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micky

Well, level is still at full. Will run the boat next weekend and if there is no change I'll drain the water with dye and refill with coolant.

micky

Went to the boat today and the level was at the "full" mark like it should. Hopefully it was air in the system. Ran the engines today for 1.5 hrs until they got to temperature and will check again next weekend.

micky

I will pressure test it again next weekend.

micky

Went to the boat today and coolant is low once again, about 1/2" low on the reservoir. At this point I'm going to replace the exhaust manifold. I'll keep you guys updated.

micky

Did that qa long time ago and the pressure didn't drop.

micky

Ran the engines last night at idle for about an hour and this morning there was no coolant missing. All I can think is that the drain that was hand tight was the issue. I'll run it next weekend and confirm back.

micky

Hi Tony,

Yes I did replace both caps with new ones.

micky

Micky I'm not sure what the issue is here. If the engines are not overheating what I'm reading is just normal level fluctuation in the overflow tank and the expansion tank. When my 6LP's were new to me I kept peeking into the expansion tank and seeing it was a little low, trying to add coolant. Who...

micky

I bought mine from www.turboturbos.com

They were recommended on this site.

micky

Went to the boat today and the reservoir was about 1"-1.25" low. Also the engine needed to be topped off. I haven´t started the engine since last weekend when it was a little low and I didn´t filled it back up to the "full" line. Can this be that air is getting out of the system? Because its weird t...

micky

Went to the boat yesterday and removed the coolant from the engine. When I was going to open the coolant drain on the heat exchanger I was able to open it using my hand, it wasn't tightened (maybe this was the issue, but the bilge always has been dry). Went ahead and removed the coolant and flushed ...

micky

Micky How much did you lose? If it was a head gasket, I would suspect that you would see steam coming out the exhaust and possibly milky oil. Exhaust Manifold is always a possibility, or you have a leak somewhere. No milky oil and both engines steam while running if its early morning. During the da...

micky

3/4" - 1" down on the reservoir.

I'm going to remove the exhaust manifold once again and pressure test it to 20-30 psi and while its pressurized I'll heat it some with a torch to see if the pressure goes down.

micky

Last september I replaced the turbo because it had a pin hole. Ran the boat in november and the coolant was at the right level. After running the boat last weekend the coolant level is down again. I ordered the hydrocarbon tester to see if the issue is the head gasket but I doubt it. I'm leaning tow...

micky

After replacing the turbo (it had a pin hole) coolant level is still going down. I'm thinking its the exhaust manifold as the coolant level only goes down after running the boat and cooling off. Bilge is completely dry.

micky

Went to Culebra with my dad for the weekend. Everything ran great and not 1 thing failed on the whole trip. Cruised at 3000 rpm 16-17 knots until my dad took the helm. 3200-3300 rpm at 20-21 knots. Let me say that I was only at the helm for 30 minutes during the whole weekend......... https://i.imgu...

micky

Believe it or not, its the wettest boat I've ever had. I removed the front teak spray rails as they were rotted and it was a huge mistake. On windy days all the spray goes directly towards the captain.

micky

Finally the enclosures were finished. Front and half of the sides. Now we're working on the other half of the sides. https://i.imgur.com/LLSlIQm.jpg https://i.imgur.com/80r1Ka4.jpg https://i.imgur.com/6icZlRb.jpg https://i.imgur.com/rQv0tgJ.jpg https://i.imgur.com/6ehEPyj.jpg https://i.imgur.com/7za...

micky

Thank you all!!

micky

First "long" cruise.

https://imgur.com/Xk1nO7D

https://imgur.com/59tF0uM

micky

I can finally confirm that the issue is solved.

micky

They just did a keel up restoration, New Cat C7.1 engines, complete tower and interior.

micky

Peter, whats the lenght of the tiebar?

micky

Installed the turbo last night and was able to start the engine. As soon as it started I knew I had forgotten a plug somewhere as I could hear a leak so this morning I went and removed that plug from the old one and will install it on saturday.

micky

I prefer to know what the issue was before having a $150 credit.

micky

I think I found the issue inside the turbo. A pin hole. I poked it and water came out so cut the turbo in half so I could see it better.

