Monaco Restart

Designs for inboard or outboard power

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slug
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Re: Monaco Restart

Postby slug » Sat Mar 25, 2017 4:29 pm

I have mine in the engine comp.in the Gentry. Apparently only requirement is to have terminals covered. (In case someone drops a wrench or beer can?)

Doug

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billy c
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Re: Monaco Restart

Postby billy c » Sat Mar 25, 2017 5:58 pm

Just get a marine battery box to secure it in place and enclose the terminals and you will be fine
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speedracer
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Re: Monaco Restart

Postby speedracer » Sun Mar 26, 2017 5:57 am

Thanks guys. I have the marine box so covering the terminals will not be an issue. There is room in the engine compartment to be able to lift the battery out when needed. I am leaning that way. Thanks again.
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speedracer
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Re: Monaco Restart

Postby speedracer » Thu May 18, 2017 7:12 pm

A few progress photos. I've gotten the engine set and aligned to the shaft. I ended up with 5 1/8" shaft beyond the strut. Should be good to go. Installed the water intake strainer and plumbed it. Also installed the exhaust ports and hoses.

This weekend I plan to install the steering cylinder and fill the system with fluid. The steering reservoir and lines have been installed for awhile waiting for the engine to arrive. Probably will also install the gas tank and fuel lines as well this weekend.
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speedracer
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Re: Monaco Restart

Postby speedracer » Thu May 18, 2017 7:15 pm

A few more progress photos.
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slug
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Re: Monaco Restart

Postby slug » Fri May 19, 2017 3:04 am

Recently there was a discussion regarding a shaft that failed, and the consensus was that there was too much shaft extending past the bearing, allowing too much flexing. In my opinion, 5" is way too much gap. I'd check in to that and consider shortening the shaft.

Maybe Roberta will chime in.

Doug

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Roberta
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Re: Monaco Restart

Postby Roberta » Fri May 19, 2017 5:47 am

On a 1" diameter prop shaft, you should have about 3/4" to 1" between the front edge of the prop hub and the aft end of the strut. I have about 3/4" on my Torpedo. You need some room for the water to flow through to lubricate the strut bearing. Typically a prop hub for a 1" shaft is about 3-1/2" long. Then you have the threaded part for the nuts on the shaft. I would set the prop in place and make sure you have 1" or less distance. There is a lot of force placed on that shaft and the unsupported shaft will have flexing induced on it and will eventually fail. Ask Neel Thompson.

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Re: Monaco Restart

Postby neel thompson » Fri May 19, 2017 8:08 am

Yes it was my shaft that failed last summer. There is a discussion about it on the "Gentry Build Continued" thread. When building my boat, I missed reading about the distance between the strut and prop !! I have corrected the problem after spending $900 to replace the original shaft and prop. Roberta and Doug have given good advice.

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Bill Edmundson
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Re: Monaco Restart

Postby Bill Edmundson » Fri May 19, 2017 8:50 am

Generally, the gap is one shaft diameter.

Bill
Mini -Tug, KH Tahoe 19 & Bartender 24 - There can be no miracle recoveries without first screwing up.
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speedracer
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Re: Monaco Restart

Postby speedracer » Fri May 19, 2017 9:08 am

Thanks for all of the advice.

I had seen and reviewed with great interest of what the proper length of shaft should be and what had happened to Neel. In fact, off forum, Skip provided additional comments from his Monaco build. He and I ended up with the length of 5" for now. Since I am using an 1 1/8" diameter shaft perhaps slightly more is allowed in front of the prop than the 1" shafts allow. This seems to be negligible though.

The ultimate test will be when I decide on the prop, attach it and see what I've ended up with. If not within tolerance, I'll have to get the shaft cut down. In hindsight, I probably should have had the prop on hand when doing this phase of the project. Lots of hindsight going on in my shop, LOL.
Great spirits have always encountered violent opposition from mediocre minds. Albert Einstien

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sscobra
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Re: Monaco Restart

Postby sscobra » Fri May 19, 2017 10:05 pm

I think some are misunderstanding what Chris has said. He has 5 1/8" of shaft extending past the strut, NOT between the strut and the prop. My total length of shaft past the strut is only 4.5". As Roberta said, her prop hub is about 3.5" (mine is 2 5/8" thick). The nut is 7/8" thick. I have about 1/2" of thread past the nut. I ended up with only about 5/8" of space between the prop and strut. Using Roberta's prop: 3.5" + 7/8" + 1/2" = 4 7/8", leaving only 1/4" space between the prop and strut. Using my prop: 2 5/8" + 7/8" + 1/2" = 4", leaving 1 1/8" space between the prop and strut. The recommended space is a shaft diameter (1 1/8" in Chris's case) or less. Hopefully his prop hub will be more like mine in thickness than Roberta's otherwise he will have too little space. Skip
Built the Glen-L Monaco, 2016.

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BayouBengal
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Re: Monaco Restart

Postby BayouBengal » Sat May 20, 2017 3:13 am

Not smart enough to participate in the shaft discussion, but the motor install looks great! Looking forward to seeing you on the Tchefuncte.

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speedracer
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Re: Monaco Restart

Postby speedracer » Sat May 20, 2017 7:04 pm

Thanks for clearing that up Skip. Correct. I have 5 1/8” from the end of the shaft to the rear end of the strut. No prop is installed yet. Like I said, now I wish I had purchased the prop before completing this stage of work. Oh well – As a superintendent I once had always said, “It is what it is”. I let him go after hearing that saying about 10 times.

Thanks Bayou Bengal. Me too.

Finished the steering install and assembling the rear storage compartments today. A few photos attached. Started working on replacing the fuel sender unit in the tank (the one that came with the tank didn’t have a return fuel fitting). The fitting on it is much smaller than the line so I’ll have to search for parts tomorrow.
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speedracer
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Re: Monaco Restart

Postby speedracer » Sat May 27, 2017 2:56 pm

Recently installed the fuel tank, lines and cutoff.
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speedracer
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Re: Monaco Restart

Postby speedracer » Sat May 27, 2017 2:57 pm

Also installed the blower assembly.
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