eg breakers yard etc as I expect brand new one may be quite expensive.

Any help would be much sought after

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Old 01 Nov 2011, 09:58 AM   #2 (permalink)
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Re: Possible cracked Rocker Cover

heat expansion will cause any small cracks to open up hence the leak,you'll be fine with a 2nd hand cover provided there are no cracks in that.
Mapped by Enginetuner(Plymouth)..
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