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Discharge from "pee hole"

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BigNiner19

Contributing Member
So I've done some research and hear that a lot of Honda owners complain about the "pee hole" clogging up and though nothing is wrong, it can be a little nauseating not to see the engine discharging water from the "pee hole". Has anyone safely taken a small drill bit and made this exit hole a little larger to keep it from plugging up? Or maybe tried a different fitting? Is it at all even possible?
 
i have never had a p hole stop up i could not unplug with running a small wire or whatever is handy in it with the boat in the water and running a fast idle...i would not make that hole bigger...i am not familiar with a honda but on some motors the p hole is before water cools the block and is just an indication of a water pump working and nothing else... older evinrudes for example even had a small reduction in that p hole hose size to maintain some back pressure...so i would leave it as designed and just unstop the p hole..just my opinion...
 
Many motors never had a dedicated " tell tale" or even a warning system folks and dealers maintained the waterpump and all was good.-----The tell tale is at the back and I rather enjoy the scenery and never look at the tell tale.------If you are really paranoid then look into an audible warning buzzer for overheat.
 
The answer to your first post is yes. There are several ways to approach this, depending on what motor that you have.

If you are going to drill the hole a little bigger, I would remove the fitting and then drill it...to keep any of the debris from being pushed up the hose.

Again, depending on the motor, we have removed the fitting and extended the hose through the hole. We have even put a larger size hose on some that were used in ashpits (and there is a lot of debris in ashpits). Your limitation is the size of the fitting on the engine. But, you probably would not have to go to the extreme of changing the fitting.

Mike
 
I have enlarged the pee hole fitting without any ill effect. I have learned, though, that keeping the the little hose fresh and having it properly routed from engine to case helps prevent most clogs.

The rubber tube gets hardened and takes a "set". Because it has bends in it, even if properly routed, any stiffness in it will cause debris to slow and catch.

As far as routing is concerned, people don't realize that there is one and only one way to "snake" it through the case and out to its fitting in the cover. If not done right, it will kink or, worse, be crushed flat closed. Make sure all that is in order before going to the trouble of changing the size of the holes.

I change the tube with the impeller to prevent clogging.
 
On my 50hp, I would have to regularly clear the hole at the engine fitting by using a piece of wire.

Last time the penny finally dropped. (well I am a bit slow :eek: )

I removed the fitting on the block ( its a little cramped and awkward to get a socket on without some dismantling but it can be done) ran the engine for a few 20 seconds or so without the fitting, replaced the fitting and it has been brilliant ever since.
My guess is that at some time the impeller must have destroyed itself (I brought the boat/engine second hand) and a piece or pieces remained in the block.
It may have been just a build up of mud into a hard ball or such, or even a small piece of debris (wood) that passed through the pump) that the flushing never was able to dissolve.
The gunk that was blocking the hole was simply being pushed out of the way by the wire and would stay out of the way for a while but then move on a rough day or when the motor was tilted.

It has been brilliant ever since and the "pee" is now noticeably stronger than it has ever been.
 
You don't give much info on size or year of your motor but if it's an older 50 there is a newer fitting that has a larger hole available from honda.
 
The 25 - 50 HP's 2004 and newer use the 19312-ZW4-H00 water tube joint. That is the nipple that screws into the block.

I can not tell you if it has a bigger opening than the older.

Mike
 
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I went ahead and changed out the fitting on my 225. I looked all over the place and found this fitting from an aquarium fish store that sells bulkhead fittings. It fits perfectly and hooks right up the hose. There is no custom modification necessary and it cost under $2. There is no way that my discharge will ever get clogged from anything now.

Thought I would post it for anyone else interested in the easy fix, that still looks OEM

http://www.jehmco.com/html/bulkhead_fittings.html#MiniBulkheadBarbs
 
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