500/520 DB official thread

Those are great tips. I appreciate your time. We plan/hope to remove both drive shafts tomorrow morning and the Starboard strut tomorrow afternoon. Going to send them all to a Heavy Metal Prop Shop called Miller Island in Baltimore for the checks and straitening as needed.

It seems SeaRay could have made those access panels larger for better access.

Hope to have all back to us by next Friday to start reinstalling the week after. Ughhh what a process.

Thought I was only looking at new cutlass bearings. I am pretty sure we purchased the boat this way (3yrs ago) which, I am pretty aggravated that I missed it and my surveyor did as well.

Anyway, did you have to buy new props for the corrosion issue.
I sent the damaged with a spare I had and the PropScan data sheets; they seem to think it can be repaired but they have the spare and pitch requirements if replacement is required.
 
Your added comment is important because we were thinking of raising the back of the boat and reblocking to get the shafts out or digging the ground out slightly but your idea makes more sense.
I ran the numbers when I set up the blocking. Level boat (level at the keel) you need 22 inches vertical clearance between the ground and keel to pull the shafts with the struts in place.
Shafts slope downward 10 degrees relative to the keel (mine were actually 9.75 degrees) and are 120 inches long.
 
I ran the numbers when I set up the blocking. Level boat (level at the keel) you need 22 inches vertical clearance between the ground and keel to pull the shafts with the struts in place.
Shafts slope downward 10 degrees relative to the keel (mine were actually 9.75 degrees) and are 120 inches long.

Hope we are both back on the water by mid/late May!!!

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I ran the numbers when I set up the blocking. Level boat (level at the keel) you need 22 inches vertical clearance between the ground and keel to pull the shafts with the struts in place.
Shafts slope downward 10 degrees relative to the keel (mine were actually 9.75 degrees) and are 120 inches long.

Progress slowed. Shop could not get the coupling off the shaft because they didn’t have the right tool. see below...


Attempted to install hydraulic press onto coupling, adapter flange required is different size than standard.
- Slid shaft forward and attempted to install slide hammer.
- Rudder is directly in path of slide hammer.
- Returned to shop and gathered different style hydraulic press kit.
- Transferred onto boat and attempted to install new flange adapters.
- Diameter and bolt pattern doesn't match any of the standard adapters in kit. will have to make/order proper size adapter plate.

- Created template and returned to shop.

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Progress slowed. Shop could not get the coupling off the shaft because they didn’t have the right tool. see below...


Attempted to install hydraulic press onto coupling, adapter flange required is different size than standard.
- Slid shaft forward and attempted to install slide hammer.
- Rudder is directly in path of slide hammer.
- Returned to shop and gathered different style hydraulic press kit.
- Transferred onto boat and attempted to install new flange adapters.
- Diameter and bolt pattern doesn't match any of the standard adapters in kit. will have to make/order proper size adapter plate.

- Created template and returned to shop.

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Hopefully they’ll get it put back together soon.
 
Anyone have a source to replace this? Went to turn down the temp on the galley freezer and it just fell off.
Tim
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If it's an Isotherm, I have ordered parts from

Sure Marine Service, Inc. | 5320 28th Ave NW | Seattle, WA 98107
Toll Free: 800.562.7797 | Office: 206.784.9903 | Fax: 206.784.0506
I believe it’s a sub zero.
Tim
 
In this deep might as well rebuild and clean up all of the raw water strainers and replace hoses while waiting on the running gear to come back.
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All of the running gear parts came back yesterday so Monday we will start the re-assembly. As it ends up they said there wasn't anything wrong with the port prop even though it has electrolysis pitting.
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All of the running gear parts came back yesterday so Monday we will start the re-assembly. As it ends up they said there wasn't anything wrong with the port prop even though it has electrolysis pitting.
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Getting ready to place and align the shafts for setting and shimming the struts. First Pic is the fixture to align the shafts at the propellers and second is the log bushings installed I made a couple of weeks ago. The Shafts are exactly 58 inches apart at the logs.
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Getting ready to place and align the shafts for setting and shimming the struts. First Pic is the fixture to align the shafts at the propellers and second is the log bushings installed I made a couple of weeks ago. The Shafts are exactly 58 inches apart at the logs.
View attachment 104776 View attachment 104777
Then all of the other work going on; polishing and waxing, bottom paint, strainers and pumps reinstalled:
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New seals of course; housings, clamps, and bellows are good to go.

Are any of those maintenance items? My shop suggested I replace both sets, referred to them as the bellows. $1400 each.
 
Are any of those maintenance items? My shop suggested I replace both sets, referred to them as the bellows. $1400 each.
They are. There are Delrin bearings that keep everything centered about the shaft in the housings that wear. Then, the bellows can show signs of cracking. This is a picture of that bearing; this one is in good shape.
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They are. There are Delrin bearings that keep everything centered about the shaft in the housings that wear. Then, the bellows can show signs of cracking. This is a picture of that bearing; this one is in good shape.
View attachment 104786

I hate to spend another $2800 but if the bellows are worn out (or damaged in removal) then I am in to deep not to do the right thing. It took them several days to get the coupling separated from the Prop shaft. I think part of the issue was having the wrong tools.
 
I believe it’s a sub zero.
Tim

I would just pull the switch out and look at the part number. It's probably a very common item on internet.
 

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