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Topics - Jon W

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Main Message Board / Engine Control Panel Tach and Gauge Lights To LED
« on: March 01, 2022, 02:57:51 PM »
I saw on another thread some questions about LED PNs, and thought Id pass along what Ive tried. I just changed my 1987 MK 1 cockpit engine control panel tachometer and gauge lights to LED. The tach, temp, and fuel gauges are all 1987 era Teleflex brand. The voltage gauge is also Teleflex, but was bought new to replace the ammeter in 2015.

For reference the incandescent light bulbs were 1893 for the tach, and 194 for the temp and fuel gauges. The newer voltage gauge was different and had a PC 194. You cant change the bulb on this, you have to replace the whole assembly.

I purchased LED bulbs and a base socket from The PNs I used are as follows:

The tachometer LED bulb
BA9S-RHP5: BA9s LED Boat and RV Light bulb 5SMD LED Tower BA9s Retrofit 96 Lumens red.

The temperature, fuel, and voltage gauge LED bulbs
194-RCOB1W:  194 LED bulb COB LED T3.25 Miniature Wedge Base 135 Lumens red.

The voltage gauge PC 194 base socket replacement
T3.25S-TW: 168/194/921 (T3-1/4) Twist Lock Wedge Base Socket T3.25 Socket. (I didnt check to see if this base socket would fit in the older gauges).

Main Message Board / Chain Plate Tension Rod Adjustment
« on: September 23, 2021, 01:41:09 PM »
Does anyone know the procedure to adjust/check the chain plate tension rod is installed correctly? Thanks for the help.

Main Message Board / ABYC Wire Color Code For Engine Hour Meter
« on: June 01, 2021, 11:09:14 PM »
The hour meter in my tach has stopped working. The tach works fine so will install a separate hour meter near the Nav Station. I don't see engine hour meter listed in my ABYC DC wiring color code chart. Would it be orange for "Accessory Feed", violet/purple for "Ignition", or something else? Thanks for the help.

Main Message Board / Why We Have Our Boats
« on: May 05, 2020, 04:59:08 PM »
This past Friday San Diego Bay was opened for recreational boating. Today I went for a solo sail. I intended to stay in the bay with full main and jib to check for gremlins after sitting for a month. I couldn't resist the view so kept going out to the ocean. WNW wind varied between 10-16 knots. Reefed the main and jib right before the point, everything balanced, a great sail with typical swell. Unfortunately it was tack city coming back due to wind direction, so ended up motoring most of the way in (against the tide).

Main Message Board / ICOM CommandMic at
« on: April 02, 2020, 05:17:19 PM »
Thought I'd pass this on and maybe save someone some investigating.

The wire on the ICOM CommandMic that came with my boat has been falling apart. The mic still works great so I decided to get the wire replaced. Turns out the cost was just under $200, might as well get a new one. Unfortunately the new HM-195 ($150) does not work with my old ICOM 422 fixed mount VHF. I called ICOM and they told me only an HM-127 or HM-157 are compatable.

For anyone facing the same problem, and likes the convenience of a full function remote microphone in the cockpit, I was able to find an HM-157 at for ($150). It includes a 20 ft extension cable, and sst mounting plate. (I've already got these, but no harm in a couple more spares.)

Even if you're not looking for a remote mic, it's worth checking out anyway. Lots of stuff, some prices are better than other places, the service is good, and delivery was quick. Stay safe.

Recently my oven burner quit working. The pilot would light and stay lit, but I could not get the burner to light. In looking for help, I found a troubleshooting guide on the Sure Marine Services, Inc website.

Using the guide identified that the oven thermostat was not working and the pilot orifice was dirty. I cleaned the pilot orifice. Using their exchange program, I bought a remanufactured oven thermostat, and sent them my old oven thermostat as a core exchange.

I installed it today, and the oven works again. Unfortunately the PDF of the guide is too large to add to this post. For reference I added the troubleshooting guide to the "Galley" section, under the "Stove / Propane" category in the Tech WIKI.

Main Message Board / Summer 2019 Mainsheet: remote oil filter
« on: May 04, 2019, 08:48:31 PM »
I was reading the new magazine and saw that a C36 owner installed a remote oil filter system. Removing  the lube oil filter from the engine and locating on a bulkhead is a very interesting idea. Has anyone with a C34 done a similar installation?

Main Message Board / Diesel Fuel Tank Volume - 1987 MK 1
« on: April 28, 2019, 07:54:32 PM »
I originally posted this as a reply on the Fuel Calibration message. I deleted it from there, and moved as it's own topic to make searching easier for anyone that may be interested in this type data in the future.

