wow sorry to hear this what did you do on break in? anyway here is the link
http://www.camresearchcorp.com/

i dont see that you used a light valve spring or pulled the inner spring out of the existing springs, hmm, im not a chevy guy but i got some micrometers you can use and am willing to come over to help or support the effort

i dont see that you used a light valve spring or pulled the inner spring out of the existing springs, hmm, im not a chevy guy but i got some micrometers you can use and am willing to come over to help or support the effort

 Your right Ralph, inner springs were not pulled. It never crossed my mind, but now that you mention it, I recall it being discussed here on the boards. So do you pull them only for break in, or take a couple of easy laps around the lake too? If I send the cam out for the break in, I shound be able to leave the inner springs in right? Thanks for the offer, you are very generuos person and I appreciate your advise and respect your opinion.

Hi Ron,
New to SCJB.  This is by far one of the nicest boats and best start-to-finish threads here.  Did you determine that the cam had lost a lobe?  Did you pull the inner spring(s) out during break in?  Seems like I hear more and more about new cams going flat during break in or shortly thereafter...boats and cars alike.

Also your attention to detail is amazing.  What inspired you to upholster the trailer steps?

thx
p-jet

Thanks PJ, these Allen trailers originally came with upholsered steps. You either hate them or accept them, I dont think anyone loves them. Someday I wound like to have some custom cnc'd steps made up, but for now they are tuck and roll baby. As far as the cam goes I pulled the valve cover off the right side and found the rocker at the rear has a huge amount of play. Its an exhaust valve I think, which would explain all the blow by that was coming out of the breather.
I'm heading out to the garage now to pull the motor.

I run a FilterMag, big chrome magnet on the filter, you'd be shocked at the shit you can pull out of your oil, especialy on a new one.

I feel for you man, I had the same shit happen to me last spring.  Mine packed the filter off and went into bypass and trashed the bearings during break in.  I shut mine down after it shot the first duck.

Just pulled the intake. No metal shavings and the cam looks fine. Check out this push rod, there's a 1/4" of it ground away. Thats why there were shavings only in that corner of the motor. What would cause this? 

Sorry, should have been more specific. It was the rocker end and we put in brand new Crane Gold's.

Sorry, should have been more specific. It was the rocker end and we put in brand new Crane Gold's.

Could have been adjusted too tight .

-beerjet-

I tend to agree with Ralph. need to check and see if your getting oil in the oil galley in that lifter bore

Hey Ron where did you see the oil coming out   in the lifter bore

Hey Ron where did you see the oil coming out   in the lifter bore

I put the lifter back in before I ran the drill on it. Oil came right thru the lifter. With out the lifter in place it looked like good amount of oil flow.

Weird, my post didn't stick, Is there some scarring on the shaft of the pushrod at the guide plate?, could be a severe alignment issue...Also, there are two different length pushrods in a BBC (just an FYI), it seems like the lifter or the pushrod have a restriction, sure a lot of rust...could it be a bad rocker (rusty)?

That's a goofy failure.

GT

The push rods seem to run thru the guide plates in that last inch or so that is apparently hardened. They used the old push rods, which surprised me. Especially after spending $300.00 on rockers. In the pics the one that looks like it is scared, in reality looks like sharpie marks, and the one with the rust you cant even feel it, its more like it etch. I stiill dont understand why they used the old push rods with everything else being new. Does this mean I need a 1 new rocker / push rod (which I'll buy a set) and 1 lifter.

The only thing that would bother me is that ya have all that metal floating through the engine and bearings   Could just kill the life of your engine. What kind of warranty did ya get if any   Just my .o2 Ron

I'll go talk to the builder this week. I'm just trying to get as much info as possible before i see him. He's a good guy, I've done cabinet work at his house a couple of times and this was a trade deal.
The only difference between the cup in this rocker and the others is its shinier. It feels the same as the others when you put the rod tip in it, but i'd be afraid to use it. The lifter has some dings around the cup but didnt get the snap ring and doesn't seem to affect the cup surface.