Hello,
Let me first say that I am just venturing into the world of boating and have no clue what I'm doing!!! LOL I have worked on cars inside and out as a tech for years but this is a first for working on a boat motor.
I recently picked up my first boat; a 1981 skeeter with a 175 hp Johnson. I took it out on the lake after getting it and everything was great, the motor ran perfect. On my second time out I unloaded the boat off the trailer and shortly after leaving the trailer an alarm started going off. So I started toward shore and I noticed the motor power was less than half. Before I could get it docked it started smoking from under the motor cover.
I shut it off and swam the boat back on the trailer. When I got home I called my uncle and he came over and put a set of muffs on the motor and we started it back up. No water was making it out the exhaust or out the pee hole (As cars don't have these, I didn't know to check it at the lake. My fault :facepalm The motor reved up fine but again there wasn't a load on it so I don't know if thats a good sign or not. We didn't let it run very long before shutting it off.
Then yesterday I removed the gearcase so I could get the water pump off and the pump was destroyed. No vanes at all left and there was pieces of the vanes actually melted to the housing. Also there were chuncks everywhere.
I plan on checking compression and if they check ok then replacing the water pump and thermostats. Then hope for the best.
My question to everyone; Is there anything else on these that I should also check/replace?
Also if everything checks ok how can I hook up a water temp and water pressure gauge on each cylinder?
Let me first say that I am just venturing into the world of boating and have no clue what I'm doing!!! LOL I have worked on cars inside and out as a tech for years but this is a first for working on a boat motor.
I recently picked up my first boat; a 1981 skeeter with a 175 hp Johnson. I took it out on the lake after getting it and everything was great, the motor ran perfect. On my second time out I unloaded the boat off the trailer and shortly after leaving the trailer an alarm started going off. So I started toward shore and I noticed the motor power was less than half. Before I could get it docked it started smoking from under the motor cover.
I shut it off and swam the boat back on the trailer. When I got home I called my uncle and he came over and put a set of muffs on the motor and we started it back up. No water was making it out the exhaust or out the pee hole (As cars don't have these, I didn't know to check it at the lake. My fault :facepalm The motor reved up fine but again there wasn't a load on it so I don't know if thats a good sign or not. We didn't let it run very long before shutting it off.
Then yesterday I removed the gearcase so I could get the water pump off and the pump was destroyed. No vanes at all left and there was pieces of the vanes actually melted to the housing. Also there were chuncks everywhere.
I plan on checking compression and if they check ok then replacing the water pump and thermostats. Then hope for the best.
My question to everyone; Is there anything else on these that I should also check/replace?
Also if everything checks ok how can I hook up a water temp and water pressure gauge on each cylinder?