Honestly, Chuck, I'm looking forward to getting to the bottom of it all myself.  I'm now in the process of ordering bearings and prepping all the pieces for assembly.  I will keep y'all updated.


Charlie Burns Laton, Ca (South of Fresno)



BurnsRacing981@gmail.com

Were are all waiting to hear Charlie, what went wrong? Was it an assembly error or? 

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

It's time to put the Y-Block back together.  After determining what I did wrong, it's time to install new bearings, check all tolerances, and log all details.  This should be a great engine.


Charlie Burns Laton, Ca (South of Fresno)



BurnsRacing981@gmail.com

Hi, Ted.  I'm in the process of taking the cam to Oregon Cams to be put in their equipment to measure exactly what the problem may be with the lobes.  I will let you know what the findings may be.  After a lengthy discussion with them, I'm sure I am not able to accurately measure the grind pattern due to the early ramp cuts.


Charlie Burns Laton, Ca (South of Fresno)



BurnsRacing981@gmail.com

Charlie.  Can you give some more detail on which lobes went flat on the camshaft?  There are a multitude of reasons for a camshaft to go flat but sitting for a number of years is getting close to the top of the list.
 
While I don’t see lifter shank diameters being a problem with the HyLift Johnson lifters, it is a problem with other brands.  While they may fit in the bores, they are not in a position to turn freely if on the large side of spec.  It’s extremely important that the lifters have at least 0.001” clearance in the lifter bores as any tighter than this inhibits their ability to turn freely in the bores.
 
Here’s a list of items that contributor to camshaft and/or lifter failures.
https://www.eatonbalancing.com/2012/11/06/camshaft-and-lifter-failure-causes-2/

Lorena, Texas (South of Waco)

I wouldn't doubt it Paul.  If that's the case, it's all my fault for not running it in early and at least turning it over by hand periodically.  All the same kind of parts have performed very well for me throughout all these years.  It's nothing that Tim McMaster cannot fix and hopefully I will be able to get it to him soon so that I can run it in again.


Charlie Burns Laton, Ca (South of Fresno)



BurnsRacing981@gmail.com

Charlie:..I don't know, but maybe because the engine sat for several years assembled, might be the key to the Cam or lifter failure?..  


Paul

Got it, I'm running Trend Tool Steel Lifters and a Comp nitrated cam, I hope that it stays good.

Hi, Cliff.  The lifters are Johnson Hy-Lift.  I'm not able to find my notes on the spring seat pressure, I'll look for it.  The engine was actually built 7 years ago.


Charlie Burns Laton, Ca (South of Fresno)



BurnsRacing981@gmail.com

Sorry to hear that Charlie.