Jabsco raw water pump leak on Beta engine - Part 1

Beginning of March 2017 - Tied up in Marina Mazatlán, Mexico

This is the continuing saga of the water leak we found when starting the engine after doing all of the engine annual maintenance.  We thought the water was leaking from the bottom raw water hose on the impeller housing. 
Jabsco raw water pump 
Jabsco raw water pump  29460-1701  4310
The salt water keeps forming on top of this hose.
Trident 3/4 wet-dry exhaust-type hose.
Old hose clamp to left new one at right. Both solid hose clamps.
Trident 3\4 inch wet exhaust hose trimmed off and new solid hose clamp installed.

We have since trimmed off the hose using the Dremmel tool to get a nice even cut. The hose has wire in it. We have moved the hose clamp further up the hose to try for a better seal. We have tried this several times and there is still water forming at the top of the hose. I tried to feel around the Jabsco impeller housing and thought I did not feel any water but my fingers are big. Debbie tried and found that there was water on top of her finger indicating it may be coming from the housing.

 The hose is about 13 feet long. If we were to replace it we would get 14 foot and make the loop a little higher. We will make the loop higher anyway but the snaking of the hose will not be that easy but the re-snaking and the price of purchasing a new hose when this one is still in good shape is not an option. At least at this time we think the hose is in good shape, if we do not find another posible leak then this one will get replaced.
We will pull out the impeller and check the Jabsco impeller housing and pump.

More work on the Beta 38hp for the stack tube and salt water leak

Beginning of March 2017 - Tied up in Marina Mazatlán, Mexico

 Well I did not realize the stack tube could leak from the inside to the salt water but yes it can. This was a surprise. We were dealing with a leaking hose at the impeller housing so when removing the hose and catching the salt water from the impeller into a yogurt cup Debbie noticed a yellow tinge to it. While trying to repair the hose we did more tests. We would run the engine the 10 min to warm up then 10 min in reverse then 10 min in forward. Then we would remove the hose (it kept leaking) and out would come yellow tinted salt water from the impeller housing. This was draining out of the stack tube and hoses to the stack tube from the impeller. You could say we were disappointed as this meant doing the stack tube job all over again. Bummer. Better to find out now at the dock though.
So we learned something new, the hard way.
The in and out to the impeller are sideways on our engine. So the in is at the bottom of the impeller housing and the out is at the top. It then goes into a pipe to the stack tube. The pipe is connected to the impeller housing with a piece of hose and at the stack tube end with a piece of hose.
This hose comes off the sea strainer.
Our sea strainer. We have built a fresh water flush into the sea strainer and this shows the salt water or fresh water into the sea strainer. Just flip the valve for the water type. The other side of the sea strainer has the hose to the impeller coming out going to a loop and then the sea strainer. Of course we still have a salt water thru hull with a valve and a strainer on the outside of the hull to prevent bugs and such from clogging the thru hull. This is a little much info but here it is anyway.
 The plastic sea strainer if for one of the HVAC units.
Removing the cap from the rear of the engine stack tube in the heat exchanger.
There was gooey with antifreeze in parts of the cap by where the cap was near the bad spots on the stack tube below.
Here you can see the O-ring looks fine but the bottom flow of the stack tube looks somewhat clogged. We think this is a result of the Prestone antifreeze 97 percent and then mix it 40\60. That is 40 coolant 60 water.
Next we took off the forward stack tube end cover (front of motor-Beta 38hp) and we saw that the seal was not sealed properly! Now how did I do that?
The stack tube front and you can see where the antifreeze was coming out the seal and going into the seal and going into the stack tube (salt water).
 The salt water circulates through the holes and then out of the boat. The antifreeze circulates around the stack tube in the heat exchange..
So course every part got toughly cleaned and we had new O-rings that we installed.
What we think happened is this
 When I put the stack tube in I did get the O-rings seated right as I made sure of that. That's not to say that one could have slipped as I was bolting the stack tube in. That is where the mistake could of happened.
 When I bolted the stack tube in first you should align the grove of the aft stack tube with the bar on the stack tube. You can turn the stack tube side to side a bit if you have it centered. Then I removed the aft cover after it was in place, holding the front of the stack tube in so it does not move by pressing on the forward end. Then holding the stack tube at the forward end I tightened the back stack tube (we have one bolt) by hand and tight as I could get it and was pushing in on the aft stack tube to get the bolt as hand tight as possible. Then I put in the forward O-ring and made sure it was seated prpperly. Then holding the aft stack tube cover (just in-case) I hand tightened the front stack tube cover bolt as tight as I could get it by hand. Then took turns on each end evenly. Meaning, say a quarter turn on the back then a quarter turn on the front etc. until good and tight but not forcing the bolts as we do not want to snap one off. The bolts do bottom out in the stack tube.
 So, Wa La,  all done and it worked great the second time around which was after we finished putting it all back together. We re-filled the antifreeze with the old stuff which was still new. Then we tested the system and it worked fine and pure salt water coming out of the impeller housing an d no other leaks. Then we had to drain the system of the old antifreeze and we put brand new Prestone 40\60 antifreeze in that Debbe mixed up. Re-burped the motor again and we are good to go, well after we fix the hose.
We think the antifreeze to salt water leak was only leaking when the cooling system (antifreeze) was under pressure. Our system generates 13 lbs pressure and that's when the antifreeze would push out.
 So if we filled the system with water and pressure tested it then if there was a leak we just drain the water into the bilge and the bilge pump pumps it out. If it does not leak then the same thing only we re-fill with antifreeze and it is done. No wasting antifreeze as our engine access is not great so getting the santifreeze from the bilge using a wet vac. Now we drain it inot yogurt cups and then dump them into a bucket. Then pour the bucket into containers for disposal. A bit easier and less messy than the wet vac.

