Force 35 not pumping water - water pump impeller seems ok

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Evinrude_NooB

Petty Officer 2nd Class
Joined
Jul 21, 2011
Messages
142
Today I finally got my Force 35 started.

First thing I looked for was water coming out of the exhausts to see if the water pump was working. There was no water. I took thermostat cover off to see if water was being pumped (the Force does not have a thermostat). I saw some traces of water there because it was a little bit wet.

Being concerned I took the lower unit off and checked the impeller. The impeller looked fine. I put everything back and restarted. Once again, no water from the exhaust and barely wet when I took off the thermostat cover.

Does anyone have any ideas? I took an air hose and blew everything out and there is no obstructions. Should I just replace the impeller anyway?

Thank you for reading my post.
 
W

wickware

Lieutenant
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Messages
1,286
Re: Force 35 not pumping water - water pump impeller seems ok

Are you deep enough in a barrel emulating being in the lake? I learned I could be 2? higher and not pump cooling water.
 

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Evinrude_NooB

Petty Officer 2nd Class
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Jul 21, 2011
Messages
142
Re: Force 35 not pumping water - water pump impeller seems ok

Hi wickware,

I have the water just above the cavitation plate. On my Force 50, it didn't have any issues spitting out water at that depth. Maybe I need to find a really deep barrel to test.
 
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Evinrude_NooB

Petty Officer 2nd Class
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Messages
142
Re: Force 35 not pumping water - water pump impeller seems ok

Well, I went out and filled a 30 gallon barrel and tried it again. And it pumps. I guess that says it, I learned something new today. Thank you, wickware.
 
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Bow Guy

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Apr 28, 2013
Messages
122
Re: Force 35 not pumping water - water pump impeller seems ok

i'm having the sme problem, over heats in the barrel and in tha water... impeller looks good....help
 
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wickware

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1,286
Re: Force 35 not pumping water - water pump impeller seems ok

Are you deep in a 55 gallon with the water as high as can be? 2? higher stored on jack stands my 1970 35 HP w/n flow until I added 2X4s etc under the barrel. It came to me that was a 1st not to flow and a 1st on the jackstands.
 

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  • A Tell Tale Stream Below A Cover Is Best.JPG
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jerryjerry05

jerryjerry05

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17,927
Re: Force 35 not pumping water - water pump impeller seems ok

BOW GUY,you shoud start your own thread.
Include the serial# and model,year HP.
You sure the pickup tube is going back in the pump housing?
The rubber gromet or seal still there?
Is it deep enough in the water?
Pump/impeller.Pics?
 
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Evinrude_NooB

Petty Officer 2nd Class
Joined
Jul 21, 2011
Messages
142
Re: Force 35 not pumping water - water pump impeller seems ok

Hi bow guy,

I had a similar issue and blew my 50 HP due to overheating. On mine the thermostat was seized closed.

Check the thermostat.

Start a new thread.

Bow Guy said:
i'm having the sme problem, over heats in the barrel and in tha water... impeller looks good....help
Click to expand...
 
B

Bow Guy

Petty Officer 2nd Class
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Apr 28, 2013
Messages
122
Re: Force 35 not pumping water - water pump impeller seems ok

Evinrude_NooB said:
Hi bow guy,

I had a similar issue and blew my 50 HP due to overheating. On mine the thermostat was seized closed.

Check the thermostat.

Start a new thread.
Click to expand...

this thread is about 35 force motors, I simply asked for help with same issue self. I was not HiJacking noobe's thread. I was just bumping the thread.... with a similar question.
 
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Bow Guy

Petty Officer 2nd Class
Joined
Apr 28, 2013
Messages
122
Re: Force 35 not pumping water - water pump impeller seems ok

jerryjerry05 said:
BOW GUY,you shoud start your own thread.
Include the serial# and model,year HP.
You sure the pickup tube is going back in the pump housing?
The rubber gromet or seal still there?
Is it deep enough in the water?
Pump/impeller.Pics?
Click to expand...


Start a new thread.
this thread is about 35 force motors, I simply asked for help with same issue self. I was not HiJacking noobe's thread. I was just bumping the thread.... with a similar question.
 
E

Evinrude_NooB

Petty Officer 2nd Class
Joined
Jul 21, 2011
Messages
142
Re: Force 35 not pumping water - water pump impeller seems ok

Did you check the stuff that was suggested?

If you do happen to have same Force 35 I have, then there is no thermostat.
 
B

Bow Guy

Petty Officer 2nd Class
Joined
Apr 28, 2013
Messages
122
Re: Force 35 not pumping water - water pump impeller seems ok

Yes I did..There is a place for a thermostat but there was not one there. I ordered one and it came today along with a new gasket, Impeller and water tube seal.
 
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