TwinTurbo.NET: Nissan 300ZX forum - Brass plugs in block- Should they be removed?
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Subject Brass plugs in block- Should they be removed?
     
Posted by ZXoltan on November 30, 2013 at 10:27 AM
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Message A couple months back one of our members posted on how to remove the steel plugs from the front and rear of the block to clean out the oil passages. I noticed some brass-colored plugs on the side of the block and I'm wondering if they should be removed during a rebuild (circled in red) ? What is behind them?

There are also two behind the oil tree:

Also, should the center part behind the oil tree that is threaded in (circled in yellow) be removed during a rebuild or better just to leave alone?

Thanks in advance!

     
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