1994 30 hp johnson

mark pine

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Nov 15, 2009
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5
replaced impeller with complete kit still no water comming out water discharge hose need ideas thanks
 

kenmyfam

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Aug 10, 2006
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14,392
Re: 1994 30 hp johnson

Is the water tube in place ???
Is there any water coming out of exhaust ????

Welcome to iboats
 

mark pine

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Nov 15, 2009
Messages
5
Re: 1994 30 hp johnson

nothing in hose to block it took off hose blew it put back on blew threw hose sounds llike you can hear air going threw power head and therw inlet tube no water out exhaust thanks mark
 

tygart river

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Aug 2, 2009
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4
Re: 1994 30 hp johnson

If you are using a barrel to test the water pump make sure the water is over the pump.
 

mark pine

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Re: 1994 30 hp johnson

key is in place used water muff to feed water into pump could lower unit were water feeds into pump be clogged
 

kenmyfam

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Aug 10, 2006
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14,392
Re: 1994 30 hp johnson

key is in place used water muff to feed water into pump could lower unit were water feeds into pump be clogged

Maybe, you can tell that better than us because you can see it.
 

bktheking

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Jul 29, 2008
Messages
5,057
Re: 1994 30 hp johnson

Really easy way to check is to submerse the lower unit in water past the water intake with the water tube sticking out and put a drill on the drive shaft to spin it, that will tell you if the pump is working.
 

SparkieBoat

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Aug 17, 2009
Messages
3,643
Re: 1994 30 hp johnson

are you sure the water tube seated properly when you put the foot back on??
 

bktheking

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Jul 29, 2008
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5,057
Re: 1994 30 hp johnson

And if that doesn't work (tube is in the pump) , shove a garden hose into the water tube in the leg and turn it on, water should come out of the telltale, it's gotta be one or the other, blockage or the pump wasn't assembled properly.
 

seminol7

Seaman
Joined
Nov 16, 2009
Messages
69
Re: 1994 30 hp johnson

i may not should say this but once had 25 merc.same proplem had dirt dobbers nest in powerhead, had to take hose and fitting out and took garden hose with small tip to break up nest.bugs get in darndest places!
 

Mas

Lieutenant Commander
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Oct 3, 2006
Messages
1,656
Re: 1994 30 hp johnson

Is the powerhead getting hot? You might have cooling...just no tell-tale.

Mas
 

mark pine

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Nov 15, 2009
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5
Re: 1994 30 hp johnson

does motor have to get hot before the thermastate open to let water come out hose thanks
 

Mas

Lieutenant Commander
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Oct 3, 2006
Messages
1,656
Re: 1994 30 hp johnson

You should have water coming out of the tell-tale within seconds of starting up. Most of the water that is being pumped goes down the leg with the exhaust. If the tell-tale is plugged, all the water will go down the leg. But if the tell-tale is clear, you'll need to remove the LU and replace the pump impeller along with necessary gaskets.

Mas
 

Mas

Lieutenant Commander
Joined
Oct 3, 2006
Messages
1,656
Re: 1994 30 hp johnson

Whoops, sorry I forgot that you already replaced the impeller.

Remove the LU and ensure the water pick-up tube's grommet is not pinched...this is very common and would cause your problem.
 
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