Trouble with my Pee-hole

mikebees

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23 Dec 2004
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I have just bought an old Yamaha 2B 2-stroke outboard.
There is no cooling water coming out of the pee-hole. - I believe this is the correct technical term.
My first thought is to check the impeller which I think is somewhere near the prop although I may be wrong. I have removed the two bolts that, I presume, hold the gearbox unit to the leg but nothing comes apart - should I start thumping and levering? Am I doing the wrong thing to access the impeller? Maybe the engine is just all gunged up inside?
Can anybody please tell me what to do and also advise where I could get manual or at least exploded diagram.
Thanks in advance,
Mike
 

broadcaster

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I had the same trouble with our's a few years ago. I remember it not coming apart when I removed the bolts and that you had to remove something else, but too be honest I can't remember what else has to come off.

Anyway the reason for my post is just to say don't hit it with a hammer, I did that and it doesn't work.

Andy
 

mikewilkes

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Very personal problem from the sounds of it.

Seriously I had the same problems with my 9.9 4stroke. The only way to get at the b****y thing is to split the leg. Had various suggestions but none seemed to work. Even had a friend of mine at it with bits of wood and a mallet. He quit in the end and we took it to the local dealer.
Got it back this morning, lighter by €761 and it still did not pee. They took it away to redo it. Cant believe they did not run it when they had finished.

Anyway I posted I think with a request for info on manuals. I got the number of a guy in Plymouth and next time I visit UK then I can pick it up at home.

Trouble is I cant find the number. But if it helps his name is Mick and he is very helpfull.

You could try a search, it was probably in Jan / early Feb.

Best of luck.
 

Solitaire

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You may well be right in terms of the duff impeller, but it may be something a bit more simple! Was/is the outboard used in salt water? If so it may be that the tell tale hole has just become blocked with salt residue. An unbent paper clip may sort out the problem.
 

JonJon

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I levered mine apart because for some reason it was seized solid and I was aiming to get at the pump impeller. I seem to have wrecked the drive shaft tube and broken various bits all badly corroded. I have a feeling this will be a fairly common problem with these old 2Bs. The power head is freely revolving. I have not costed replacement bits but have a sinking feeling. Grateful any advice too.
 

starboard

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That's one reason the small Honda 2hp is so good......it's air cooled. The problem with these small outboards is neglect!!...every time you run it you should run in fresh water at the first oportunity then the problem should not arise. The impeller is in the gearbox housing and a right B......d to split, once fixing's removed try a few hard taps with a rubber mallet, this may break the seal. However as previously stated try some fine garden type wire down the "Pee Hole" to try and clear any restriction.......my guess though would be the impeller.

Good luck

Paul.
 

JonJon

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Fully agree on the air cooled bit I have an old air cooled 5 hp Yamaha dont have to worry about flushing out every 5 mins - lifes too short for this. - Just the hernia lifting it in and out of the dinghy.
 

starboard

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Yeah thats the only draw back but at 12.5 kg the little honda a great buy and should not be too back breaking.

Paul.
 

BlueChip

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If the engine is not overheating then the impellor will be ok and its just a blocked p hole
If its overheating then it will be the impellor or bocked cooling passages
 
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My Merc 5 has the same problem about once in 4 times. I have a bit of thickish wire on the other end of that curly plastic thong attached to the ignition button thingie. If nothing comes out of the pee-hole I poke it woth the wire and all is well. The instructions that came with the engine suggested that if I was careless enough to get it near salt water then it should be thououghly flushed out with fresh straight away. Hard to do that since my mooring is in salt water. A good flush once a season seems to be OK so far (5 years on this engine and 10 on the previous)

Geoff
 

boatmike

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The problem with this engine is almost certainly that it is clagged up with salt deposits. Before you bust something you need to disconnect the gearbox at the bottom end and the gearshaft that operates it. then the gearbox and drive unit should seperate from the engine exposing the impellor and waterways in the bottom end. When you have done this remove the top casing and you should see at least two side plates on the cylinder and crankcase that can be removed. Take these off and dig out the crud. Wash copiously through with fresh water and clear out any waterways you can see. If you are having trouble taking the gearbox end apart leave it alone until you have cleaned out the engine itself. In 90% of cases the impellor etc are OK and the problem is a blocked crankcase.
 

JonJon

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Think I'll go with Starboard get myself a small air cooled Honda. I cant understand making an outboard thats not suitable for extended seawater service, where do they think most of em get used? Have to say tho my Yamaha was pretty old but really - reminds me of the car business in the 60s and 70s where built in obsolescence was king.
 

silverseal

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Seems a bit of a shame that the trusty Seagull outboards were driven out of business by motors which frankly are not up to the job.. if they block up in salt water, then they are not fit for the purpose. My old Seagull is 25 years old and still wont die...
 

brianrunyard

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I don't know the particular engine, but has it got F-N-R, if so you need to disconnect the gear change.
On my engine there's a small plate half way down the leg, when removed it reveals a conector in the gear linkage, that needs disconnecting.
 

JonJon

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No the 2B has permanent forward, if you want to go back you swing the whole unit around.
 

mikebees

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Re: Trouble with my Pee-hole - still stuck!

Thanks folks for your great response!
You gave me enough courage to gently thump the two lower parts of the engine with a mallet and wooden drifts and wedges. They came apart a few millimetrs but they were not going to move any further. I then took off the front of the gearbox by undoing the two bolts and, as I suspected, the vertical drive shaft terminates in a bevel gear retained by a circlip. No problem now I thought. I removed the circlip but still could not separate the two parts by wihdrawing the shaft out of the bevel gear and up the leg. The bevel gear seems free to move up and down the shaft a couple of millimetres or so but the shaft wont come away completely.
I'm now stuck again!
Mike
 

JonJon

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Re: Trouble with my Pee-hole - still stuck!

Think you'll find that the tube which surrounds the drive shaft down the leg is corroded in solid top and bottom. I may be wrong but this is where I wrecked mine yo still have to drive one end of the tube out of its corroded socket. The manual of course just says separate the gear box from the leg ( ha 3 minutes after it left the factory - yes). Undoing the bevel gear circlip I dont think helps as this is a separate shaft. One tip there is a little rubber grommet at the top end which seals the water way into the cylinder water jacket. You coul d make sure this is free. Interestingly I dont think the corrosion which stops you separating is down to seawater inside the channels I think its just poor choice of materials for the surrounding saliferous environment. Good luck - Have a look at the Honda.

John
 

mikebees

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Re: Trouble with my Pee-hole - still stuck!

Thanks Jonjon, thats very useful. I'll give that a try tomorrow.
Re the Honda, I bought a new watercooled Honda 2hp about five years ago when they first came out and had nothing but trouble - impossible to start so I returned it to the dealer in disgust and changed it for a Yamaha Malta - terrific engine but very heavy. Left the UK and sold all my boating stuff but am back now re-equipping. You are right about the old air-cooled Honda, if you can find one buy it, after my experience I am anti - Honda and would never buy another but everybody speaks well of the old air-cooled 2hp.
Mike
 

starboard

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Re: Trouble with my Pee-hole - still stuck!

Many people have starting trouble with the Honda.....see they forget it is a 4 stroke and not a 2 stroke like most earlier small outboards. The trick is to pull the cord slowly until you feel comresion (TDC) then release the cord and give it a full pull, this way the engine gets a full cycle and should start no problems!!

Paul.
 
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