water on plugs

[dennisthemortgageman]

This is my first time here, please help me along. I have a 1991 9.9 Evinrude and the spark plugs are getting water on them. First what do yo think it might be? Second if I took it to a shop how many hours of labor do you thing it would be. Third, where could I get a book that will show me all I need to do the job myself? Thanks for you time and patience. dennisthemortgageman@yahoo.com

 

[dennisthemortgageman]

Re: water on plugs

It's a 9.9 hp

 

[R.Johnson]

Re: water on plugs

You most likely have had an over- heat, resultng in leaking head gashet. Remove head, repace gasket, and therostat, 1 hour. Replace water pump, 1 hour. Test run to check, and adjust, 1/2 hour. 2-1/2, to 3 hrs. labor at shop rate. + needed parts.

 

[F_R]

Re: water on plugs

All that and if it has been overheated, the exhaust cover gaskets. They get just as hot or hotter than the head.

 

[kenmyfam]

Re: water on plugs

Should check the bores for scoring while you are in there.

 

[jtexas]

Re: water on plugs

was there any little silver flecks or anything like that on the spark plugs?

 

[dennisthemortgageman]

Re: water on plugs

You most likely have had an over- heat, resultng in leaking head gashet. Remove head, repace gasket, and therostat, 1 hour. Replace water pump, 1 hour. Test run to check, and adjust, 1/2 hour. 2-1/2, to 3 hrs. labor at shop rate. + needed parts.

Wow, I really got some help. This is great. No I did not see any flecks of silver in the water on the plugs. I'm not convinced that the problem was overheating though. Last year the motor ran fine and the water pump functioned correctly. This year I took it out and it barelly ran and now won't run. Would a cold weather freeze have pushed a gasket or something? What book do you suggest that I use to rebuild it? Thanks for all of the help.

 

[BoatBuoy]

Re: water on plugs

First I'd check the local library for outboard repair. Then maybe buy a Seloc, Clymer, or OMC Service Manual reprint. Before I did anything, I'd read a little on this site http://www.wisnersinc.com/Fishing Information/Fishinginfo_main.html . Scroll down toward the bottom of page. Lots of good info there on 9.9 motors.

 

[hoeser]

Re: water on plugs

Failed head gasket does not always equal overheating. I replaced one last year that was just rusted, very, very badly. You should be able to replace this yourself with some patience and a torque wrench for the cost of the gasket. I would test run it and check temperature at the head with a temp gun.

 

[Rich976usaf]

Re: water on plugs

i might get my hands on a compression tester from auto shop and test the cylinder compression and post the results.