[Fireisland1]

Pic 2 is a zinc. Not a drain. That is raw water side of HE. Look below and aft for the aintfreeze drain

[Fireisland1]

First thing is to figure which belt is the troublemaker. I use a bit of brake cleaner. [ very little ] Spray it on either belt when squeaking. That will eliminate the good belt. It evaporates quickly . If it’s a serp belt , the use the extender tube and spray just on the inside. If it doesn’t go away it’s an outside roller. 

[Fireisland1]

Ridged 31410

[Fireisland1]

ridged 31410 

[Fireisland1]

Next time . Start and shut down . Then take the filter off. I bet you have a full filter. 

[Fireisland1]

After 180 you better start doing some serious maintenance 

[Fireisland1]

Check 3 things

Pressure, temperature, voltage . Compare the data to the other engine 

[Fireisland1]

Who cut the hose off with a wiz wheel? That need repair also

[Fireisland1]

 A good start would be with a pressure gauge at the on engine fuel filter

[Fireisland1]

I would think it would be as simple as taking the 2 lines off the cooler and connecting them together. 

[Fireisland1]

Probably gear oil cooler breaking down.

[Fireisland1]

Marks, you can certainly do it. I would leave the fill cap off, just in case your vent is not working properly. The Cummins pump will pull a lot of water. You wouldn’t want to collapse a tank.

[Fireisland1]

The very first thing I would do is send in a diver. Check the hull , prop and rudder. That must be eliminated as a culprit .  

1 user thanked author for this post.

Tony Athens

[Fireisland1]

I had the bowl sensor go bad. Randomly would throw a code. SBM fixed me up, with a new one

 

[Fireisland1]

What was the solution ?

[Fireisland1]

I suspect you can chase this all day and somewhere you will not be within spec. Boat hulls act very different then a computer controlled load test. There will be humps. Somewhere a sacrifice will have to be made. I doubt any harm is caused by burning a higher rate at low loads.  Re-pitch for 2000 cruise will put you at 2200 for the same speed . Then you will be burning the same fuel at that RPM. You may then find somewhere else you do not comply with Cummins. You could be chasing your tail.

[Fireisland1]

Maybe your Battery Man reversed polarity to one circuit then corrected it , leaving off the ground intentionally to hide his error. 

[Fireisland1]

If you took the reading off instruments, you need to confirm it with a mechanical gauge. Then come back with findings. 

[Fireisland1]

Just get a 22 cal. Gun cleaner and ream it out

[Fireisland1]

Don’t make this your Final decision, phone a friend. Why would you invest in a ‘ near exact ‘ replacement when the original was not right. This makes no sense to me. Get something built properly and forget about it.  Maybe $5k . If you ruin the engine it’s $40k and you still will need a new exhaust. 

[Author]

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