change water pump and no water go to the piston?

[sylvain36]

i change water pump in my johnson 85hp 1969 and i put the lower unit on the water and start the engine but no water exit on the ruber hose beetwen the cylinder anybody help me please ?

 

[sylvain36]

Re: change water pump and no water go to the piston?

and were is the t/stats maybe is the problem someone cant help me?

 

[Bass Runner]

Re: change water pump and no water go to the piston?

for the t/stat look at the top of the head there should be a cover with a gasket under it with a round place on it, don't understand what rubber hose you are talking about, as far as i know the water goes from the pump via the water tube directly into the water jackets of the motor. there should be water coming out the exhaust after it goes through the motor, is your motor running hot?

 

[sylvain36]

Re: change water pump and no water go to the piston?

after 30 sec is very hot and no water exix the exhaus what i have to verify?

 

[sylvain36]

Re: change water pump and no water go to the piston?

and how cant i verify if de t/stat is runnung good maiby the wire are not in the good place??

 

[OBJ]

Re: change water pump and no water go to the piston?

I do believe on the early V4 power heads, the t-stat housing is located just below the exhaust cover on the back of the engine. Sylvain, are you sure you got the water tube lined up with the water pump housing hole?

 

[sylvain36]

Re: change water pump and no water go to the piston?

bass runner cant you help me please?

 

[sylvain36]

Re: change water pump and no water go to the piston?

yes OBJ there are in the good place

 

[sylvain36]

Re: change water pump and no water go to the piston?

when i run the engine if the transmission is in neutral position the water pump are they run??

 

[rickdb1boat]

Re: change water pump and no water go to the piston?

Remove the T-stat and see if it still overheats. If so, drop the lower unit again and check out the water tube and make sure the impeller key is installed.... If it's does not heat up, get a new stat... Water pump runs anytime the engine is running, no matter what gear you are in, even neutral. Do NOT run the engine for long until you find out what the problem is. It will die a quick death. Just run it long enough to see if it's overheating...

 

[sylvain36]

Re: change water pump and no water go to the piston?

rickdb1boat how can i know for the wire of the t/stat??

 

[Walker]

Re: change water pump and no water go to the piston?

There are 2 short rubber hoses at the rear of the powerhead down by the pan. Pull them off and fire the motor back up. If no water flows then your water pump is not pumping water up to the engine. Drop the lower unit again and make sure the key is installed in the impellor and make sure you get the water tube inserted into the impellor housing when you put the lower unit back on.

 

[sylvain36]

Re: change water pump and no water go to the piston?

ok walker no water exit in the hose a check what you say but for the t/stats i dont find him and dont know if wire ok cant you help me for that thank

 

[Solittle]

Re: change water pump and no water go to the piston?

sylvain - T/stats do not have wires. Are you using a shop manual? If not suggest you get one.

 

[bubbakat]

Re: change water pump and no water go to the piston?

They should be in a housing something like this<br />

 

[OBJ]

Re: change water pump and no water go to the piston?

Bubba....that is beaaaaaaaaaaaaaaautiful!!!! <br /><br />Where'd ya' git that?

 

[ledgefinder]

Re: change water pump and no water go to the piston?

That picture is AWESOME. That's the 1969-72 thermostat housing dead on. What's that...SolidWorks?

 

[sylvain36]

Re: change water pump and no water go to the piston?

ok and how can i verify if the t/stat is runing good????

 

[bubbakat]

Re: change water pump and no water go to the piston?

Take one of the hoses away from the t-stat housing and while the motor is running water should circulate thru it.<br /><br /><br /> (OBJ)<br />Where'd ya' git that?<br />you can obtain these and other useful info on older motors by searching the brochures on this site<br /> http://mitglied.lycos.de/old_omc/

 

[slyfloyd]

Re: change water pump and no water go to the piston?

ok thank all of you i think im stupid i put the feet in a bac of water the hol are in the water but the pump is 5 inch hiyer the water so i think is not a good ideal