So I searched on here and the internet. I have the evo manual on pdf but nothing is really giving me answers. Car has sat for almost 2 years so Its hard to remember these little details. I need to know if there is some kind of bolt or mount, that goes here, where my finger is pointing.


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In this pic, its this threaded hole where my finger is pointing. Reason I ask is because the oil filter housing just covers completely that hole, pics..



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here is the back shot view of that threaded tab on the block.


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Could it possibly be for the alternator bolts?
I just don't understand why the oil pump cover has a hole provisioned for it and the gasket too, but the oil filter housing covers it.

 

Nothing gets thread in that hole for us. It must be a prevision for a different model.

 

Thanks.