 So this lesson gave us an idea. A new tool. Love new tools! If we replaced the seals in the stack tube (recomended every year) then with a Coolant Pressuer Tester kit something like this

 This tool is not a lot of cash and would allow us to test the system nicely.

Now back to the hose.

 It looks like the hose is fine. It may be a crack in the impeller housing.
This means a new post for the leak.

Debbie glued up a flat fender needing repair

Beginning of February 2017 - Tied up in Marina Mazatlán, Mexico
We had ordered two of these flat fenders for our Achilles LSI-310E dinghy. For some reason this one came un-glued. The top layer on each side came off. The brand is probably here on the blog from when we purchased them. Probably from me kneeling on it all the time doing boat projects 😖 Still, they should hold up to that, you think?
Debbie glued the tops back on and re-installed the lines.
Now we are carrying around a fender we can use again!

Pot luck at s\v Birtie - Isla Mazatlan Golden Rresort Marina

Middle of February 2017 - Tied up in Marina Mazatlán, Mexico
We went to a pot-luck dinner sponsored by s\v Bertie at  Isla Mazatlan Golden Rresort Marina. The marina is just on the other side of a bridge connecting the island that sits in the bay where Marina Mazatlán is. Isla Mazatlan Golden Rresort Marina is more of a working marnia for some tour boats. There is also a set of slips across from it which is part of Marina Mazatlán and has all the local sport fishing boats so Isla Mazatlan Golden Rresort Marina can be a bit noisy but in a good way 😀
s\v Bertie has a wide beam.
We never really got the lowdown on this s\v Bertie.
Interesting setup.
The dodger is a combination of things.

The mizzen boom is not there?
Stable boat when you can have a 55 gallon steal drum up on deck!

One heck of a bowsprint!
There is a small community at this marina...only
a few of us from over the bridge!

There´s Debbie in the blue jacket - it was a little chilly
at sunset out on the dock.
This cat was modified so the middle pontoon was lowered. It is now a cross between a Trimaran and a Cat. The have crossed some oceans in it and are headed south to Panama soon.