quote:Originally posted by Rick:
No heater hoses. I live in Phoenix!
Bleed valves are on the back of each head only.
None in the front.
We can hear the right head percolating and water comes out the bleed on the driver side when we open it slightly and steam comes out the passenger side.
...'Bleeding off' the system pressure will INSTANTLY cause the Coolant to Boil into Steam.
Sounds to Me:
1. A percolating sound would be caused by Air Pockets trapped in the Head. Those 'Bleeds' you have 'may' be letting coolant out and Air IN, when you think the Air is being bleed out! If they are not at the highest point in the Head, and they are opened when the Engine is NOT Running.
2. The Stresses of being Stroked could have caused a Cracked Cylinder in the Block. Or a Cracked Head. Also a Blown Head gasket, though you have Not mentioned Oil in the Coolant, or Coolant in the Oil. Or a loss of Coolant. Could have made a Compression Check, only this would take some Guessing out of the Equation.
3. I can't see where the By-Pass would ONLY cause ONE Head to Over-Heat.
4. As Doug said, could be a Blockage.
5. 'I' would Triple Check that Head Gasket!!
a. Correct Gasket installed correctly
b. Do ALL the Holes Align
c. Check the Head for Warpage
d. Torqued EVENLY to 125 Ft/Lbs (Cast Iron Heads on a Cast Iron Block)
...That's all I have.