Home › Forum › Ask A Member › 57 Johnson RDE 19 running on 1 cyl › Re: 57 Johnson RDE 19 running on 1 cyl
October 31, 2015 at 4:11 pm
#26321
quote lakeboater:
no mercury switch on the 57, I think the last year was 56 or it was removed long before me.
So, I just ran compression and spark tests top has 115 psi, bottom has 118 psi. I had a good arc on both cylinders 1/4 inch plus using a screwdriver to a head bolt. I’m thinking I should pull the head cover next and give it a visual. I keep thinking about that bottom plug, how white it was. Could I have a water leak into the cylinder, yet still have good compression? Any other suggestions?
So, I just ran compression and spark tests top has 115 psi, bottom has 118 psi. I had a good arc on both cylinders 1/4 inch plus using a screwdriver to a head bolt. I’m thinking I should pull the head cover next and give it a visual. I keep thinking about that bottom plug, how white it was. Could I have a water leak into the cylinder, yet still have good compression? Any other suggestions?
Absolutely. A perforated exhaust cover baffle plate will squirt water into a cylinder (or cylinders) through the exhaust ports.