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Old April 9th, 2025, 04:19 PM
Pfroman Pfroman is offline
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Location: Mundelien, IL
Truck: 1964 GMC C1000
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Default Re: Valve train oiling

Quote:
Originally Posted by James View Post
Remove the rocker arm shaft assemblies from both side of the engine. Disassemble the shaft but keep the assembly order. There is two way the shaft can be assembled, which is why you need to keep in place. The drill passageway in the shafts makes a difference. Cleaned out the inside of the shaft, the end mounts passageway, and the squirter holes in the arms (see attachment). It might be plugged up with sludge. The rear mount in the right head and the front mount on the left head supply oil to the rocker arms. Clean out the supply holes in the heads the best that you can. Lubricate everything with fresh engine oil and assemble it to the head. This would also be a great time to check valve clearances. Once everything is assembled, run the engine. It will take some time to fill up the shafts, but you should see oil flowing out of the rocker arms.
James (all) I got back around to this and have removed the valve train for cleaning. The sludge is not that bad, but my question would be- should I have expected to see a considerable amount of oil in the long tube? I had none in there at removal....I'll get a look at the oil port in the head tonight. Any suggestions on what to clean that out with?

Thanks,
Phil
'64 C1000 305E
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