Hey guys
I'll finish work early today and go start the seafarer for the first time.
Apperantly its been sitting for around a year. It had a complete rebuilt and used only a couple of or so outing after rebuilt.
It should be allright.
The question is...
should I use some hot water to soften the impeller? Thats what i read somewhere before...?
I'll buy a new battery and some fresh fuel and give it a go...

Boris, we used to boil nylon propellers (for R.C. aircraft) to try and get then back to a flexible state. Impellers are rubber and I feel that if they harden, then no amount of hot water will change that state. If it pumps water then I would not bother. If it was rebuilt a year ago, then it should have received a new impeller. Try it, thats all you can do.

Impellor should be A OK & I definately would NOT be using hot water to soften it up
Reason I say this is simply heat expands things then cold contracts keep doing that & you'll crack even rubber used to make the impellor add to that that the rubber is bonded to a bush & you risk damaging that bond

so what you're saying is just put the fuel and battery and give it a go?

Yep Yep

Only way you can really check an impellor is to pull it out & do a visual inspection checking for cracks

Hey kkw,
mate are you into rc aircraft?

Yes.

Here's kk taking one out for a joy flight

Boris. One thing I would suggest , if the engine hasn't been started for 12 months or more, well a couple of things,
Get a can of carby clean, take the plugs out and the air cleaner/filter off, open and jam the throttles fully open, and with a good battery connected, crank it over while squirting the carby cleaner down the throats of the carbys.
Use about 1/2 a can of the stuff.
Before cranking it over spray heaps of WD40/RP7 etc down each bore from the plug holes, use heaps, and even spray some more while the engine is cranking over.
The engine will turn at a brisk pace with the plugs out, and the wd40 will loosen the piston rings and lubricate and clean any rust out of the bores.
If you do this you will increase the reliability of the engine.

well Frank, it's a bit too late, hehe

I came home, connect the battery, put some fresh fuel and I get it started after a few tries...

Now another problem...

The water pump, looks lile its working, plenty of water with good pressure, but the water... its one second hot then it cools down the other second then it gets hot again and again....

What could be the problem?
thanks

ok, update...
i started the enhine, this time i put it on gear, suddenly the water stopped for a split second, came back again, and again and again...
mmmm.... maybe the impeller isnt good....

Boris. That's the thermostat opening and closing. As long as the long term, the motor doesn't get too hot that you can't rest your elbow on it for a couple of seconds, at the side or top of the cowling, or too hot to touch with fingers on the side plate when the cowling is off.

mmmm... but it did give me a alarm sound or buzz... ???

mate i would be striping and rebuilding the water pump, just so u have peace of mind

here are some photos

Hmmmmmmmm

Alarm bell not good @ all

When you put it gear you would've droped the revs hence the


Now thermostat ???

Hmmmmmmmmm again

It should not have any relevance to the alarm going off what I would do is pull out the thermostat then run motor again & get back to the thread

and some more

how do i do that?

boris ...

i like the drivers seat

Boris. ring the guy who's number is on the cowling and ask him does he have any records as to what work he has done on the motor.
You may have to pay him a search fee but he may be able to tell you a few things about the engine.

yes Frank, i did that yesterday, and i'm scheduled to see him on saturday.
if anythings wrong with it I'll return the boat anyway.

Mate I used to own a pair of those Enenrudes in a bigger HP many years ago if it was a Yammy I'd be able to tell you right away where the cover to the thermostat was but it's been to long since I've looked @ a Evinrude.

Anyway shop be fairly simple to find & prob only 2 maybe 3 bolts holding the cover on look up high on the motor for it, being a V 4 good guess is @ rear of motor

Boris,

Are you using dolphin ears or is the lower leg in a drum of water?

If dolphin ears you have the water turned up? Hate to think you were starving it of water.
Try turning the tap on full pressure. This will help eliminate the thermostat if you have a worn/cracked/deformed impellor.

I do agree with Poly, changing the impellor would give you peace of mind but just checking it carefully also would help. You just do not know the history of the impellor, somebody could have started and ran the engine dry. I assume you know how to check an impellor, if not I am sure you will ask.

i was using the rabbit ears, not the dolphin ones... hehehe... joking...
well, there was plenty of water pressure in neutral... and when i put it on the gear the water starts to play around...

tonight i'll have a look at the thermostat...

mate can u put up some photos of the motor with the cowl off, the thing i am worried about is the boat looks very neglected, nothing that can't be put wright of course, its just that when one part is neglected u can bet the rest is as well, just how extensive was the rebuild, do u know????????????????

That is strange.

So the motor would have good water pressure for say 5 minutes of idling and a 2000rpm short rev. (Or is it only idling??)
Then you put it into gear and say rev it to 1500 and the water pressure pluses. (Or is it only idling??)

If only idling what happens it you increase the revs a little?
My guess is a water impellor more than the thermostat, but need more info.

Didn't you say you bought it from a mechanic?
Is he known to you, your mechanic?
Good place to start asking WHY is this happening tomorrow as you have said?

yeah i did say that i bought it from my mechanic, but he is my car mechanic not the outboard mechanic hehe...
and the guy who built the engine is my outboard mechanic. My car mechanic and i are using the same outboard mechanic. I know the both mechanics very well.
The engine is rebuilt in 2007. its a 1986 model.



Polly, inside of the outboard looks like its brand new, I'll take some pic tomorrow morning.

