1985 9.8 Mercury 110 Partial Rebuild Questions

[lonestar65]

Hi all!

Last September I picked up a vintage 1965 Loanstar Commander that came with a 9.8 110. Apparently the outboard had sat for about 5 years and was in unknown condition. I was able to get it started and do a single full throttle run for about 30 seconds. When I stopped I I was getting exhaust out the tell tail... Yup gasket failure. I finally got around to pulling it apart and now that I have it half way disassembled I'm wondering if I should replace the rings. How difficult it disassembling the power head? is there any other common failure parts I should replace? I should have checked the compression before I started but the pull start and the short power run felt good so it never crossed my mind. If new rings are in order is there a good tutorial out there?

Thank you
Justin

 

[racerone]

No point discussing this until the motor is apart and all part must be inspected.----The damage indicates it MUST come apart.----Likely the plastic washer at the top of the water tube is melted.-----The impeller is not the best design and a new one should have been installed before your test run !!

 

[lonestar65]

Sorry I should have mentioned that. I installed a new water pump, complete assembly, prior to starting it. I have it disassembled to to point in the pictures above. the plastic washer at the top of the water tube is fine.

 

[racerone]

My cristal ball must have had a low battery.------Good luck with the project.