Re: Detroit 4-53 Siezed, Help

Posted by NC Wayne on January 21, 2007 at 17:48:18 from (152.163.100.74):

In Reply to: Detroit 4-53 Siezed, Help posted by Uncle on January 20, 2007 at 18:46:33:

On a Detroit, depending on what position the engine stopped, in it is possible that all of the exhaust valves are closed at the same time. Even if all of them aren't closed your not gonna get anything into the ones that are through the exhaust. Your best bet would be to remove the airbox covers, and blower if needed, and go in that way. Depending on what part of the stroke each piston was on, doing it this way you'll see either see the inside of the liners, the sides of the pistons, some of the rings, etc through the intake ports. With this visual information you'll have a better idea of what's causing the siezure as well as having "direct" access to the parts involved. If you see the internal's are rusted up beyond repair then you'll know wether your wasting your time trying to get it to turn over or not. Just remember on the Detroits the oil control rings are tapered downwards and knife edged so any raised places from rust on the cylinder walls is likely to break or at least damage them. This will cause you alot of grief later on when the engine really starts to use and slobber oil out the airbox drains. Good luck and I hope this helps.

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