75 F-26 318 round 2

[rdj59]

Now that i've actually got the engine able to run correctly and long enough to warm up another problem surfaced. Went to change the oil on it and what do i get greeted with, milky oil. YAY!!! I changed the oil, filled it up to full, and let it idle for 10 min. Pulled dipstick out and it was now to the first L of full with snow white oil. I'm letting it sit over night and tomorrow i'm going to pull the plugs and turn it over to see what cylinders are spiting water. More than likely the manifolds or risers are shot. I'm pretty certain the head gaskets are okay but i'll do another compression check just to make sure. It's funny, when i checked the oil, i kinda chuckled. Don't you love it when you buy problems. At least that's what it starting to look like. Chalk it up to experience. Now all that'll be left is when we put it in the water the trans will be shot. I'm going to stop typing before i go to far. PO might be reading.

Jeramie

[prowlersfish]

PO ?

[Jerry]

Previous owner....

[gjrylands]

Parole officer was the first thing to come to mind. Previous owner makes more sence.

[captainmaniac]

Been there, done that... Upon taking delivery of my F32 I began the trip home (through the Trent-Severn canal and lock system between Lake Simcoe and Lake Ontario). At each lock, one engine got harder and harder to start... Short form of the story, on about the 3rd day of travel and 25 or so locks, it wouldn't even turn over. Water in the cylinders.... One exhaust manifold was cracked and every time I turned the engine off, water was running back into any cylinder on that side that had an open exhaust valve.
Needless to say, I kinda lost my temper with the owner of the marina I bought the boat from (since he also owned/ran the brokerage that sold the boat, and the brokerage had claimed that their service department had done all servicing on the boat for the past several years...). I am pretty sure the manifold didn't crack the moment I pulled away from thte dock, so somebody knew something. In the end I still got screwed, but only for the cost of parts (but at least I knew I had one brand new manifold ... the paint was barely dry !!).

[guglielmo6160]

sh....t happens, boat engines are ALWAYS taking a pounding , thank god Im in the business, I sometimes wonder how anyone who is not a mechanic can afford to keep an old boat. and Jer, yes it sounds like manifolds /risers.

[gjrylands]

Water in the cylinders.... One exhaust manifold was cracked and every time I turned the engine off, water was running back into any cylinder on that side that had an open exhaust valve.

As captainmaniac stated, with a bad exaust manifold water enters the cylinder when the engine is off through the open valve and seeps past the rings. If you are pumping water into the oil while the engine is running, it is more then a bad manifold. I hate to say it, but it sounds like a cracked block.

[rdj59]

Ding, ding, ding!!!! We have a bunch of winners. Starboard manifold has about a 1/2" hole in the top above cylinders 3&5. Judging by the way the riser had scale, it was doing this for a while before we had it. Good thing it ran like a top before we got our hands on it. captainmaniac, i agree, you would think the owner of a marina/ boat mechanic would know whats going on with their own equipment and at least have the decency to tell a person what's going on. Instead, you unknowingly get stuck with the bill. To make things worse, i checked the dipstick for the drive and that's full of water to. Hur-f'in-rah!!! So know i need to pull the cooler of and see if i can get it recored or try and find a new one. The frustration just builds and builds until one thing just makes you snap. We're about at that point. But on the bright side, at least we're catching the issues now instead of on the water. Only thing left now is to put the boat in and have it take on water.

Jeramie

[prowlersfish]

sh....t happens, boat engines are ALWAYS taking a pounding , thank god Im in the business, I sometimes wonder how anyone who is not a mechanic can afford to keep an old boat. and Jer, yes it sounds like manifolds /risers.

Bill I agree 100% ( I am in the same ( or insane) business as you ) If Had to pay anyone I would be boat less

[rdj59]

We're almost 99% positive that the manifold or riser is bad. We filled the assembly up with water while it was still in the boat with water with the plugs out. As we poured water in we could hear water running out somewhere. Looked down and all i saw was water running out a cylinder. Cranked it over and it looked like old faithful. We've got the pistons soaking in marvel mystery oil to hopefully slow the rust process down. I had the same situation in my 74 Sea Ray last when one of my risers went. Ended up with over a quart in under 15 minutes of idling. Replaced manifolds and risers and all is well. That one had a nice long hole rite at the top of the riser. Any way we bought a set of manifolds, riser, and elbows from ebaisicpower on ebay. Next up we need to get the trans cooler pressure tested to see if that's where our water came from. Between 2 days ago and today we picked up enough water to go from just over full to almost spilling out the trans. Seeming as that's the only place for water to enter the system, logic would say that it's the culprit.

[prowlersfish]

Unless it went under water the trans cooler is the only way for water to get in . you need to change that fld now! and do it seveal times

[rdj59]

Pressure checked the cooler myself. At 20 psi she was a bubbling. New one an the way as well. Purchased a 9" one. Changing oil as i type. Happy happy joy joy.