Pappy Chris
Veteran Member
Hi -- I spent the last few days getting an exhaust education.
It all began with finding a bad exhaust elbow while RnR the heat exchanger for cleaning.<br style="font-family:Georgia;font-size:13px;text-align:left;" />Based on manufacturers suggestion it seems that a properly sized exhaust system*on a 120HP diesel engine should be 3.5"<br style="font-family:Georgia;font-size:13px;text-align:left;" />What size(s) are others finding in their systems with this size engine?<br style="font-family:Georgia;font-size:13px;text-align:left;" /><br style="font-family:Georgia;font-size:13px;text-align:left;" />It seems that a PO had reduced mine to 2 7/8" through the muffler (sized for<br style="font-family:Georgia;font-size:13px;text-align:left;" />80HP) and connected that to the 3.5" that exits the boat. I am in the process of*taking out the hodge-podge of adapters that has been installed to do this.<br style="font-family:Georgia;font-size:13px;text-align:left;" />Correct size muffler, new wet exhaust elbows and hose should top $400.<br style="font-family:Georgia;font-size:13px;text-align:left;" /><br style="font-family:Georgia;font-size:13px;text-align:left;" />Cheers<br style="font-family:Georgia;font-size:13px;text-align:left;" />Pappy Chris<br style="font-family:Georgia;font-size:13px;text-align:left;" />m/y Moonshine
It all began with finding a bad exhaust elbow while RnR the heat exchanger for cleaning.<br style="font-family:Georgia;font-size:13px;text-align:left;" />Based on manufacturers suggestion it seems that a properly sized exhaust system*on a 120HP diesel engine should be 3.5"<br style="font-family:Georgia;font-size:13px;text-align:left;" />What size(s) are others finding in their systems with this size engine?<br style="font-family:Georgia;font-size:13px;text-align:left;" /><br style="font-family:Georgia;font-size:13px;text-align:left;" />It seems that a PO had reduced mine to 2 7/8" through the muffler (sized for<br style="font-family:Georgia;font-size:13px;text-align:left;" />80HP) and connected that to the 3.5" that exits the boat. I am in the process of*taking out the hodge-podge of adapters that has been installed to do this.<br style="font-family:Georgia;font-size:13px;text-align:left;" />Correct size muffler, new wet exhaust elbows and hose should top $400.<br style="font-family:Georgia;font-size:13px;text-align:left;" /><br style="font-family:Georgia;font-size:13px;text-align:left;" />Cheers<br style="font-family:Georgia;font-size:13px;text-align:left;" />Pappy Chris<br style="font-family:Georgia;font-size:13px;text-align:left;" />m/y Moonshine