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  Topic Review (Newest First)
2 Hours Ago 05:43 PM
RTB
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
We're tearing down the engine today. We'll drop the pan and pull the head so the insurance adjuster can have a look at the damage on Monday morning and make a final call on whether it will be covered (improper alignment vs. wear-and-tear). We'll try to have the new engine in here by the end of the week and be back on the move early the following week.

In the mean time, the boys are having a great time fishing, scootering, and playing X-Box. So it's all good.

I'll keep you posted.
That's a pretty aggressive itinerary. I hope it works out the way you plan, Steve.

I just read your blog, and noticed (in the video) the filter those guys installed. It looks like a Racor 200 series filter. I sure wish they had installed a 500 MA, because of this - ABYC Requirements for Diesel Fuel Filters | West Marine Surely, your boys from Y.E.S. know about ABYC standards?



After having a good look at this alignment pic, it's way off. Why let it slide just because the mechanic says it's fine, when you know it doesn't "look right"? Have someone else check it out, if you can't figure it out? Why leave if there is doubt in your mind, considering the trip ahead of you and the boys? Same with the vibration. Turn around and figure it out. When the engine starts knocking, shut it down immediately, before more damage can be done. Drop the hook and call for a tow. Listen to that little voice in your head. It's saved me a few times.



Well, I feel I need to stay out of your business, but I'm pulling for you guys. Hopefully, things will smooth out for you.

Ralph
2 Days Ago 10:09 AM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

We're tearing down the engine today. We'll drop the pan and pull the head so the insurance adjuster can have a look at the damage on Monday morning and make a final call on whether it will be covered (improper alignment vs. wear-and-tear). We'll try to have the new engine in here by the end of the week and be back on the move early the following week.

In the mean time, the boys are having a great time fishing, scootering, and playing X-Box. So it's all good.

I'll keep you posted.
5 Days Ago 09:38 AM
VF84Sluggo
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
Anyway, this might sound crazy, but we're having a blast. The people here are seriously kind and generous - awesome folks. The boys are fishing and playing. It's a great adventure. No complaints.
And that's really what it's all about, isn't it? Enjoy the time with your boys...they'll be all grown up before you know it.

If it's any consolation, as a mechanic buddy of mine consoled once as I was facing a total engine removal and overhaul, "Hey, cheer up, there's nothing that time and money won't fix!"

Sluggo
5 Days Ago 04:13 AM
chall03
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
Anyway, this might sound crazy, but we're having a blast. The people here are seriously kind and generous - awesome folks. The boys are fishing and playing. It's a great adventure. No complaints.

I've never been lucky...just determined. So we'll get over this hump.

More soon.
Good on you.

It is the unexpected (mis)adventures that make for the best cruising. Herb Payson got two books out of it!

I have nothing to add on the engine other than damn.....
5 Days Ago 02:23 AM
Capt Len
Re: 1989 Hunter 40 - A million questions.

Long reaching for causes here. Is it possible that the modification to the water muffler reached back to the riser and injection point, then a dollop of water causes hydo lock,bent/broken rods and mayhem. Wonder if the cam is still timed right.Gear or chain, a well worn engine can jump a cog and stick valves into pistons.Just guessing, never pulled a little yanmar apart.
5 Days Ago 12:30 AM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by JonEisberg View Post
Damn, really sorry to hear about this, Smack... Sounds like you're in a good spot, at least, that can make a world of difference in a situation like this...

Your attitude, however, is stellar... You just might make a fine cruising sailor, one of these days...

:-))

Good luck, bud...
Thanks Jon. We'll catch up with you at some point. I can't wait for that beer. We'll definitely have some laughs.
5 Days Ago 12:28 AM
JonEisberg
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
We'll be liveaboards for a week or two while we try to find a longblock Yanmar 4JHE and get the rebuild done (anyone have one sitting around?). The guy here will pull the engine and drop the pan and we'll see what we've got. Then we'll figure out what's next.

Anyway, this might sound crazy, but we're having a blast. The people here are seriously kind and generous - awesome folks. The boys are fishing and playing. It's a great adventure. No complaints.

I've never been lucky...just determined. So we'll get over this hump.

More soon.
Damn, really sorry to hear about this, Smack... Sounds like you're in a good spot, at least, that can make a world of difference in a situation like this...

Your attitude, however, is stellar... You just might make a fine cruising sailor yet, one of these days...

:-))

Good luck, bud...
5 Days Ago 12:08 AM
smackdaddy
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by Loki9 View Post
How many hours have you put on the engine since purchase? Enough to rule out prior owner problems, I assume.

How many hours did the engine run between them working on it and it self-destructing?

I'd say any number less than 10 hours and the failure is 100% a result of something they did.

Even if it's a bit more than 10 hours, I just don't believe in coincidences like that.

Unless you find another obvious cause, like no oil, they have some explaining to do.
I'm with you. 10 hours is about what we put on it after their work before it blew up (3 hours up Galveston Bay, 2 hours out to sea, another 4 hours into Sabine Pass, then 1 hour toward the ICW - boom). And there is definitely no other obvious cause - that either the local mechanic here or even the owner of the original shop could find.

The two local mechanics' diagnoses makes the most sense to me. I'll get some of this terminology wrong - but here's the gist...

The dude in Kemah set the engine too far back and didn't get the alignment quite right. When coupled with the prop shaft, this put a good deal of pressure on the damper disc in the marine drive - which, in turn, pressured the crank shaft and introduced more torque. This also makes sense because when the Kemah dude showed me his work, the prop kept spinning slowly even when in neutral. And even he said that shouldn't be happening, but blamed it on a potential transmission issue (saying that I shouldn't worry about it right now). Add to that the new vibration and this theory sounds pretty plausible to me.

So - in this scenario, the forward pressure started eating away the thrust plates and eventually they failed, followed by the main bearing giving out. The loud clatter I heard was the crank-shaft moving forward far enough to get into the block.

We'll be liveaboards for a week or two while we try to find a longblock Yanmar 4JHE and get the rebuild done (anyone have one sitting around?). The guy here will pull the engine and drop the pan and we'll see what we've got. Then we'll figure out what's next.

Anyway, this might sound crazy, but we're having a blast. The people here are seriously kind and generous - awesome folks. The boys are fishing and playing. It's a great adventure. No complaints.

I've never been lucky...just determined. So we'll get over this hump.

More soon.
5 Days Ago 11:19 PM
Capt Len
Re: 1989 Hunter 40 - A million questions.

Before you pull the engine can you check the shaft alignment and turn the shaft by hand while disconnected to see if you can detect a wobble..A one inch shaft (yours is??)is amazingly flexible andI've seen them levered into position to meet the flange.
5 Days Ago 10:31 PM
Minnewaska
Re: 1989 Hunter 40 - A million questions.

Quote:
Originally Posted by smackdaddy View Post
I'm starting to wonder why the hell I should "fix" something that hasn't been "broken" for 26 years. At some point it gets a little ridiculous.
Bad luck I guess

Hope you get back to your cruise quickly.
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