Reply To: Evinrude 18HP 1960 low power

[salnaes]

Hello everyone
I am impressed with everyone who is contributing to my little problem with an Evinrude 18HP not running properly. Now I’m going to tell a little story. I have restored a 10ft plastic boat from 1965 built in Norway. These small boats are from the brand ‘With’ and were incredibly popular in the 60s and 70s here in Norway. As a little boy I had such a boat with 4HP Tomos. Little boys make up tricks when dad is at work. I disconnected a Carniti 22HP from my dad’s boat and hooked it to my 10ft boat. I am 71 years old now but still have my 10ft With. I have completely restored the boat and wanted to go fast again. So I bought an 18HP Evinrude Fastwin but it was really bad so I had to completely strip it down and overhaul everything. It was finished last year at this time and started fine. I ran it in a test tank and then put it away for the winter. In the spring of 2023, I mounted it on the boat and was going to drive it for the first time. What I didn’t know was that the petrol we can buy now contains ethanol. Ethanol eats rubber. The leakage from the fuel hoses, which were brand new, is probably due to ethanol. In addition, today’s petrol is lead-free. So environmental concerns have consequences for us who want to take care of the old. Now I probably have to change the fuel hoses and also the gaskets in the carburetor again. I have also seen that the petrol is leaking from the gasket on the petrol tank. I changed this gasket before I started driving with the newly overhauled outboard motor. I hope that the only thing left now is to replace everything made of rubber in the entire fuel system. So all hoses must be replaced with new ones, all rubber gaskets in the carburetor must be replaced again. The same applies to the fuel tank. Hopefully the outboard motor will be as good as new when these works are completed. Many thanks to everyone who has helped me here at aomci.org throughout the year. You guys are amazing.
Sal