I'll go to the outboard mechanic tomorrow morning, i spoke to him today he said should be the impeller.
As you guys said i'd change the impeller anyway. I think i'll have some time tomorrow and change the impeller.

The boat is not that bad as seen in the pic. It just need some tidying. but it is really really dirty.

i think they all look the same as its had a cover over it for its whole life

I hate spelling.

It's impeller

Back to school for me <:-(

howed you go boris ????

by car

just came from the mechanic.

Impeller needs to be changed but he was su busy so i'll change it. other than that its all good.
It had a rebuilt early last year. So impeller is due to change anyway.

If i can change the impeller by then, i'll put it on the water on monday.

I'll put some more photos

here you go polly

[quote name='boris' date='Apr 12 2008, 01:19 PM' post='14331']
just came from the mechanic.

Impeller needs to be changed but he was su busy so i'll change it. other than that its all good.
It had a rebuilt early last year. So impeller is due to change anyway.

[/quote4]


I say BS. :2guns: What the boat has hardly been used since the rebuild and it needs to be changed.
My guess
1) Impeller was not changed when rebuilt 12 months ago
2) If definitely replace 12 months ago somebody ran the motor dry
3) Cheap impeller that has some of its fins/blades deformed because it has not been used

My Mercrusier is 10 years old, only gets used over Christmas and has never had an impeller changed.
Current outboard is 2 years old and impeller is fine.

hmmm very suss, all u can do for now is change the impeller and see how it gos,

of course it is possible to get a new part that is faulty from the start but as j.g. said i think i would be checking the thermostat as well
The water pump, looks lile its working, plenty of water with good pressure, but the water... its one second hot then it cools down the other second then it gets hot again and again....

the more i think about it i would say it is the thermostat or a blockage of some sort
just how hot dose the water get???????

Think so Freddy & whilst you're there take some notes on how to read all reply's written in these sorts of threads

Think I gave a very good possibility as to why the water pressure dropped when boris said he put the motor into gear in one of my early reply's.

Think the prob most people make in these sorts of threads is they base their reply's on the original Q asked & dont stop to look @ any other possibilities.

Very hard for an impellor to just shat itself unless of course you have a fuel blockage

Now where's Fed to comment on that one ???

your bloody hopeless you need to go back to school its Mercruiser not Mercrusier ..... need to put that i in front of the s

ok guys,

Because i coldnt be bothered to do it myself (working hard nowadays) i decided to take it to my mates mechanic (mine is busy for the next 2 weeks!!!!! what the...)
Anyway i thought it might be a good idea because i wanted the motor checked by another mechanic. The water pump and thermostad are changed and the gearbox oil. The mechanic said the motor is in top condition. He thinks the motor looks like its been hardly ever used. So yeah... its all good...

Now its time to start working on the boat...
to do list...
Cleaning
Put the second swiwel seat
Live bait tank. I want to use one of underfloor areas as a live bait tank.
Cutting board. Over the transom.
Under floor fuel tank,
rocket louncher
Carpeting

The fun starts....

Well, that's the pot calling the kettle, black!!!! Gingha the thesaurus telling someone they mispellt a word

Daniel, Daniel, Daniel, that was a typo. As KKW said you Twit Top. OH bugger I did not forget the s

So Boris we get half the info and now we will never know what caused the problem.
I don't know FED but if he could chime in now I'm sure all would be solved.

Jumpy, I agree with you why the water presure drops when placed in gear and I agree hard for a 12 month old impeller to shat itself.
My reply on the impeller was based on Boris' mechanic saying after he looked at it that it needs a new impeller.

Water getting hot - "but the water... its one second hot then it cools down the other second then it gets hot again and again..." Yes that is the thermostat but he did not state how hot is hot and he did not get an alarm/buzzer and I assumed the buzzer was working when he started the motor.

Any way I'll stop ASSUME-ing you know an ass out of you and me

Hey,



ok the impellar was faulty, so probably the prev owner dry started the motor. That was the cause of "water stops when you put it in gear"
But also thermostad was faulty causing water beeing too hot.


the alarm buzzer came of after leaving the motor on idle for 5 mins or so...

Ok, in his absence.....

You have a condensation problem in your fuel, just ask jumpy how to fix this. He has this problem all the time

Happy jumpy?

Jack

I think you made that up Freddy

The Mechanic didn't even get to look @ it till well after you made that initial comment that I quoted you on & if I recall Jumpus was the one who said it could be a faulty thermo.

No where in this thread does it say that & let me tell you how dumb some of these mechanics can be I'll bet my short & curly's that the reason thermo & impellor were changed by the mechanic was because boris brought it to their attention & yes if a mechanic has gone to the trouble of pulling out the old impellor then it would be silly not to replace it.

hows the boat coming boris

i'll post some photos soon....
i am not sure where to put LBT.
Underfloor or transom or under the passenger seat?
what do you think guys?

hey,
I put the boat on the water yesterday.
The motor and the boat are above my expectations. I am really happy with them.
but i should consider a hydrolic steering... the steering was a bit heavy.

Go to the gym

Still waiting for pics!!!

Jack

That would cost cheaper.. hehehe... good thinking though.. hehe

I'll post some pics after i do some work on it.
cheers.

Well grasshopper

When you get to be like Jumpus you can make the water come to you

Just wait for the rain to come

Hydraulic steering is very good & you'll never look @ cable steer again