FormulaONE
New member
Hello everyone. So the topic of my last post was a coolant leak that I discovered on top of the exhaust manifold. I ordered the appropriate gasket from SBmarine and went to the boat yesterday to install the gasket. Before I started the install my ocd kicked in and I decided to pull the bottom zincs on the Aftercoolers to let them drain the pink stuff I winterized with as we are experiencing very cold temps here in Philly. While they were draining I saw small chunks of black rubber coming out of both coolers. I put my pinky into the zinc hole and felt a lot of debris. So with a combination of the debris that I felt and the boat approaching 1000 hours I decided to remove both Aftercoolers and order the rebuild/service kit, for $180.00 for both engines.. no brainer right?
I brought the coolers back to my garage and was utterly surprised of the amount of impeller blades were in there!!. I spoke to the previous owner and he confirmed that the first owner experienced failures in both impellers and that he ( the previous owner ) tried to remove as much as he could. I’ve only had the boat since October so I ran it only a few times and she runs great and I know the previous owner personally and he has never had issues with over heating or anything.
It amazes me how robust these coolers are to have that much debris and not see a negative impact on performance. That debris has been in there since at least 2003!.
Anyone with a moderate amount of mechanical aptitude can do this and save a lot of money. On the same note, if it is intimidating to some than definitely leave it to a technician to do as these are critical engine components and if done incorrectly can destroy your engine.
Here are some pictures from disassembly yesterday.
Sent from my iPhone using Tapatalk
I brought the coolers back to my garage and was utterly surprised of the amount of impeller blades were in there!!. I spoke to the previous owner and he confirmed that the first owner experienced failures in both impellers and that he ( the previous owner ) tried to remove as much as he could. I’ve only had the boat since October so I ran it only a few times and she runs great and I know the previous owner personally and he has never had issues with over heating or anything.
It amazes me how robust these coolers are to have that much debris and not see a negative impact on performance. That debris has been in there since at least 2003!.
Anyone with a moderate amount of mechanical aptitude can do this and save a lot of money. On the same note, if it is intimidating to some than definitely leave it to a technician to do as these are critical engine components and if done incorrectly can destroy your engine.
Here are some pictures from disassembly yesterday.
Sent from my iPhone using Tapatalk