Water in my Engine!

79nautique wrote: nuttyskier2002 wrote: 79nautique wrote: nuttyskier2002 wrote: Pull your spark plugs and see if you have any water in any of the cylinders. If not, it's not the exhaust manifolds. It could be an intake manifold though. Is yours aluminum? They corrode easier. please keep your dumb ass malibu comments to your self, your not helping out the guy at all. Aluminum Intake corrosion please. But then again I expect dumb sh*t from a jack ass like you. Chris, WHAT IS YOUR PROBLEM? Can't you deliver a post without cutting someone down or name calling? I'm going to explain how an intake can cause this problem. Pay attention and read very carefully. You might just learn something! There is a water passage that connects the two heads together that goes through the front of the intake. I have seen these corrode through near the flange that bolts to the head. This can happen on the underside of the manifold as well. Now, what is below the intake. That would be the valley of the block where there are drain holes for oil to get back to the pan. Now, I wasn't trying to tell this guy that the intake was his problem. I just mentioned it as a possibility. That's it! If you had something to suggest that could be this man's problem, why didn't you offer it here? Oh, let me guess, you couldn't spell it. Too many of your posts read just like this one. You hammer people for their comments but you have little to offer in return that someone can actually use. 4023 posts of you calling members names and belittling them and using vulgar language has landed you the "Grand Poopah" status. You must be proud.     I only hammer jack ass' like you, Start a Malibu site and offer your worthless banter there. Yes Aluminum corrodes it also will oxidize instanly too, but you have to have special equipement to detect that too. Now that your scratching your head, what is rust? oxidized iron maybe? what's the time frame for that to start. You offer nothing of value but tail chasing circles and wild goose escapaids and where do those go no where. Now if that aluminum intake as been on the boat for thirty years then it might corrode through but I really doubt it's been on the boat that long and pigs have a better chance of flying than your theroy's or help.

There you go again with your name calling. I would expect that from a child, but most of us are adults here. So how about offering your advice in a more constructive manner.
They offer medication for symptoms such as yours. It's called Prozac. Try it and maybe you won't be so bitter all the time.

There is a reason that aluminum corrodes at a faster rate than cast iron. When you mix dissimilar metals (iron and aluminum) in a corrosive environment the less noble metal (aluminum) will render itself as an anode. Also, I didn't tell the man that this was his problem, I am merely stated it was a possibility.   Especially since his engine does have 1500 hours. He didn't clarify that his intake was iron until after I posted this so chill out. Besides, it sounds as though there are some rather senior members on here who do agree with me. If pointing this simple fact out makes me a jacka$$, well I guess I'm not the only one on this site. I too am installing an aluminum intake on my boat. But I will keep an eye on mine. What you do is your business. Furthermore, oxidation and corrosion of aluminum are the same thing. And the only detection device it takes is the human eye. It reveals itself as a grayish white colored powder. Now don't you feel smarter? You can now go and post this information on another thread and earn yourself some more "Poopah Points".

There is a easier simple method. Block off the inlet hoses to both manifolds.
Remove both exhausts, change oil and filter, install the fake a lake, start motor. This is loud and if you don't rev it the fire will stay close to the head.
Run her for a few minutes, check the oil.Still no water, repeat the above.This will tell you where the leak is. Manifolds or the risers, My guess is a leak at the riser connection on the starboard side.......

I do not think this is an issue here , less damage than water in the oil.
I would not bring it to 7000 and hold it there ,if you think valves are a problem......
Shove shop towels into the ports on shut down.I would be more concerned of the oil contamination than the valves,JMHO..........

Some say it is a gasket, others say it is a exhaust manifold/riser problem.

Dont know where to start! I guess start with Boat Dr's suggestion, then start breaking the engine down.

Wow, this isn't fun. At least the weather is getting colder.

lets think about this logically, water going into a cylinder will usually steam clean the plug, pulling the plugs is quick and easy, look for a very clean plug to isolate if it is leaking in that area.
Do you think the water is entering while the engine is running or when it is not running? if it is exhaust manifolds they will leak into the engine when not running and burn off when you start engine and usually you will be able to tell by studying the spark plugs.
With the engine running water can enter obviously thru other parts of the engine such as intake, head gaskets, cracks and so on. it wont enter thru the exhaust manifolds while running, thats why it is important to try to determine when the water is getting in there if you can.
If you find an unusually clean plug out of 8 you can start to pin-point where the problem may be.
Alot of water indicates a leak in the pressue side of the cooling system such as a crack in the intake or a crack in the block or in the head gasket area.
A small portion of water may indicate exhaust manifolds maybe dripping in while not running.
First determine when the water is entering and use the process of elimination, were all shooting from the hips trying to figure out the problem. the engine has to be dis-assembled to some point as it is, observing closely on dis-assembly and knowing what to look for will isolate the water problem

so cracked block then right?

leo0648 wrote: If the block was cracked, would I be getting good compression in each cylinder?

yes, the block being cracked will have no effect on compression.

If it is cracked let me know. I have a friend with a spare RH PCM motor from a 80's 2001. I also have a spare set of GT40 heads that we can make a deal on. I am in East Texas too.

Brad

leo0648 wrote: If the block was cracked, would I be getting good compression in each cylinder? My friend was watching the exhaust ports with the exhaust manifolds off while we ran the engine. He said each port was firing good. The intake manifold gaskets were really hard and brittle. There was a piece by the water jacket that was messed up, but I don't know if it was from when we took off the intake.

Can you take some digital pix of the intake and gasket and post them here? Also look very closely at the valley area of the block in the area where the suspect intake gasket. Look for evidence of a water trail. Another question....how long did you run the engine with the manifolds off? Did you have fresh oil then? Is it now contaminated too?

I am not sure. Its at my dealer. The guy who owns half the shop has it rat holed. Call Shannon at Ski N Sports. 903-509-1ski

Boat Dr,

Slidell LA. We just took out my Dad's boat to find that the raw water pump was spitting water all over the engine. The reason we figured this out is because the alternator stopped charging and our voltage dropped. We just bought a brand new Mando Alternator this summer. Maybe I should switch hobbies, this boating thing isnt working out.

Its a malibu, never again will I buy a boat with an indmar engine. We hate indmar from the bottom of our hearts. Just kidding, but I would much rather him sell the malibu and get a super sport!

Dave you are on the right track. Water out the top only, not out those 4 holes on the side.
Diesel and 30 weight at a 50/50 mix, with the plugs out , spin it and drain. Will take a few cycles but will clear it out and not damage any parts....
I have a set of manifolds and risers,take off when I bought the Hi-Teks.They need a new home.........Boat dr

Dave do a Google on 71354......
Monterey La.You cannot get there from here,but if you go there you can.
Welcome aboard this boat of misfits and boat nuts.Lot of good people here willing to share their knowledge and friendship....
Send me an E-Mail adress and will shoot ya some pics,they are Osco brand, direct replacements for the PCM.Only have a few hours on them , removed for dietary reasons.
The S/S Hi Teks tip the scales at 12 lbs the OEM cast iron about 44 lbs . boat dr