New Hampshire CMP Barn 2011- 2012 HUP Overhaul

[Phil Waterman]

Well I should have torn the engine down as soon as I took it out of the HUP, because I have a major problem a cracked head, (truck’s not mine) today I disassembled the head and discovered that the seat of the #3 cylinder is cracked. Number 3 cylinder is also the lowest compression at 95 lbs highest was 112 lbs so this one falls at 15% of the highest which would be questionable. So now I need to go looking for a new or already rebuilt head. I could use the 216 I took out of the C60S when I up engine to the 261 but I’d really rather keep the HUP as Original as possible which means overhauling the original engine and replacing the head.

Note the deposits on the intake valve this was found on all intake valves so the valve stems and valve guides have really been allowing oil to be suck in, what is a bit strange is how little smoke the engine was making.

Pictures below show the valves and the valve ports for cylinder # 3.