It did run, just not as good as I wanted. First there were a series of CEL (Check Engine Light) codes to deal with. This meant isolating the cause for the codes and taking appropriate steps; sometimes requiring sensor replacement.
So here's the motor running once I reached the No CELs stage. If you listen carefully you will hear valve noise off and on. This still existed after I pulled the covers off and reset the valve clearances a second time. It started becoming apparent that something else was amiss. Keep in mind this is a used motor that someone did a partial rebuild/service to.
As I continued to test the motor under running conditions it continued to sound worse. I then decided it was necessary to tear it down again and dig into the details.
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| Right head after cleaning/lapping |
- All exhaust valve seals were loose - these were OK when inspected years ago. They'll get all new seals.
- Most intake seals were dry-cracked - probably because the motor sat for several years before getting to this point. These seals will get replaced also.
- Valve seats needed cleaned up - especially the exhaust. All valves/seats will be lapped.
- Spark plugs were partially soaked - from blow-by of the exhaust seals. Two cylinders were worse than the others so those injectors will get tested. All were professionally cleaned before being installed.
So I'd have to say at this point that I have partial function. I'll post back when it's all back together and hopefully have reached full function.
