After leaving my engine on a stand for over five years, I finally
dropped it back into the frame last weekend. The freshly-painted engine
looked very good sitting back at home in the freshly painted frame.
Unfortunately, the engine was seized! I took the head off, sprayed all the
pistons with PB Blaster, and let it soak for a few minutes. After gently
tapping each cylinder with a block of wood and a hammer, the engine turned
freely. At this point, it was apparent that the cylinder head could stand
to be cleaned up a bit. I decided to call it a day, and bring the head home
with me to rebuild.
I just started disassembling the cylinder head tonight. I'm working
with a 228 GMC head. All of the intake valves came right out using a valve
spring compressor tool. NONE of the exhaust valves would compress using the
same tool. Are the exhaust valves held in with something different than the
intake setup?
I left my shop manual in my garage where the truck is. The truck is an
hour away. Can anyone explain the proper way to disassemble the exhaust
valves?
While I have the head apart for cleaning, should I be considering
porting and polishing / gasket matching / milling the head?
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