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Oil pressure question

Posted: Fri Nov 21, 2008 3:08 pm
by Wayne64
Please don't let this new guy wear you all out, I really need input. While the engine was "sort of running" I noticed the gauge showed only a few pounds of pressure. I haven't changed the oil or filter YET and was wondering if the 230 had inherit oiling problems. I guess I should hook up a mechanical gauge before I go any further, where is a good connection point? Any and all info appreciated.

Posted: Fri Nov 21, 2008 8:55 pm
by MSeriesRebuild
Using a known accurate mechanical gauge is good, attach the line at the fitting where the sending unit feeds on the left side of the block. A good engine will show around 30psi at idle, around 55psi at mid range with the engine at normal operating temp.