2004 Suzuki DF140 (same as Johnson) water pump issues

[Wrexxer]

Hey guys,

I really need your help! I?ll try and make this short?

2004 Suzuki DF140 (same as Johnson)

Last year due to a move in the middle of the summer I only used my boat twice in June 2013 everything was fine and my water pump was working?When came time to prepare it for winter in September 2013, I did like I always did I get all of oil for the the oil changes and I start the motor to empty out the fuel lines. This is where I notice that my ?pee? hole was not spitting water?so I decided to store the boat guessing it was the impeller having issues.

Yesterday, I take the boat and set it up in the garage drain to the oil in the lower unit and start to take it apart to change the impeller (water pump) when I got there I noticed some signs of wear but nothing major so I change the impeller, plate and gasket like I?ve done many times already. Put everything back in place and sure enough?no ?pee? from the hole still?

So I take the lower unit back off and I start fishing some ?weed eater? line and blowing compressed air in every ?Orifice? I can find...and still no pee?

I?ve undone the top thermostat bolts and everything seems dry at that end so seems like the water is not getting there?If I put the compressor in the part that slides into the water pump I can feel air coming from the valve whole in by the dip stick (when cap is undone of course) and the rubber line to the pee whole is clear as well?

Also, when I had the lower unit off I put the ear muffs on and I can see the water coming out of the water pump casing so it?s flowing at that point?

Anyone have any ideas on what to check next?at this point I?m willing to try anything, if I would know where the prostate is I would check it?

Thanks in advance.

 

[99yam40]

Re: 2004 Suzuki DF140 (same as Johnson) water pump issues

If I put the compressor in the part that slides into the water pump I can feel air coming from the valve whole in by the dip stick (when cap is undone of course) and the rubber line to the pee whole is clear as well…

can you do a better job of explaining what I highlighted

 

[Wrexxer]

Re: 2004 Suzuki DF140 (same as Johnson) water pump issues

yeah I guess this is not the best choice of words...there's a pressure valve on that side of the motor and if I undo the 2 x 10mm bolts I can get air to travel from that are to the line that goes in the water pump housing.

 

[99yam40]

Re: 2004 Suzuki DF140 (same as Johnson) water pump issues

The pressure relief valve will dump excess water pressure at higher RPMs.
If it sticks open at low RPMs the block will have a hard time filling up

 

[Wrexxer]

Re: 2004 Suzuki DF140 (same as Johnson) water pump issues

Thanks 99yam40, do you know if this vavle only works on water pressure?? by looking at it, it would seem that once pressure has built it would just open...

 

[99yam40]

Re: 2004 Suzuki DF140 (same as Johnson) water pump issues

all of the ones I have seen on Yamaha's were spring loaded, but I have not worked with suzuki motors so look at parts break down for your motor

 

[Wrexxer]

Re: 2004 Suzuki DF140 (same as Johnson) water pump issues

Hey Guys,

So last night I put the hose into the flush port and sure enough the water was flowing through the pee hole…put the ear muffs on…no PEE!

So I decided to take of the LU and put the hose directly into the water port and pee whole pee’d again!! I figured it was the impeller at this point so I mounted the LU with a couple of bolts and all of a sudden it’s peeing but I did notice that the ear muffs have to be on perfectly as well…

So either putting the hose in the hole un-clogged something…or that it’s the ear muffs that are sensitive but either way it’s pumping water!!!!

Thanks for all of your help and comments.

PS: While I was looking at this I figured I might as well change the thermostat on the engine…anyone know if it’s a 61c or 70c that comes in the engines by default?? Or recommendations?