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oil pump question - what is this hole for?

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Old 02-08-2012, 01:20 AM
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Default oil pump question - what is this hole for?
here are two pics of the oil pump that came out of the car. dude's pointing at a hole that looks like it got filled.

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here's the new pump with a wide open hole

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Name: 5XG21.png Views: 98 Size: 377.4 KB

why was it plugged and do i plug the new one?
i don't get it...school me
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Old 02-08-2012, 01:26 AM
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I do believe this was used for a dip stick on the FWD cars using the Miata motor/block.
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Old 02-08-2012, 02:17 AM
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FWD dipstick

plug p/n 9930-71-000
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Old 02-08-2012, 08:06 AM
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thank you guys
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Old 02-08-2012, 09:43 PM
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Yep, we had to take care of that hole on the pump I ordered for my ride.
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Old 02-08-2012, 10:27 PM
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silicone?
epoxy?
or the plug that sav mentioned?
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Old 02-08-2012, 10:33 PM
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I say invest in a cheap tap set from HB and do it right.
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Old 02-09-2012, 05:52 PM
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i'm gonna get the plug from mazda
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