Home › Forum › Ask A Member › 1973 Evinrude Mate 2HP Issues › Re: 1973 Evinrude Mate 2HP Issues
OK, well the piston IS correctly oriented in the cylinder…But, I see a lot of rust on that cylinder wall. Did you hone the cylinder? If there are actual pits on the cylinder from the rust, this might explain the low compression.
It kinda looks like the previous owner tipped the engine upside down somewhat when he removed it from the boat, water trapped in the exhaust housing backed up into the cylinder and got trapped there causing the rust and pitting.
It is tough to prescribe what to do now….Are you sure you used the correct part number rings? You did not check the end gaps, so we don’t really know where we are at now…Rub you finger nails along those rust marks to see if there is pitting…Let us know…