Reply to "Troubling sound at back/top of motor"

marlinjackThe Machinist #5723 AMARGOSA MACHINE 'Running on Empty- Middle of Nowhere'

...Just started after a drive!?...Sounds like a Push-Rod Chaffing against the 'Guide Plate'! Or 'It's' bore in the Head, most common when using 3/8" Push Rods. Also could be a Rocker Arm chaffing against the 'Oil Filler Hole' BAFFLE. Or, the Roller of a rocker is Dry*, Seized and is chaffing the Valve Stem. The rhythm Does Increase when the engine is revved. Can't Explain Why it started 'all of a sudden'.

* Yes, could be a bad Lifter Not Pumping Oil through the Hollow Push Rod, causing the Rocker Arm contact point to Rod, to run Dry, and also, the Needle Bearing Pins.

Run the Engine with the Valve Covers Off! And be prepared for the MESS! There are 'Clips' that Redirect the Oil 'Squirt', Back, so you may do this Inspection. It's the Only way to Know for Sure! Other than tearing ever thing down...searching for a Shiny/Polished, Spot, that's Not suppose to be there!.

Best of Luck in Your search!

8/28/229:21 AM

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