Won't turn over, watery oil, coolant leak!

[jpmack]

Engine:
Volvo Penta AQ 151 C
1987 - '89 ?

Outdrive:
Volvo Penta 290 Powertrim


I have recently acquired a 1988 Imperail V 184 with the hardware mentioned above. I am mechanicaly inclined and want to do what i can myself. All i knew when getting this boat was that the engine would not turn over, unfortenitly the person i had got the boat from has passed away (hence the reason for acquiring it) so I am unable to find out what was exactly wrong with it. My understanding is the last it was in water was in '07 and has been garaged since then. Right off the bat i noticed three problems, the engine wont turn over, watery/milky oil, and leaking antifreeze coolant. This leads me to beleive that it was improperly winterized.

Problem 1: Engine not turning over.

Currently the sympton is that the engine isn't turning over and only makes a 'clank' sound when i turn the ignition key. I have done the testing explained on this forum in the sticky: HOW TO: Troubleshooting your engines starting system with no success. I then took the starter completly off and ran it up to the local autoshop and had it tested. It tested fine. Reinstalled the starter, took a wire brush to all connections i could find from the battery to the starter to the engine. Checked both positive and neg battery cables with volts meter and all tested good. I am completely stumped on this. Any suggestions as to where i should go from here? I figure there is no reason to look at the other problems i have until i can at least get the engine to turn over. Could the engine be seezed? if so how do i test that? Below i have posted a picture of the starter and surrounding area. I did notice that there is another wire connection prong on the silonoid not being used (white arrow number 1 in picture). And therer is a stripped wire (white arrow number 2) just hanging there!

http://forums.iboats.com/attachment.php?attachmentid=63916&stc=1&d=1281741530


Problem #2: Watery/Milky Oil

http://forums.iboats.com/attachment.php?attachmentid=63917&stc=1&d=1281741530


Problem #3: Leaking Coolant

http://forums.iboats.com/attachment.php?attachmentid=63918&stc=1&d=1281741530


Any help would be great,

Thanks

 

[njrextreme]

Re: Won't turn over, watery oil, coolant leak!

From the picture, the oil dont look that bad. The leaks seem to be coming from the water pump. Needs a gasket. Can the motor be turned over manually? It could be a starter issue. Im sure more people will jump in. Good luck w/ her.
Nick

 

[jpmack]

Re: Won't turn over, watery oil, coolant leak!

the starter is fine, i had it tested at autozone. I was also unsuccessful to manually turn it over! The battery is also brand new!

 

[paultjohnson]

Re: Won't turn over, watery oil, coolant leak!

have you pulled the spark plugs out to make sure you dont have a cylinder or more full of water ? That would keep the engine from turning over as water cant be compressed and will stop the piston from coming up if its on its compression stroke. If there is no water in the cylinders spray oil or some other lube into spark plug holes to see if that helps loosten it up..

 

[Lincoln7]

Re: Won't turn over, watery oil, coolant leak!

I'm thinking the engine is hydrolocked. Pull all the spark plugs and turn it over using the starter. It should rotate no problem. Reinstall plugs and start it up if it rotates fine.

 

[ChrisCraftJohnny]

Re: Won't turn over, watery oil, coolant leak!

The engine sounds like it is locked up. Could be from corrosion/water where it should not be....

Or,

Engine could be hydrolocked. That's when water is trapped in the cylinders. Water CAN NOT be compressed, hence the term "Hydrolocked".

Remove the spark plugs and try to crank the engine again. If still no-go, place a large ratchet with the proper socket on the crank's bolt and try to turn the engine by hand.

If you get the engine moving, don't get too excited because it sounds like you may have old winterizing problems. Cracked block, cylinder head, etc.

But you never know till you try to run the engine.

Johnny

 

[Flukinicehole]

Re: Won't turn over, watery oil, coolant leak!

As already stated pull the plugs first then try turning over. If you still get nothing then try turning over with breaker bar and socket on crank pulley.

 

[jpmack]

Re: Won't turn over, watery oil, coolant leak!

Well i pulled the plugs and using the flashlight looked inside and all four where bone dry! Sprayed WD40 in the holes and tried turning it over with the ignition. Same old same old "clanking noise each time i turn the key".

