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Old 11-08-2013, 22:22   #346
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Re: I was Bored so Pulled the Head on my Yanmar

Thanks BobConnie for correcting me! In that case, you're absolutely right! My apologies for the oversight.

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Old 11-08-2013, 22:34   #347
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Re: I was Bored so Pulled the Head on my Yanmar

Yes we are talking about an oil line, "Not" Diesel, from the block to the head with only 60 psig. The tubing is rated for 1900 psi. Plus not brazing it which could weaken the tube ends and cause premature failure... Going to finish it up tomorrow....

So close to the end of what has been a really busy month. Glad to have that behind me.

As you might expect, I do not have an overabundance of tools. A set of metric sockets with some deep sockets (not a complete set) and a set of wrenches, a few crescent wrenches, vice grips, a hammer, screwdrivers, feeler gauge, curclip pliers, a torque wrench, and a few extensions. That's about it. Oh a 18" breaker bar and a 36" long cheater bar. Plus borrowed a 36mm socket from a few guys and had one special tool made.

Used the boom vang and main sheet block and tackles to pull the engine out. Purchased a few couplings to use with some used anchor chain I had to attache the main sheet to the engine. Had a big guy do the vertical hoisting. Used my bucket bondage rope wrapped 3 times around the boom with the main halyard on top and extra anchor shackles on the bottom to connect the mainsheet to the rope wrapped around the boom. That worked like a charm.

Used two wood fender boards to support the engine in the cockpit. Lucky I have a narrow cockpit. That's about all I had to rebuild the yanmar.

Oh I used a 22 rifle cleaning kit that I had kept from my dads stuff, to rod out the heat exchanger. That worked like a charm too. Not that the heat exchanger was that dirty. But as it was already out... Just a light film after 1100 hours.

That and a lot of time and the yanmar shop manuals and a micrometer for measuring. Well and 32+ years of engineering experience and over 50 years as a tool getterer for my dad.
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Old 11-08-2013, 23:35   #348
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You've got more done with less than most anyone else I know and you should be proud of what you did. While others whine about what they don't have you took what ya had and made it work
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Old 12-08-2013, 09:59   #349
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Re: I was Bored so Pulled the Head on my Yanmar

Great job/great topic. What's your next "project"? You'll have everyone's attention!!!
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Old 12-08-2013, 10:46   #350
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Re: I was Bored so Pulled the Head on my Yanmar

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Don't listen to them Sailorchic34, I have done the repair on this steel oil line by drilling out the steel tube ends from the banjo fittings and silver soldering in copper tube. It was fairly easy and quick and I gained a fair bit of satisfaction in being able to salvage the fittings and do the job myself.
Has anyone ever considered just getting a high quality, flexible, SS braid covered, HP oil line made up by someone like Aeroquip?
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Old 12-08-2013, 10:48   #351
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Re: I was Bored so Pulled the Head on my Yanmar

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Copper and brass are not recommended as Diesel fuel lines, because Diesel reacts with these metals. Add to that, a very small percentage of water contaminant that exists in Diesel fuel will corrode the thin walled copper tubing. Standard copper tubing used as a fuel line is not thick enough to handle pump pressure and the corrosion; it will break then leak. It is preferred to use stainless lines for Diesel fuel.

Mauritz
Wierd... almost every large boat I've had came with copper fuel lines from tank to engine room.... and back.
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Old 12-08-2013, 10:58   #352
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Re: I was Bored so Pulled the Head on my Yanmar

Cheech.....like yours, my ole/old boat has copper primary and return fuel lines.
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Old 12-08-2013, 13:00   #353
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Re: I was Bored so Pulled the Head on my Yanmar

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Wierd... almost every large boat I've had came with copper fuel lines from tank to engine room.... and back.
Yeah, ours too!

I kinda question this anti-copper dogma... does not equate with observations.

Cheers,

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Old 12-08-2013, 13:13   #354
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I've been told that no zinc should be used in diesel fuel lines (like galvanized steel pipe). But never the no copper thing.
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Old 12-08-2013, 13:27   #355
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Re: I was Bored so Pulled the Head on my Yanmar

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Yeah, ours too!

I kinda question this anti-copper dogma... does not equate with observations.

Cheers,

Jim
I' ve been told that the modern (BIO) diesel in combination with copper can cause problems.
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Old 12-08-2013, 13:35   #356
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Re: I was Bored so Pulled the Head on my Yanmar

Newer production boats have stainless fuel lines. Older boats were fitted with copper lines. Mercedes Benz, a few years ago, had issues with copper fuel lines in their Diesel cars; sudden breakage and leakage. After several studies, they no longer have copper tubing for Diesel; switched to proprietary alloys and stainless. (I really don't know when the change occurred, sorry.)

Mauritz
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Old 12-08-2013, 13:50   #357
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Most new production boats I've been on have aluminum fuel pickups and rubber hose. I've not seen many, if any stainless fuel piping below small mega yacht statute.
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Old 12-08-2013, 14:27   #358
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Re: I was Bored so Pulled the Head on my Yanmar

Hum, Fingers crossed but I think I'm done. All the tools are put a way and I think everything is hooked up to the engine/ transmission.

Plus best of all the engine runs with no leaks. Still have to run it with the transmission engaged. But the engine runs pretty nice.

Lordy I sure hope I'm done. I is pooped, bruised, scraped in too many places...

But I am feeling pretty good about the engine....
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Old 12-08-2013, 15:17   #359
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Re: I was Bored so Pulled the Head on my Yanmar

Its Official. I am mobile once again!!. It all works and works well.


Really really happy. Gee its been a month since all the tools were put away.

IT IS DONE!!!!
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Old 12-08-2013, 15:21   #360
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Re: I was Bored so Pulled the Head on my Yanmar

Awesome work SC. Great thread.
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