1975 9.9 Seahorse Peehole Not Peeing

[trashcanslam]

Thanks to the input of folks on this forum I was able to tuneup my 1975 9.9 seahorse and she’s been running great. I take it out every weekend so I notice when subtle things change. Today I got back and while flushing the motor in a barrel I noticed the water coming out of the telltale was barely a dribble. It completely stopped while I was watching it. I shut off and restarted the motor and it dribbled again, and after a while, stopped peeing water. Wondering if anyone knows if this is a blockage or a sign to replace the impeller?? I don’t know when it was last changed, but then again I haven’t noticed the motor running hot. The immediate 1 inch of the peehole doesn’t have debris.

As always, I really appreciate the help.

 

[GA_Boater]

If you don't know when the impeller was last changed, replace it so you know.

 

[racerone]

Was there a tell tale installed on a 75 model ?----Or are you talking about exhaust relief holes ?----Yes , install a new impeller if you do not know how old it is.----Is the motor actually warming up?----Thermostats on those often fail in the open position.

 

[trashcanslam]

Was there a tell tale installed on a 75 model ?----Or are you talking about exhaust relief holes ?----Yes , install a new impeller if you do not know how old it is.----Is the motor actually warming up?----Thermostats on those often fail in the open position.

Theres a telltale. I don’t know how to post pictures here but it looks like any other outboard I’ve seen “pee.” I’ll change the impeller out tomorrow and check in with an update.

 

[flyingscott]

There is no tell tale on a 75 9.9 motor. The water will come out of the exhaust relief and takes about 10-20 seconds to start coming out. If it has one somebody added it or you have a replacement powerhead. Or your motor is not a 75 model.

 

[racerone]

Perhaps it is a newer block installed or someone installed a tell tale ( pee hose ) on a 1975 model.

 

[trashcanslam]

It may be a replaced powerhead or someone added it. I’ve had the motor less than a year but I did see the plate stating it as a 1975. There is a good deal of water being expelled through the exhaust relief. Is this something I should even be concerned about considering I’m 100% sure it’s a 75?

 

[racerone]

Perhaps the thermostat is stuck open.-----Does the motor run warm , yes or no?----Post some pictures of the motor and the powerhead.

 

[thatone123]

The small plastic pee hole is too small on those outboards. I pry it out of the lower cowling and run a clear fuel plastic hose out of the hole that the plastic gizmo too small tube ran thru. Better more efficient cooling and does not clog as easy. These also have a pain the the @@@ rubber grommet on the top of the water tube under the engine that will sometimes get crushed and mangled with age and has to be changed. Pain as the engine has to come out to repair/change. If run in salt and not flushed, the water passages in the head could be salted up. Head has to come off and salt scraped out. One time I had one of these that honest to God had half of one of those round salt boxes of salt in there. Like a cup of salt. Many times you wonder how these 9.9/15's keep running, but they do.

 

[flyingscott]

You should not take the pee hole out it is supposed to be restricted. It is normal for that motor to dump a bunch of water out of the exhaust relief. Replacing the pee hole.with a hose DOES NOT improve cooling in any way.

 

[trashcanslam]

I will be changing the impeller today. I’m attaching a picture of the peeport while I figure out how to downsize the other pictures of the motor for upload.

 

[racerone]

?-----A 1975 motor was not painted white !----Any pictures of the powerhead / cylinder head / coils / recoil starter ?

 

[trashcanslam]

?-----A 1975 motor was not painted white !----Any pictures of the powerhead / cylinder head / coils / recoil starter ?

 

[trashcanslam]

[No message]

 

[racerone]

Obviously you are not familiar with identification !!-----The CS in the MODEL # identifies this motor.------And not the 75 in the serial #.-------It is a 1980 model !----And I am 100% sure of that based on the MODEL #

 

[racerone]

And a 75 model did not have CD electronic ignition or that red starter lock out spring !!

 

[trashcanslam]

Obviously you are not familiar with identification !!-----The CS in the MODEL # identifies this motor.------And not the 75 in the serial #.-------It is a 1980 model !----And I am 100% sure of that based on the MODEL #

Great, thanks.

 

[trashcanslam]

As I’m getting ready to change the impeller, I noticed milky oil-like liquid dripping from behind the prop and down the lower unit. Anyone know if this needs a gasket replacement?

 

[oldboat1]

Work a 5 or 6 inch piece of weed whacker line into the tell tale, and see if that opens it up — but change out the impeller as planned. Stick with basics: Check spark with an adjustable tester, not the inline type. Check compression. Scoop up some of the fluid down at the thru-hull exhaust and see if it smells like gas (likely). Lower unit oil smells like sulphur. But change out the l.u. oil as part of regular maintenance (like the impeller). If the oil in there is milky, you need to pressure test (or better — vacuum and pressure test) to check for and locate leaks.

That black stuff around the coils looks like a prior fix of some kind. The coils can be tested with a multimeter. I would replace the plugs with Champions, gapped at .030. Chances are the motor needs a tune up.

 

[trashcanslam]

UPDATE: I replaced the water pump and impeller today. I also used my compressor to blow some pressurized air through the peephole. It runs and pisses GREAT now. If I had to guess I’d say it was the impeller. I also took the opportunity to change my gearcase oil. I am attaching a picture of what the impeller looked like. Again, thank you to everyone for all your help!