I've removed my diesel fuel tank to clean the inside and check for any corrosion of the aluminum inside the tank that may lead to a future leak. Since I have everything apart, clean and at home I thought it would be worthwhile to determine the volume on a per inch basis inside the tank. I marked off inch increments externally on all sides, subtracted the material thickness as appropriate. This should provide the best estimate of the internal volume at each 1 inch section. I then converted that volume number to the number of gallons in the tank per inch. Sum up the gallons at each inch increment and I get 25.16 gallons. Considering there is a lot of distortion from the tank fabrication process, I was very surprised to get this close to the advertised 25 gal capacity. I plan to do an actual measurement with gallons of water per inch to compare the two.

The main reason for this exercise is to have a story pole with number of gallons per 1 inch increment. The story pole will be kept on the boat as a manual back up to the fuel gauge. If needed, I can dip the tank through the port cockpit locker using my new tank access plates to check how much fuel I have in the tank.

So for what it's worth, the attached PDF is my attempt to characterize this odd shaped fuel tank. I'd be interested in comments to make this a better document.

Main Message Board / Inside a 1987 Fuel Tank
« on: April 20, 2019, 02:34:04 PM »
I've been planning to remove and clean the inside of my diesel tank since I bought it in 2015. With the recent posts on tank leaks, I decided to move this to the top of the project list to not only clean but also check the condition of the aluminum. To get into the tank, I cut holes in the top for 2 8" access plates I bought. The attached photo's are what I found.

The first photo is inside the forward end of the tank. The silver tube is the new fuel pick up I put in when I removed the OEM hose and strainer. It turns out what I removed wasn't the original. As you can see the original was still laying in the bottom of the tank along with a float from an old level gauge sender.

The second photo is the baffle inside the tank looking forward. I've read where folks said they cleaned their tank by pressure washing without top access plates, but don't see how they got by the baffle.

The third photo is the pile of old growth I removed from the bottom of the tank today after soaking with water and simple green for three days. Those pieces are all a minimum of 1/8" thick!!

Main Message Board / Ron Hill - Who Made The Galley Faucet In 1987?
« on: April 13, 2018, 02:42:40 PM »
Ron, you seem to know all of these historical types of details so thought I'd ask.

My galley faucet has a small leak. I thought it was a Scandvik product, so sent a photo of the faucet and called Scandvik this morning. The gentleman I spoke with said it wasn't a Scandvik product, and he wasn't sure what Catalina used back then.

Do you know who the galley faucet supplier was in 1987? Thanks for the help.

Main Message Board / Transmission Fluid
« on: March 27, 2018, 10:17:21 AM »
What automatic transmission fluid do you guys use when you change the transmission fluid? Thanks

Main Message Board / David Sanner Help - Tech WIKI Error
« on: January 08, 2018, 08:48:48 AM »
Hi David, I sent PM's to you but when I check the sent items in my message folder nothing shows so I don't know if the messages were actually sent.

I am creating a project write-up with photos called "1987 MK 1 Catalina 34 Aft Cabin Tool Storage". It is saved under the Storage category. I've added photos like I had for other project write-ups but get the following error -

Error creating thumbnail: /bin/bash: /usr/local/bin/convert: No such file or directory
Error code: 127

I would appreciate it if you could help me out. I have another write-up I want to add to the Tech WIKI but will wait until I know what the problem is. Thanks for your help.

Main Message Board / Anchor Chain and Rode - Check It Before You Take It
« on: December 22, 2017, 01:56:47 PM »
I may be the only surprised by this, but wanted to pass along to the group as an FYI just in case there is another beginner like me.

As the last step of adding an electric windlass to my 1987 MK 1, I ordered 200 feet of ACCO 5/16 G4 HT galvanized chain, and 200 feet of 5/8 Yale 8 brait spliced together from West Marine/Port Supply.

When I got the new chain and rode home I noticed it was stamped G3, not G4. They had sold me Proof Coil, not G4 HT. I brought it back. They apologized and expedited the correct 200 feet of G4.

About 1 week later, I picked up the corrected order. I verified in the store it had the G4 mark. I decided to lay it all out in the parking lot and verify it was 200 feet chain, and 200 feet 8 brait. It was 180 feet of chain and 210 feet of 8 brait. Wrong again.

I decided to keep the 180 feet of chain and 210 feet of 8 brait. Long story short Check that what youre buying is what you ordered no matter how reputable the supplier.

Merry Christmas, Happy Holidays, and Happy New Year

Main Message Board / Tech WIKI
« on: October 21, 2017, 06:42:51 PM »
Now that Sue has moved on, who do we contact for questions about adding content, links, etc in the Tech Wiki? Thanks for the help.

Main Message Board / Ulman Sails
« on: September 18, 2017, 04:02:56 PM »
I've gotten a few emails from Catalina Direct and a local Ulman Sail loft advertising a 15% discount on their main and headsails.

Anybody bought Ulman Sails and can share their experience with the quality, durability, effectiveness, etc. of Ulman Sails sold by Catalina Direct? Thanks for the help.

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