Sounds like marbles
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From: Fort Rucker, AL
Originally Posted by WillyB
Sorry you are having trouble - and this is one lesson I will learn without having to repeat it for myself. I would have idled the engine when I first started it myself. I know it does not help, but you saved me from the same fate.
I am still worried about the rod side clearance issue. I read the chapter on rods and pistons in Christ's book and he never mentions it. Again, I would have assembled the engine and never given it a thought. To make sure I understand what has been said, you are talking about being able to slide the rod sideways on the wrist pin, between the bosses inside the piston?
And this has a clearance tolerance?
I am still worried about the rod side clearance issue. I read the chapter on rods and pistons in Christ's book and he never mentions it. Again, I would have assembled the engine and never given it a thought. To make sure I understand what has been said, you are talking about being able to slide the rod sideways on the wrist pin, between the bosses inside the piston?
And this has a clearance tolerance?
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From: Fort Rucker, AL
Originally Posted by Ratsmoker
Not only does the oil not get splashed Rusty but the cam needs RPM to get the lifters spinning. Idling is the worst thing you can do on a new cam besides running without oil.
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From: Fort Rucker, AL
Originally Posted by debestuss
I wish I knew then what I know now. This was the first engine I'd rebuilt. I didn't know where the oil plugs went so I missed one...the lifter gallery one. I ran it for a week with the oil light coming on at idle.
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From: Fort Rucker, AL
I went with 15W-40 oil this time. I also pushed the collar up on the oil pump drive shaft to take out the slack. No more noise. Thanks everybody for now. If it comes back then I'll just...just.... 
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my engine makes a similar noise only when it is warm. the only time i notice it is when the truck is in nutural. but if you push in the clutch the sound stops. if anyone has any ideas om what the problem could be please let me know.
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Joined: Jan 2005
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From: S.C. North Dakota
With the marbles question , I had a 71 F100 that sounded like a marble somewhere when I would rev the engine up . Later when I overhauled the
C-6 tranny I found a PIECE of aluminum in the torque converter housing
that looked like it could have been from the starter . Scared the heck out of
me when that piece would rattle in there .
C-6 tranny I found a PIECE of aluminum in the torque converter housing
that looked like it could have been from the starter . Scared the heck out of
me when that piece would rattle in there .
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