micky

Turbo lost 5 more psi yesterday during the day and this morning it had lost another 10 psi. I ordered it from the website you posted, couldn't find it anywhere else for that price.

micky

Ordered one of the OEM at 4pm and at 5pm it was already shipped.

micky

Pressure tested the turbo to 60 psi of nitrogen and it lost 5 psi in the first 10 minutes. Left it pressurized until tomorrow morning.

micky

Are these OEM turbos or chinese? I've seen the Yanmar turbos from $5,500 to $3200. IHI turbos in the $2500 range.

micky

I may have found the leak, removed the turbo and on the exhaust side it has coolant residue, I tasted it and it tastes sweet, not salty. As you can see in the pictures, its coming from behind the blades and the riser has no water indications. I will pressure test it tomorrow. https://i.imgur.com/0Bj...

micky

All clamps have been triple checked and are tight. Both caps are brand new. I pressure tested the system a few months back when this issue started, I left 15 psi on the engine for 24 hrs and no loss of pressure, I also pressure tested the exhaust manifold. Three things that may be the issue, either ...

micky

No steam.

micky

I'm still chasing this leak. No visible leaks, turbo and exhaust manifold have been pressure tested, coolant pump is not leaking. Would it be possible that it is a head gasket leak?

micky

Went to the boat, removed the tiebar and cut it in half, then screwed both ends completely in and unscrewed them 4 turns back. Installed everything back and used a SS pipe as a sleeve. This pipe I had it from when I did the swim platform brackets in 2018-2019. The tiebar fit perfectly inside the SS ...

micky

After Labor day weekend I'll remove the tie bar to take measurements and see what I need to buy. Maybe cut it in half and make an insert so I can set them in place and thru bolt them.

micky

Last weekend while scrubbing the bottom I saw that my rudder's were not straight, If I placed the stbd rudder straight, the port would be looking out towards port. I went into the bilge and the tie bar is too short, its only screwed in 3 threads on each end into the fittings that hold the rudders. I...

micky

Thank you all.

micky

https://imgur.com/maTDSFZ

https://imgur.com/HRD6QFN

https://imgur.com/6JVFRqG

micky

Ran her yesterday for 4 hrs. In the videos I was doing 14 knots as the port temp gauge/alarm stopped working so didn't want to run her at high rpm. She ran flawlessly.

https://imgur.com/Ujj3IUv

https://imgur.com/iGzoA0r

micky

Nope but it hasn't leaked.

micky

Installed everything back yesterday, also replaced all the hoses in the cooling system and so far so good. The level still hasn’t gone down.

micky

Mickey How far below the line does it drop? If you bring it back up to the line, and run it, does it drop again by the same amount? If it is less then I would be really scratching my head, since you would think it would be the same or worse, but if it was less then I would say there is air slowly b...

micky

Yannis wrote: ↑May 18th, '23, 00:31 Do you always use the Yanmar pink juice?

Yes sir.

micky

I will try that. Today I pressure tested the exhaust manifold and turbo and all is good. I replaced the heat exchanger with another one I have. So don't know where else to look.

micky

I saw that but wanted to see if he was still around. I removed the exhaust manifold and found 1 pit on the front cylinder exhaust. I'll pressurize the manifold today and apply some heat on the pit to see if its leaking there.

micky

Was hoping someone could help. I am loosing freshwater from my engine at a rate of about 1 gall every hour while running. The alarm sounds, but the engine never actually over heats. There is no water in the bilge, so I am assuming the water is either going out the exhaust manifold or the heat excha...

micky

A pressure check of the cooling system cold can confirm a leaking hose. One area is the heat exchanger. Is the coolant recovery tank losing fluid when it cools down? Is the fluid is sucked back into the engine? Does the tank gain much fluid when engine is hot? A weak cap can allow excess fluid to l...

micky

This is the one I had installed.
https://gemlux.com/collections/boat-vents/products/908

This is the one I just installed higher.
https://gemlux.com/collections/boat-vents/products/901

micky

I'm going to change the whole Racor 900 system and add water sensors to the new ones. Also inspect them after every trip.

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