Home › Forum › Ask A Member › 9r72 low compression bottom cyl › Re: 9r72 low compression bottom cyl
Yeah, I would take some fine emery to those cylinder walls and give it the 50cent hone job….
Would it be easier to pull the intake bypass cover? I realize the darn carb is mounted to it, but this might be a little easier than wrestling with the exhaust cover….I am assuming this is a fresh water engine…
I would center the pistons, then try to make the cylinders as vertical as possible, then fill the cylinders with engine tuner/sea foam/whatever, and let it soak for a few days.. But, do this only if you plan to get the engine running within a few days of the soaking….This stuff is not a lubricant.
I hear what you are saying, probably not worth the time and effort of rebuilding….I’m betting it will be just fine after this treatment and the compression will come up again on the bottom cylinder….
The only other possible issue is if there is some sort of internal water leak that caused the seizure to begin with….I am not that familiar with the 9.5s, but seem to remember they were prone to internal exhaust cover water leaks when used in salt water….