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Had my 98 Accord LX 4cy 2.3liter F23A-1 Engine rebuilt. After I got back the rebuilt block and cylinder torqued together from the rebuild shop I did oil housing assembly and timing belt then took back to rebuild shop and had them set the oil pressure. The rebuild shop said that oil was running very rapidly out of the VTEC solenoid into the cylinder head and they were concerned the solenoid was bad. Entire VTEC solenoid replaced brand new 2 years ago so I’m assuming no on a damage VTEC solenoid as they typically don’t go out in general.
Since the engine was on an engine stand when they were pressurizing the oil system I’m assuming having my electrical connector on the VTEC solenoid will rectify the rapid loss of oil through the VTEC into the head. However, before I assume and trash a brand new engine I would like some feedback regarding oil pressure through the VTEC solenoid. I understand that VTEC directs oil to the intake rocker side by demand (acceleration) and some weeping into the cylinder during idle and normal driving might be normal, I just don’t know how much.
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Thanks for the video. I reviewed but still not sure how much oil flow during normal (non-VTEC) operations there should be out of the VTEC solenoid into the top of the cylinder head.
Oil is not flowing through the solenoid unless it’s active. It flows to the solenoid during engine operation but not through it. It really shouldn’t be an issue since the solenoid does NOT have anything to do with the pressure inside the cylinder head. What does have a big effect on oil psi inside the cylinder head is the small orifice in the center rear of the cylinder block. If that is not in place you will not have oil psi to the cylinder head. If the VTEC solenoid is leaking, check the gasket. That is a common failure point. As you pointed out, they don’t often go bad. What creates oil psi is the clearances between the moving parts of the engine, not the oil pump, or the VTEC solenoid.
Keep us posted.
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