"Crank pulley"? is that the pulley that is torwards the bottome of the engine?

thanks to all for the help!

 

[paultjohnson]

Re: Won't turn over, watery oil, coolant leak!

yep thats the crank pulley The big main one that drives your belt s

 

[jpmack]

Re: Won't turn over, watery oil, coolant leak!

"Crank pulley"? not exactly sure where that is. the below picture i am pointing out a bolt on the lower pulley, would this be it? If so witch way do i turn it and is it possible to put to much preasure on it? Also i don't have a breakerbar would a pipe on the ratchet work?

 

[paultjohnson]

Re: Won't turn over, watery oil, coolant leak!

also if your engine engine wasnt properly winterized there is a chance the pistons are actully rust frozen to the cylinder walls it may take a good all nite soaking with some penetrating oil to free the rust. Also when manually turning the engine from the crank pully nut. Try to maintain the correct engine rotation direction

 

[h20cali]

Re: Won't turn over, watery oil, coolant leak!

The lowest pulley at the bottom of the engine is the crank pulley. Find a socket the fits the center bolt and try to rotate it with a wrench. If it does not turn then your engine is most likely frozen. Anytime you have water in the oil that is a bad sign.

I would use the starter as little as possible since you could damage your crankshaft using the starter if the engine is frozen. It happen to me and it only escalated the rebuilt cost.

If the engine does not spin, most likely you have a frozen piston. If this the case you are looking at major engine work.

Good Luck.

 

[paultjohnson]

Re: Won't turn over, watery oil, coolant leak!

you can tell which way your engine rotates by looking at the timing marks on that little plate above the crank. The line on the crank pully will go by BTDC before top dead center maybe marked with a + on its way to top dead center Follow? Like 8 deg before 6 4 2 0

 

[EddiePetty]

Re: Won't turn over, watery oil, coolant leak!

NOT being a Volvo kinda guy......could the drive be locked inlieu of the engine?

 

[jpmack]

Re: Won't turn over, watery oil, coolant leak!

well it is to dark out side now for me to do anymore, i sprayed a lot of wd40 into it and will let it soak overnight. cross my fingers and hope it loosens up!

 

[jpmack]

Re: Won't turn over, watery oil, coolant leak!

NOT being a Volvo kinda guy......could the drive be locked inlieu of the engine?

eddiepetty, i'm not exacly sure what your asking?

 

[ChrisCraftJohnny]

Re: Won't turn over, watery oil, coolant leak!

He means, is the boat in gear? Are you sure the Outdrive is in neutral? Is the drive broken and causing this mechanical lock up?

All possible.

To make sure the throttle/gear is in neutral (straight up) and go out back and turn the prop by hand. Does is spin freely?

Johnny

 

[jpmack]

Re: Won't turn over, watery oil, coolant leak!

The prop does turn both left and right!

 

[ChrisCraftJohnny]

Re: Won't turn over, watery oil, coolant leak!

Just thought of something I never thought of before.....

If the engine is a reverse rotating engine, the crankshaft end for the balancer/pully must be tapped with left hand threads.

Otherwise, the balancer/puller could come off under use. And trying to use this tried and true method of turning the engine with a wrench would not work on a right hand tapped crank that turns counter clockwise (from the front)

I know, I know, engines directions are deternimed from the rear of the engine or OUTPUT of the crank and a normal engine turns counter clockwise from the rear. But most work we do is up front. So, clockwise is the direction we see on a normal engine. This is why you are able to turn the engine with the crank bolt. You are tightening it until it really can't be tightened any more. Thus, the torque is transmitted to the crank which turns the engine over.

If the engine was set up for reverse direction (a marine oddity) this method would only loosen the crank bolt. Unless of coarse it has left hand threads.

Anyone know for sure?

Johnny

 

[ChrisCraftJohnny]

Re: Won't turn over, watery oil, coolant leak!

The prop does turn both left and right!

I would say then you have a locked up engine.

Use the pipe and the socket and turn the engine Clockwise. Don't use extreme pressue. Rather use a jarring action on the cheater pipe. Like, place your weight over the pipe and jerk your weight down on the leverage. (doin the jerk)

If you catch my drift, hopefully the engine will also!

Johnny