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About the only way coolant won't flow to a certain part of the block is if you develop steam pockets under the deck. The old 400 chevys had special steam holes drilled between block and head to minimize this. Coolant only enters the block through one spot on each bank, but flows around the cylinders...
It sounds to me like you have a warped head/block or are developing a hot spot in the head or block between those two cylinders. I have read that the later 318 blocks had substantially thinner cylinder walls compared to the early blocks. Can I assume you have a .040" over bore to get to 392ci? ...
This has been an interesting thread. I have always been one to modify and "upgrade" things to see what can improve, or grenade. Reading through all of the posts I have a few questions for you. 1 do you have any pictures of the blown head gaskets? How a gasket fails tells a huge story. 2 wh...
If your name plates are in good enough shape to piece together on a board, and your willing to share them, I will gladly make a mold and pour a set for you and myself. I have been looking for an original to use for the mold.
I assume by your comments that your new distributor has the vacuum advance. If so, did you set the timing with the vacuum hooked up or disconnected? I would disconnect the vacuum advance and plug it off permanently. There is no benefit to it in a marine/industrial application, and sometimes it can c...
- Wed Jun 26, 2019 7:51 pm
- Forum: For Sale or Wanted
- Topic: Stantions and railing mods
- Replies: 18
- Views: 7039
Does anybody else have thin rubber gaskets between their stantion bases and deck? Mine had very thin rubber gaskets with an adhesive on one side. I don't think I have seen this on other Marinettes.
Unfortunately you have the less common manifold that was only used in the last few years of Chrysler Marine production. I do not have any of those manifolds but I believe they are available new at just under $500 each.
The number one cause I see for this (if the carb is not a Quadrajet) is failing check valves in the fuel pumps. They will slowly syphon the fuel out of the carb and drain the pump dry.