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Engine Re-fit

Started by jimyoung, December 30, 2009, 08:38:17 AM

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jimyoung

Just found out that my engine will be here in 3 weeks and I haven't even started with pulling out the old one! I am assuming that I will need to pull and change the prop as well.  What is on her is the original (have no idea the pitch or diameter), it's done it's job for over 20 years and I've no complaints but with the extra horsepower it may not be aggressive to keep the engine from over-reving (is that a word?)

You guys with the newer 27's what prop are you running? Any of you have any experience with the folding props? I do very little racing anymore unless I happen to find myself along side another gunk-holer heading the same direction :) so I am not leaning in that direction, seems like just more maintenance, but what are your opinions?

P.S. I will post photos of the swap-out if I can figure out how, I found some good indtructions posted here somewhere and will revisit and attempt.

bmiller

I'd give the guys at Campbell Sailer at call. Tell them what you have and what you are doing. They will recommend a prop. I bought my three blade from them, good price and quick turn around.
http://www.westbynorth.com/CampbellSailer.aspx

While you've got the boat torn apart might as well put in a new cutlass bearing.

jimyoung

Thanks for the link to Campbell Sailer, I will check them out. Good advice too on the cutlass bearing, I did however replace it about five years ago when I had to replace the prop shaft due to some electrolysis problems ..... since then I have been much more diligent on the zinc as well.  Has yours always had a 3 blade prop? Mine has always been a 2 blade and I have left it on thinking it has less resistance in the water (not that that accounts for much when your pulling a dingy)

bmiller

#18
The boat had the original two blade, I switched to the CS three blade with less pitch hoping to get more rpm out of the diesel. Up here at 9,000 feet the little universal will not spin a prop designed for sea level. I really don't think you will ever notice the difference between a three and two blade while sailing.

One more thing, the shaft of the three blade is longer. That meant I had to find thinner zincs. I might look into prop nut zincs next.

jimyoung

The new Yanmar arrives today!!!! Miss B. is ready and hopefully it will be setting in place before sunset.  Say "Ahh!"

brackish

Hey, good luck with that.  Looks like you've got it all cleaned up and ready to go.

jimyoung

Well, after a few minor setbacks Miss B. has a new Iron Genny!  Now just a lot of rewiring and plumbing before I can actually hear it running.

Craig Weis

Nice job. Luv's ya boat maybe?
skip.

rwdsr

OOOOOOO! Pretty! Ya gotta do something about that sailors porn before they lock us up.  LOL
1978 AMF Sunfish, Sold, 1978 CP16 #592, "Sprite" - Catalina 22 "Joyce Marie"http://picasaweb.google.com/rwdsr53/Sailboats#

bmiller

Nice job. How did everything line up? Did you need to do much work to align the engine with the shaft? Did it all bolt up without any modifications, same number and size of fasteners? Did the engine come with a panel or is that an extra?
keep the photos coming, maybe from the other end also.

jimyoung

Well, I am about 80% complete and hope to "light the fire and kick the tires" so to speak this weekend!
I had to rebuild the electrical box (it extended too far aft and into the new motor as is) so went ahead and built a complete new companion way as the old one was too weathered to keep.  The breakers are recessed about half of what they were but looks like everything will work out fine.



Still more carpentry work to do and still have to enlarge my exhaust flange thru the transom but am close to completion.  The new engine fits, but the stringers were "just' long enough!



More as progress ensues.

bmiller

Very nice work.

What is the pump and strainer by the battery?

jimyoung

#27
I live in south Florida..... That is the A/C for when I am tied up to a marina in the Keys in August.  When I manage to stagger from the Tiki Bar to Miss B. she provides a cool comfortable "Haven" to recover from the ensuing hang over.  The FIRST piece of equipment that gets hooked up when crawling around the bilges on a sunny day.  Hey, it's in the 80's here already.

jimyoung

Fired it up today!  Started on the first touch of the key.  Music to my ears......... until I put it into gear.  Seems Bill was right in suggesting that I replace the cutlass bearing because it is making a noise.  Dove in and sure enough there is about 1/16" movement when I pushed up and down on the prop.  So it looks like I will be pulling Miss B. and changing the cutlass bearing, and probably the prop.  Hope I don't find anything else while she is on the hard.


No one happens to know the cutless bearing O.D. or length by chance?  I would like to keep her stay at the yard as short as possible, so I am trying to have everything lined up and ready when she comes out of the water.

Allure2sail

Please let me know how replacing this cutlass bearing install works out for you. I was told by the previous owner of Allure that he had the marina crew replace it and I swear they did not put a nut and washer on the lower bolt. The retainer plate for the cutlass bearing has always had a slow leak that is more of a nuisance than a problem. Last year I called ComPac and they said to use a few long 3/8' extensions and a socket to reach the nut on the inside to tighten it. I tried for hours to get a deep socket on it. Also tried the socket size above and below my best guess as to the size. Tried having someone turn the bolt head will I tried to engage it with the socket...no luck. The bolt just turns and turns but never tightens up. I really think they just stuck the bolt in there with just a glob of sealant. I am about to buy a small wireless inspection camera from Harbor Freight Tools (on sale right now) and look for myself. I hope that the people at Hutchins did not embed a nut plate into the the fiberglass itself because that creates another problem that at this time I don't want to tackle. I'm getting ready for launch and I have more important projects to tackle (windless installation). I would love to see what is in that retainer plate once you take it off, (must be a bearing or bushing and perhaps a seal of some type. One fix I was thinking of is to grind the head off the bolt push it back into the trough retrieve it (I hope) from the inside. I would then replace the bolt and put a flat washer, lock washer and nut on the inside. Perhaps if I also could not get the nut caught myself I would then reverse the bolt and put the nut and washers on the outside. Really curious to find out what is ahead of me.