Is it time for new Rings ! 1986 JOHNSON 110 HP

[quebec#1]

Hi i have a 1986 johnson 110 hp that ive had no problems with for over 15 years, i did a compression test and found these reading, 110,,111,103,108, The motor runs fine however ive lost some top speed in the last two years maybe due to the fact that the boat is getting older (1980 GLASTRON GT150) Its dropped down about 3mph. Would it be a good idea to just change the rings if the pistons and wall are ok ?

 

[DJ]

Re: Is it time for new Rings ! 1986 JOHNSON 110 HP

Do this procedure first. It will breathe some life back into it.<br /><br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=36;t=000016

 

[rbsaltydog]

Re: Is it time for new Rings ! 1986 JOHNSON 110 HP

Do this procedure first. It will breathe some life back into it.<br /><br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=36;t=000016

try sea foam to decarbon the rings

 

[ezeke]

Re: Is it time for new Rings ! 1986 JOHNSON 110 HP

This one: http://forums.iboats.com/showthread.php?t=158076

As suggested, repeat the process until the engine runs clean for best results.

 

[Dhadley]

Re: Is it time for new Rings ! 1986 JOHNSON 110 HP

Your loss of speed, and probably rpm, is probably in part due to ethonal fuel, if they have it in Canada. Do the decarb first. Let us know what happens.

 

[kenmyfam]

Re: Is it time for new Rings ! 1986 JOHNSON 110 HP

Without a doubt a decarb first before you start spending any serious cash !!!!