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Bryan Thompson · 03-21-2021, 05:31 PM

I ran the engine with the timing gear cover removed for a few minutes. There was no oil from the valve chamber coming onto the cam gear.
When I bought the truck five years ago the old guy said the engine had pressurized mains. I never removed the pan because the engine ran fine. I don't know how the mains were pressurized. There is nothing visible from the outside of the engine. Maybe something internal with the pressure modification failed.
I replaced the engine today and will tear into this engine soon.

03-21-2021, 05:31 PM	#13
Bryan Thompson Junior Member Join Date: Oct 2014 Location: Westminster, CA Posts: 14	Re: Is this normal wear? Aluminum cam gear I ran the engine with the timing gear cover removed for a few minutes. There was no oil from the valve chamber coming onto the cam gear. When I bought the truck five years ago the old guy said the engine had pressurized mains. I never removed the pan because the engine ran fine. I don't know how the mains were pressurized. There is nothing visible from the outside of the engine. Maybe something internal with the pressure modification failed. I replaced the engine today and will tear into this engine soon.