87 force 85 outboard no pee hole

[patrickj]

lright guys i got another question, i just picked a boat up off craiglist that has a 1987 force 85 horse motor. I put some muffs on it and ran it for a few mines and i dont see whater coming out and where except right abouve the prop, i see no pee hole. The only thing i see is 2 holes on the rear of the motor and no water ever comes through them only exhaust smoke. so how do i know when the water is flowing if there is no pee hole and is water supposed to come out those 2 holes on the rear of the motor. If not where does it come out and how will i know if its running hot? Thanks alot.

 

[QMAZIGGY]

Re: 87 force 85 outboard no pee hole

That engine was not originally eqqipped with a tell tale pee hole. Check sticky at the top for instructions on how to do it. I did and I check it often while on the water. You should have water splatter out the two little holes on the back of the leg, if not, water isn't getting up high enough in the engine to cool it. Coulf be low water pressure/flow due to ear muffs, or could be bad impeller. If this is a new to you boat, I would start with impeller replacement, as it is a critical, but cheap part.

 

[tater76]

Re: 87 force 85 outboard no pee hole

QMAZ is right, a good rule of thumb when you purchase any used OB is to change the impeller first thing. Spend the $16-20 bucks on this site, they can have it to your door in a few days. Pretty cheap insurance against overheating I say. My 85hp pushes VERY solid streams out the two holes, not just a spray. I also have a telltale that pushes a solid stream as well.

 

[patrickj]

Re: 87 force 85 outboard no pee hole

well i pulled the plug out on top of the head and stuck a piece of brake line i had that had the right size threads and water comes out it very well... so why would i not get anythign out of the exhaust relief?

 

[bentle]

Re: 87 force 85 outboard no pee hole

Check the thermostat for proper functioning. Also it could be plugged at thermostat opening. Water passages could be plugged under exhaust plate. The two holes serve as an exhaust pressure relief so that when lower is in the water you are able to start your motor. You should get some water out of those holes though. Change impeller and inspect pump housing. Check that thermostat as well cause it may not be opening the way it should and it may be plugged with debris and not allowing proper water flow.

 

[patrickj]

Re: 87 force 85 outboard no pee hole

well ive been messing around with it all day... it has a new impeller the t stat is new, i put a tell tale on it, the motor doesnt run hot, i have plenty of exhaust coming out of the exhaust relief and if i hold a hose up to the exhaust relief water comes out the pee hole a little bit and water comes out of the water intakes and the water discharge right above the prop. but when the motor is in water nothing comes out the exhaust relief but some exhaust, i read another forum that says this isnt uncommon that it may just spray a little water at times but isnt necessary to have water flowing from these holes... i dont know what to do next... ive checked the passages for dobber nests and such. im at a loss

 

[labawg]

Re: 87 force 85 outboard no pee hole

Water may not come out of the exhaust relief holes unless the LU is submerged in water like at the lake or whatever. The muffs may not supply enough water for a good test.

 

[bentle]

Re: 87 force 85 outboard no pee hole

If your testing in a barrel then it may not push water out the exhaust relief at. However if you are on the lake and still no water then something is plugged up. Now I have a 89 125 force that streams water out like a fire hose while on the lake and a pretty good spay with muffs. I also have a 94 120 force that sprays really well on the lake and not so well with the muffs. I would suggest removing exhaust plate and inspect water passages. However though if your not overheating at all then leave it be for now. Exhaust is really all you need there and only for start up.

 

[iCam]

Re: 87 force 85 outboard no pee hole

Not sure if it is possible on the 85hp, but I took my thermostat out and shoved a hose in the location it was. I turned the water on high and back flushed a couple yellow jacket nests out on my 150hp. That is cheap, easy and quick thing to do.

 

[fucawi]

Re: 87 force 85 outboard no pee hole

If you have water out your cylinder head top via the brake pipe you put in then you can say your pump is working well. Blockages in the water passages of the exhaust plate is a possibility and removing this give you access to the internal passages in the motor . With the gearbox removed you can bow out the inlet pipe with compressed air and listen for where it comes out and then connect your hose direct to the pipe and run the motor ..with the lower leg cover plates off my exhaust releif hole shoots water 10 ft and lots of it

 

[patrickj]

Re: 87 force 85 outboard no pee hole

ok... i was testing it with the muffs with no water coming out the relief and i tried a barrel and it would spray a little water out of those relief holes more like a mist. So i took it to the river and backed it in the water and sure enough... perfect water flow... i live in the boone docks and out water pressure is nothing to brag about so im sure my muffs just couldnt supply enough water to it.

 

[jason32038]

Re: 87 force 85 outboard no pee hole

patrick mine has a new impeller and it starts spraying out of the relief holes a few seconds after I start the engine on muffs..and my impeller housing is severely pitted. I did however enlarge the relief holes from 2 little holes to 1 big hole..not sure if this has anything to do with it. I reccomend you replace the impeller and install telltale.

 

[patrickj]

Re: 87 force 85 outboard no pee hole

not being rude but if you would have read above i already installed a new impeller, and a tell tale. My housing had absolutely no pitting and i have since put it in water and it sprays out the relief holes perfectly