Eximius - from the beginning
Our sailing experience on a 1987 Catalina 34 which we named 'Eximius' which google showed as the Latin translation for 'Special' We hope that our posts will help others looking to take their boat beyond the local waters as well as provide entertaining reading. I'm a Brit, so my view of entertaining may not match yours ;) See you on the water. The Journey Starts Here Paul
Saturday, March 7, 2026
Replacing the Standing Rigging. P iii
Friday, February 6, 2026
Servicing our Exhaust Muffler
Servicing the Exhaust Muffler on our Catalina 34
Servicing the Muffler
Step 1: Wash it down with soap and water. I'm pretty sure the leak was from the Inlet side of the muffler but not where expected. Now I'm pretty sure it's from the Malformed Inlet Tube, it looks like it has a fold along the length of the tube, one that cannot be closed by just using hose clamps on the hose.Step 2: I dried of the outside of the muffler and filled it with water, all the way to the brim of the inlet and outlet tubes. NO WATER LEAKED!
Step 3: Using a Dremel, I cleaned up the fold in the tube so that I could fill that fold and thus ensure that the hose clamp can fully close the Hump Hose around that tube. Then I sanded down the entire surface with 60 Grit paper, and use the Dremel to remove any lumps in the surface of the tubes. I did the same for the area around the drain tap.
Step 4: After the sanding, I washed the entire surface with Acetone, got out some Marine 2 part epoxy and filled all of the dings that needed it. Then let the Epoxy cure overnight.
Step 5: Second wash down with Acetone and time to paint the entire surface of the Muffler. ( A new one cost around $700 ). I am applying 2 or 3 coats of the Petite EZ-Poxy Modern Polyurethane Topside Paint, Med White, same as what I used on the Propane Cylinder holders last year.
I decided on flipping the Muffler upside down and applying a coat of the epoxy paint to the underside and adding a 3rd coat around the outside of the base, just to complete the job.
Thursday, January 29, 2026
Replacing the Raw Water Strainer
Improving our Raw Water Strainer
The current Raw Water Strainer setup
The New Raw Water Strainer
SEAFLO Raw Cooling Water Intake Basket Strainer is available on Amazon. Cost is $29. This is the one that has an Inlet and Outlet that fits 1/2", 5/8" & 3/4" Hose.Estimated time for this project:
- Remove old Hose to the Thru Hull 5mins
- Remove old Hose to the Raw Water pump 20mins
- Put a clear hose on the Thru Hull and open the valve to find the Water Level and Mark on the bulkhead. 10mins
- Mount the new Strainer - Two screws into the bulkhead. 15mins
- Measure & Cut the hose from the thru hull to the strainer ( 5/8" hose connection ) 5mins
- Connect hose to the Raw Water Pump and thread it around the engine into the Strainer area under the sink and connect to the Elbow. 30mins
- Connect from the Elbow to the outlet of the strainer. 10mins
- Open the through hull - check for leaks.
Project Materials
- SeafFlo Strainer $20
- 5/8" Hose $74
- 12 x Hose Clamps $12
The bend in the inlet hose is clearly visible here. I can probably remove it by just sliding the hose up slightly on the Strainer hose connections.
Tuesday, January 27, 2026
Replacing Standing Rigging - Prep the boat
Preparing the boat for replacing the Standing Rigging. ( Pt ii )
- Shrouds: Wires running from the mast to the sides of the boat, preventing lateral (side-to-side) movement.
- Stays: Wires supporting the mast in the fore-and-aft direction.
- Cap Shroud: Runs from the masthead to the chainplates for upper mast support, sometimes via the Spreaders.
- Lower Shrouds: Attached to the lower section of the mast to provide base support.
Friday, January 16, 2026
Back to the dock from the Haul out 2026
Getting Eximius back to the dock from Playboy Marine.
note.Engine Electrical Harness Revisited
The Engine Electrical Harness
I'm in the process of replacing the Engine Alternator External Regulator. The existing regulated is a dumb backup from the previous system, the new Regulator is a Balmar Max Charge MC-618-H
I'm playing with the idea of keeping the old regulator and all of it's wiring to serve as a backup if the New Regulator fails ( it won't be 'new' for long :) )
However, a supplemental reason: I'm planning on replacing our 'House' batteries. Currently we have 4 x Trojan T105 225ah 6v Batteries with a total usable 12v of 225Ah( 50% of 450Ah ). The replacement will be a 300Ah 12v LiFePo4 battery which has a usable capacity of 90% or 270Ah at 12v. (Note, the 225Ah of the current Flooded Lead Acid Batteries is actually much less because the voltage of the batteries drop significantly as the remaining capacity drops)
Therefore, the Regulator must have a choice of "Lithium" Charging Profile and that means that the backup regulator must also have a "Lithium" option.
With that clearly in mind, I need to address the issue of switching over from the Primary External Regulator to the Backup External Regulator ( using an internal regulator is not an option for the safe operation of LiFePo4 Batteries)
If the backup Regulator was the same as the Primary, the switch over process could be as simple as moving each of the terminal connections from the Primary to the Backup - the Backup being already programmed to the same settings.
There's more complex ways to manage the switch from Primary to Backup regulator, but it's just not worth the effort. I figure that switching over the regulators would take all of 3 or 4 minutes and having to make any moves inside of the engine bay would take a lot more time and involve a lot more steps.
Ok, decision made. I'll remove the old regulator.
All that leaves is the method of connecting in the New Regulator to the Alternator, here's another crest to overcome.
When I rebuilt the engine harness in 2016, was it really that long ago? Yep! Six years ago, there's been a lot of water under the keel since then. Well, in 2016, I built a really nice engine harness and nicely labeled the wires in the engine bay, including transparent heat shrink tubing. Guess what! The labels are unreadable today! Six years being close to the engine heat and dust have made it impossible to even guess what the labels read.
The original ( to us ) engine harness was wired to a 'chocolate block' type terminal block. The terminations were not done well, the wires were burnt, not the correct colors nor sizes. The new engine harness wires were contiguous from the Engine Control panel to as close to the engine that I could get them, in some cases they went directly to the Alternator.
Now I realize the benefit of a terminal block in the engine bay. The most likely area of wiring failure is very close to the engine, especially for the smaller gauge wires. So I'm going to install a terminal block.
Each wire will be correctly terminated with heat shrink tubing and I'll have a printed image of the terminal block so that wire recognition will be easy.
Then I'll run wires from the terminal block to there destination. That should result in a very clear, clean and with protection from the Vibrating Engine.
OK, decisions made. Now to draw up the wiring schematic.
Deck Leak by a Stanchion
We found a leak at the base of a deck Stanchion
The plan:
- Remove the stanchion
- Remove the screws and the backing plate
- Clean up the underside of the deck and determine the extend of the damage.
- Make a fiberglass backing plate larger than the stainless steel backing plate,
- Glue with resin to the underside of the deck and let it cure
- Redrill the holes
- Apply Butyl tape all around the top of the deck where the stanchion mounts
- Re-mount the stanchion with shorter bolts ( so that I can use a socket to tighten them ).
- Secure the SS backing plate in place and torque down the stanchion. All done.
- With the Fiberglass panel in place, next was Drill through from the topside
I marked the location of the new holes which would put the base plate of the stanchion about 1/8" from the corner of the toe rail and deck. I'm hoping that this will allow deck water to run behind the plate rather than build up until it's the height / depth of the plate.






















