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 Post subject: Images of W50 being pulled out from under cockpit
PostPosted: 09 Jul 2018 19:19 
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Joined: 04 Aug 2013 13:33
Posts: 169
Pulled the Westerbeke 50 out yesterday. Everything was disconnected except for the control panel, so it was just a matter of jacking it up and building a cradle high enough to pull it out. By the way, Step 1 was to immobilize the shaft in case any movement caused the LasDrop seal to spew water...

Here are descriptions of the images:
1. Jack in place with ratchet strap to keep engine from going backward. This was soon replaced with come-along strapped to the mast.

2. Come-along pulled engine forward a bit to clear shaft hub. Engine jacked up about 2", need to go to 3" for bell housing to clear from of forward wall of the engine well.

3. With the forward part of the engine with 2 2x4s under the two forward mounts, the back is jacked up at the transmission. The plywood under the jack is 3/16" so it flexed and helped distribute the load.
When the back was up 3+", another pair of 2 x 4s were added that butt up against the first two pairs so now the engine was resting on runners 3" high.

4. At this point, it took very little effort to pull the engine straight out.

5. Almost out...

6. Now the Westerbeast is under the companionway ready to be lifted out.

7. Here is a view of the cradle. Now the real work begins preping for new engine:
Clean, paint, sound-proofing, cleaning up old wiring etc. etc...

By the way, before doing this I removed the water pump and alternator as they were two extremities that were easy to remove. Using this method, it would've been easy to raise it higher if it were necessary.

More later.


Attachments:
File comment: Jack in place, ready to begin
1 - 20180708_141052.jpg
1 - 20180708_141052.jpg [ 1.92 MB | Viewed 0 times ]
File comment: Jacking up front of engine
2 - 20180708_150501.jpg
2 - 20180708_150501.jpg [ 2.05 MB | Viewed 0 times ]
File comment: Jacking up the rear of the engine for cradle runners
3 - 20180708_154457.jpg
3 - 20180708_154457.jpg [ 2.33 MB | Viewed 0 times ]
File comment: Leaving the engine box
4 - 20180708_174400.jpg
4 - 20180708_174400.jpg [ 2.34 MB | Viewed 0 times ]
File comment: Engine almost out...
5 - 20180708_175224.jpg
5 - 20180708_175224.jpg [ 2.66 MB | Viewed 0 times ]
File comment: Engine out and under the companionway
6 - 20180708_174950.jpg
6 - 20180708_174950.jpg [ 2.61 MB | Viewed 0 times ]
File comment: View of cradle
7 - 20180708_181620.jpg
7 - 20180708_181620.jpg [ 2.36 MB | Viewed 0 times ]

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Dave Lorick
Lunacy #198
Tampa, FL
 
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 12 Jul 2018 04:48 
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Joined: 09 Jul 2008 12:51
Posts: 212
Lookin' good, when do you set the new engine in ?


 
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 12 Jul 2018 06:37 
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Joined: 04 Aug 2013 13:33
Posts: 169
Beta recommends measuring for custom mounts with the old engine out. I'll pull the Westerbeke out Monday (when our club is closed and there is less activity at the hoists). Then I'll measure and send in dimensions. Stan sent me info and images on a T37 / Beta 38 repower and all they had to do was minor spacing. That differs from what others reported.

Anyway, once the custom mounts are settled I'll order the engine. I assume the cradle will have to be rebuilt for the Beta 38 to slide (pulled) in.

If delivery takes 6 weeks (like Stan estimated), I'll be lucky to have the back end of the boat cleaned up and painted with new materials in place by the time it arrives. I want to be ready to drop it in so it's not taking up loading dock space at our club.

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Dave Lorick
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Tampa, FL


 
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 14 Jul 2018 13:20 
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Joined: 14 Jul 2012 20:36
Posts: 283
Built a skid similar to yours on two occasions, once to rebuild about 17 years ago and last fall for the new Beta 35. On the replacement, we lift the old out and unhooked the hoist, hooked to the new with custom mounts and went right in. Crane time less than an hour and used same skid to slide it back in. Very controlled, we used a 2x4 to raise it up to get the oil pan over the sump. Good luck with the install.

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Southern Chesapeake Bay


 
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 15 Jul 2018 07:58 
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Joined: 04 Aug 2013 13:33
Posts: 169
You make a good point about use of the 2x4 to raise the engine up if the skid or cradle is flush with the mounting bed. I assume you mean like a lever to lift the engine over - true?

The images I saw on this site showed the 2x4 runners even with the mounting bed. I started out thinking that would be the way to make it, but it was clear the engine wouldn't be high enough to clear the well it sits in.

The idea then became to jack up the front 3+" and put 2x4 under the front mounts (long enough to act as runners) and then jack up the back to even it out. This was less load than trying to jack up the whole engine.

I assume with the Beta 38 I'll rebuild the cradle after considering its dimension. The posts I've seen here report being able to slide it in and out on 2x4 runners level with the mounting bed (or bearers as Beta calls them). Now I wonder if that method required nudging it up to clear the front fiberglass face of the motor well.

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Dave Lorick
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 15 Jul 2018 22:36 
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Joined: 14 Jul 2012 20:36
Posts: 283
I'm guessing that you got the deep sump, which is std. It's better, holds more oil and helps maintain oil pressure when motorsailing with the boat healing.

Ours the skid was level and in-line to the engine stringers, but we added two 2x4s on each side to help slide back. Then they were pulled out after the engine was slide back and sitting over the stringers. I remember using a bunch of 2x4s and blocks of wood as leverage to get the pan over and the sliding 2x4s out.

Used a 4:1 boom preventer to the mast to control and help ease the engine back. It can take off in a second. Also helps hold it while you verify alignment. I move the the motor forward half inch. The reason was, that gives me the clearance needed to pull the tranny without moving the motor forward.

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Hull #208, Puff Card
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 19 Jul 2018 07:16 
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Joined: 04 Aug 2013 13:33
Posts: 169
Here are a couple images of the motor coming out last Monday. Club is closed on Mondays so only dinghy (beach launch) activity and no crowd at the hoists.

I did have to hail a coach boat when he dropped a mark dead-ahead with a fleet of Learn to Sail prams approaching as we were returning to the slip after pulling the engine. I told him we don't have much maneuverability with only an inflatable / outboard tied to the quarter and us crawling along at a couple knots.


Attachments:
Motor pulled 20180716.jpg
Motor pulled 20180716.jpg [ 4.79 MB | Viewed 0 times ]
Motor over companionway 20180716.jpg
Motor over companionway 20180716.jpg [ 4.99 MB | Viewed 0 times ]

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Dave Lorick
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 14 Aug 2018 18:33 
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Joined: 29 Dec 2006 09:38
Posts: 458
Your pictures are largely the same as I posted on the technical part of this T37 website when I replaced my Westerbeke 10 years ago. The reconfiguration of the mounts was the technically complex part--I had to cut down the box and have some metal work done to fit my Yanmar in---I am told Beta says that they can do it all without cutting---not sure how they pull that off as the Westerbeke and Hurth transmission had an odd exit about 1.5" below the plane of the motor mounts. But others on this list have put Betas in. Not sure what support Beta provides for getting all the angles right but remember to cut things down a bit lower, because you can always shim up, but you will have to take the engine out if you have to cut it down more. Yanmar produces an installation manual that is really generic to just about any engine. Getting the geometry so that the perfectly aligned shaft plane goes right down through the down tube and exact center of the cutless bearing is key (traditional way is to use a string to find the center of your engine output shaft and put it to the center of your cutless bearing--that will give you the exact angle. This is critical to aligning the engine. You want the engine mounts to be as near the center of their adjustment range when you put it in for obvious reasons.
Ray Durkee
T37 #373


 
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 Post subject: Re: Images of W50 being pulled out from under cockpit
PostPosted: 16 Aug 2018 06:21 
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Joined: 04 Aug 2013 13:33
Posts: 169
I put a Yanmar in my last boat about 30 years ago (tempus fugit !). I bought the installation manual, opened the crate and then thought about where to go from there. I built a model of the critical dimensions (hub face, mount locations and angle). With the model set on the engine bed, I measured how far off things were and cut and capped the bed accordingly (it had to be lowered several inches and brought inward).

The engine set in place and the mounts only needed a slight adjustment to raise the engine due to compression of the mounts from the weight of the engine. Sounds easy, but it took a couple months overall which is why I thought $800 for custom mounts from Beta would be a bargain.

Beta must have some flexibility in what they can do with mounts. My first set of measurements were sent back showing the front mounts had to be moved aft to clear access to the oil filter. The measurement instructions show what has to be measured but not how to measure it - only that a level, carpenters square, and a ruler will be required. I used a short and meter long rule graduated in millimeters for simplicity. As a reality check, I made an H-jig with screws marking the center of the 4 mounts and a center-line to the shaft face. Everything looks like it should work okay.

The motor should arrive in town 9/14. We'll see... I have a lot of work to do to prep, clean, paint and sound-proof the area.

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Dave Lorick
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